Métallurgie & Science des Matériaux

LTAS – Département d’Aérospatiale et Mécanique

F A C U L T E   D E S   S C I E N C E S   A P P L I Q U E E S

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Matériaux Métalliques Spéciaux

 

 

Ø                    Activités de recherche

Ø                    Collaborations

Ø                    Publications

 

Responsable : Jacqueline LECOMTE-BECKERS

 

 

 

 

Activités de recherche

 

§               Characterisation of mechanical and thermal hot properties

Description: The thermophysical properties of pure metals or alloys have been widely studied by the metallurgy industries, giving them the data needed for the simulation, but also for a better scientific understanding of different physical process. Today, the simulations of material forming process are powerful and irreplaceable tools for the design and the modelling of new pieces, for the automotive industry, for example. So, there is a constant need of thermophysical data more and more accurate on known material as well as data on new alloys. The laboratory of the sector MMS is specially equipped to study phase transformation and measuring thermophysical properties (a, l, Cp…) and studying microstructure of materials. ATD – DSC – TG (1500°C) – dilatometry (1500°C) – laser flash (2000°C) - optical microscopes - metallographic preparation - thermal treatment furnace and quench devices.

 

Publications: MMS102, MMS126, MMS101, MMS129, MMS128, MMS131, MMS108, MMS109, MMS112, MMS105

Research staff involved: M. CARTON

Partners: Aleurope, Hydroaluminium-Raeren, Sonaca, UCA, TAC, Focast, Fafer, CFR, CMI, MSM (A.M. Habraken, S.Cescotto) (University of Liège)

Related project: RW Convention 9813793 caract. à chaud; Contracts:  UCA, Gonterman Peipers, Arselor Sollac méditerranée, OCAS, Akers

 

 

§               Effect of carbides and inclusions in high alloyed irons and steels

Description: The goal of this project is to define the relationship between micro and macroscopic material properties that can be used in the simulations of the rupture mechanisms. A rigorous set of experiences must be planned and quantitative micro- as well as macroscopic techniques is required.

This project is interested in steels and high alloyed cast irons and is focused on the quantitative and statistical relationship between, on one side, the inclusions property, the amount of carbides and the microstructure and, on the other side, on the mechanical properties. This research is based on the methodology experimented in a previous project. This previous research was built on the development of experimental micro- and macroscopic techniques.

One of the main points is the size of the carbides and the inclusions, which makes it tough to detect them by classical microscopic imagery. So, other methods have to be developed.

In this project, the focus has been made on the diversity of the materials examined above the number of experiment made on each.

 

Publications: MMS103, MMS118, MMS114, MMS115, MMS111, MMS134, MMS135, MMS119, MMS136, MMS137, MMS130, MMS104, MMS116

Research staff involved: J. TCHOUFANG TCHUINDJANG

Partners: Forcast, Marichal Ketin, MSM (AM Habraken, S.Cescotto) (University of Liège), MICA ( E.Pirard) (University of Liège)

Related project: “Study of carbides forming elements in alloys type HSS and semi-HSS”, “Effect of carbides and inclusions in high alloyed irons and steels”, Convention RW 114877 INCA

 

 

§               Development of new alloys for hot rolls

 

Description: .The hot rolling mill is a massive piece that endures high service solicitation like thermal and mechanical constraints as well as fatigue or usury. The rolled product quality and the productivity of the process are directly related to the quality of the working mills.

The goal of this project is to enhance the knowledge in this sector and particularly to study the kinetic of the precipitation and the formation of the carbides required for a good quality of the product. Additional studies on surface corrosion will be done at the Complutense University in Madrid.

This approach is essential to define the optimal structure leading to the highest life span of the mills.

 

Publications: MMS120, MMS121, MMS117, MMS138, MMS1222, MMS123

Research staff involved: M. HERMAN

Partners: Marichal Ketin

Related project: “Study of carbides forming elements in alloys type HSS and semi-HSS”, Convention RW-MARICHAL KETIN 3967, 4524, 6060, DGRE - DRI - Project N0 01-10898 “Study of precipitation in foundry alloys type HSS” AND “Kinetic of phase transformations in foundry alloys for rolls type ICDP”

 

 

§               Thixomoulding

Description: Semi-solid metals exhibit time and strain rate dependent behavior known as thixotropy: they behave like solids in the undisturbed state and like liquids during shearing provided the shear rate is high enough. The solid-like behavior is due to the presence of a solid skeleton consisting of interconnected grains. Shearing breaks the bonds between grains leading to a release of entrapped liquid and decreasing the viscosity of the semi-solid alloy. Semi-solid metal forming called thixoforming exploits this thixotropic and shear-thinning behavior since the semi-solid slug may be handeable but also may flow easily in the die. The use of FE simulations to obtain the filling of the dies and to optimize the thixoforming process is clearly of a great interest.

The aim of this project is to write a new micro-macro constitutive equation that describes the semi-solid behavior. This will be made in two fronts: The first one is to plan a set of experiments in order to determine the parameters of this law for steels; the second one is to implement the new material law in the METAFOR FE code.

Publications: MMS113

Research staff involved: R. KOEUNE

Partners: CRIF,ULG,Pôle métal de Wallonie, ELAP (W. Legros, A.Rassili) (University of Liège), MC et thermomécanique ( JP. Ponthot) (University of Liège)

Related project: Subvention objectif 2- URBAIN Meuse-Vesdre Moyens, Contract Ascométal

 

 

§               Development of Ti-LBC for turboreactors TITAERO

 

Description: The main goal of this project is to develop a new material based on an existing alloy: Ti-LCB, but with better fatigue damaging properties and sufficient ductility.

First, the characterisation and the understanding of the relationships between the thermo mechanical history and the fatigue structural properties will be established. So, on one side, the construction of the microstructure along the thermo mechanical path, implying allotropic transformation or phenomena like rehabilitation, recrystallisation and grain growth, will be studied. On the other side, the microscopic mechanisms leading to the structural properties of this alloy, like tenacity, fatigue resistance and cyclic plasticity will be examined.

Another objective is to implement this knowledge into micro mechanical models. The project will focus on a physical based model able to predict the fatigue resistance of biphasic-Ti-alloys with thin grains.

The third goal is the validation of the model based on real loading studies.

 

Publications:

Research staff involved: M. CARTON

Partners: Tech Space Aero, MSM ( AM Habraken, S.Cescotto) (University of Liège)– University Catholic of Louvain ( PCIM Pascal jacques)

Related project: Convention RW 415659

 

 

§               Fabrication of metallic foils by vacuum deposition – First Spin Off

 

Description: Metallic foils have proved to be useful in many fields like packaging or magnetic products. So far, the foils have been mainly produced by rolling in the case of soft materials like aluminium, or by electrolysis in the case of metals like copper. Those process do not give the surface quality required, so the foils must be treated by PVD (Physical Vapour Deposition) afterwards.

In this project, a technique of SIP (Self-induced Ion Plating) is proposed. This technique would be able to realise foils with good surface quality in one step. The SIP process is a combination of cathodic pulverisation process and evaporation. Its main advantage is the high deposition rate and the good quality of the deposit.

In the actual state of the research, the goal is not yet to realise composite materials, but to look at the possibilities to achieve thin coatings of the materials that the composite will be made of.

 

Publications:

Research staff involved: S. PACE

Partners: RdCs

Related project: Convention RW – EVAFOIL – 415810

 

 

§               Micro-macro study of high temperature damage in steels

 

Description: This project attempts to set a micro-macro model of the hot damaging behaviour. Most of damaging models established so far are ductile cold rupture, fragile rupture, fatigue or creep. All are valid at low temperatures.

For monotone solicitations at very high temperatures, the damage process is fast creep or diffusion creep. The present project is focused on this particular phenomenon.

The industrial application is the simulation of the continuous casting and particularly the areas where cracking can start.

The final goal of this research is the definition of rupture criteria coupled with a macroscopic damaging model. Those criteria should be able to predict the cracking for any kind of solicitation and the origins of the cracking will be analysable.

 

Publications: MMS102, MMS127

Research staff involved: J. TCHOUFANG TCHUINDJANG

Partners: CDAM de Cockerill-Sambre-Usinor, MSM (A.M. Habraken, S. Cescotto, S. Castagne) (University of Liège)

Related project: ULg grants, “Micro-macro study of high temperature damage in steels”, “Study of carbides forming elements in alloys type HSS and semi-HSS”

 

 

§               Macrofoams, a new material for security in civil engineering

Description: Study and development of macro cellular foams obtained from cheap metallic components, in particular from recycled material (chips from machining, metallic wires, expanded metal sheets, …): study of possible topologies, analysis of fabrication possibilities, determination and modelling of mechanical, thermal and acoustic properties. Applications in the domain of safety and robustness of buildings (resistance to explosives, anti-intrusion walls, seismic resistance, …) or others (new types of safety barriers along the roads, light armour plating for money transporting cars, shock absorbers for parachuted material or for nuclear waste transportation boxes, …)..

 

Publications:

Research staff involved: J. TCHOUFANG TCHUINDJANG

Partners: University of liège : Division of Mécanique des Solides et des Matériaux -MSM- (CESCOTTO Serge), Division of l’Ingéniérie Sismique –SE- (PLUMIER André), Division of l’Ingéniérie du Feu –FE- (FRANSSEN Jean-Marc), Division of Cellule d’Etudes et de Développement en Ingéniérie Acoustique –CEDIA-  (NEMERLIN Jean)

Related project: CF – concerted action, “Macrofoams, a new material for security in civil engineering”

 

 

§               Virtual Intelligent Forging - Coordinated Action

Description: Forging and related metal forming processes are key industrial technologies since they are required to produce economically many highly reliable parts. Over the last decades, these industrial processes have been improved through many RTD projects in materials science, mechanical engineering and more recently in numerical simulation. The goal of ViF-CA is to gather and analyse this scattered knowledge in order to solve some of today's industrial problems and to incorporate into industrial practices the recent advances in virtual production, supply chain and life-cycle management. The strategy is to create a forging knowledge community through several scientific, technological, training and educational activities.

The consortium gathers educational and research organisations, experts in the various scientific areas, and a large number of forging, software and IT industries from 17 European countries. The Deliverables include a Book of forging, projects for an e-Database and an e-learning platform, benchmarks for process simulations and materials testing, and a structure for a virtual supply chain.

 

Publications:

Research staff involved: R. KOEUNE

Partners: MSM (A.M. Habraken) (University of Liège)

Related project: Convention NMP2-CT-2004-507331

 

 

§               Non-contact Ultrasonic sytem for rail track inspection (U-RAIL)

Description: Periodic in-track rail inspections are performed to detect critical defects before they grow enough to cause structural failure. Nondestructive inspection (NDI) technologies currently used worldwide rely mainly on conventional ultrasonic technologies. These use water filled rubber wheels, containing transmitter-receiver piezoelectric transducers, that are kept in continuous contact to the rail running surface. These methods have limitations, as they require contact conditions between the inspection probes and the surface of the rail track. Although such contact ultrasonic methodologies have been extensively and successfully used in detecting many surface-breaking and internal cracks, and are proved to be reliable, they are not perfect. In fact, train derailments caused by broken rails that pass inspection still occur.

In an effort to improve rail track inspections, this project proposes a non-contact ultrasonic system for periodic in-field inspections of rail tracks that has recognized advantages over conventional technologies currently available to the railroad industry. The feasibility study, the development and the manufacture of a prototype will prove the capability of the proposed inspection technique for in-track rail flaw detection..

 

Publications:

Research staff involved: M.CARTON, J. TCHOUFANG TCHUINDJANG

Partners: MSM (S. Cescotto) (University of Liège)

Related project: Convention COOP-CT_2004-507622

 

 

§               Open Access to the Belgian Nuclear higher Education Network FP6-Actions to promote and develop human resources and mobility

Description: As the Consortium BNEN, five Belgian universities (KULv, UCL, UG, ULg, VUB) have established in collaboration with the federal Belgian Nuclear Research Center, a common Belgian Interuniversity Programme of the 3rd cycle, a "Master of Science in Nuclear Engineering". The aim of this project is to use the experience of the Consortium BNEN for the realization of a common "European Programme in Nuclear Engineering".

The objective of the BNEN project is to provide commonly accepted evaluation methodologies especially adapted for the assessment of education programmes; also the conclusions of an external evaluation of the BNEN scheme by EU-25 stakeholders in combination with a self assessment of the scheme, both based on the afore-mentioned evaluation methodologies. Another goal is to obtain recommendations and suggestions how the BNEN scheme and experience can be used for the creation of the common "European Nuclear Education Programme", and in extension how the scheme can be useful for the set-up of European education programmes in general. Finally, it should get points of particular interest that are of importance to stakeholders of the new member countries and to women, and that therefore need to be integrated into the common "European Nuclear Education Programme".

At the end the BNEN project will have contributed to the mobility of the European scientists and the creation of the European Area of Higher Education, to the integration of the candidate countries into the European Research Area and thus to the enlargement of Europe and also to the reinforcement of the place and role of women in science.

 

Publications:

Research staff involved:M.CARTON, M. HERMAN

Partners: ULg, UCL, RUG, VUB, KUL, SCK-CEN

Related project: Convention FP6-012564-BNEN

 

 

 

 

Collaborations

 

 

Le secteur des Matériaux Métalliques Spéciaux entretient diverses collaborations, aussi bien à l'intérieur qu'à l'extérieur de l'ULg.

 

§               Collaboration dans le cadre d'accords culturels Belgique - Bulgarie avec l'université de Sofia et plus particulièrement le Professeur L. Terziev. La recherche porte sur des sujets aussi divers que les alliages zinc-aluminium, les fontes au chrome contenant du graphite ou encore la solidification d'un acier à outil.

§               Organisation de congrès et de séminaires. Au début du mois d'octobre 2002, le congrès international "Materials for Advanced Power Engineering" sera organisé en collaboration avec le Forschungszentrum Jüllich au Palais des Congrès de Liège. Annuellement, J. Lecomte-Beckers participe à l'organisation d'un cycle de perfectionnement en fonderie au sein du groupe fonderie de l'Union Wallonne des Entreprises.

§               Participation aux projets européens COST 501, 503, 504, 517 et 522 à présent terminés et ceux en cours tels que COST 536 et 538, en collaboration avec le MSM et le MICA.

 

 

 

 

 

 

 

Publications

 

 

§               Refereed Journal Publications

MMS122 — J. LECOMTE-BECKERS, L. TERZIEV, J.P. BREYER, Utilisation et performances de cylindres en fonte à haut chrome avec graphite, Revue de métallurgie - novembre 1999 - N°11 - P.1401-1411.

MMS123 — J. LECOMTE-BECKERS, L. TERZIEV, J.P. BREYER, Applications and performance of graphitic chromium cast iron, Stahl N°1- 2000-p46-50-ISSN0038-920X.

MMS124 — A. MAGNEE, J. LECOMTE-BECKERS, Microstructure and abrasion resistance of tool steels reinforced by dispersed oxides and carbides phases, Revue de Métallurgie -octobre 2000-p.4/9.

MMS103 — L.DE COLNET, E.PIRARD, J.LECOMTE-BECKERS,  J. TCHOUFANG T, Image analysis of carbides in high speed steel rolls and their relationship with the mechanical properties, Progress in Metallography ,Special edition of the Practical Metallography 32,Werkstoff-informationsgesellschaft 2001, p.139-143.

MMS110 — J. LECOMTE-BECKERS, A.MAGNEE, Microstructure and properties of PM Steel reinforced by dispersed oxides and carbides phases - Stahl N°10- 2000-p9-50-ISSN0038-920X.

MMS133 — B. ROBERTZ, F. BOSCHINI, R. CLOOTS, A. RULMONT, I. VANDRIESSCHE, S. HOSTE, J. LECOMTE-BECKERS, Preparation of BaZrO3 powders by a spray-drying process, J. Mater. Research vol 18 N°6 juin 2003 P1

MMS118 — J. LECOMTE-BECKERS, J. TCHOUFANG TCHUINDJANG,E.PIRARD, J-P BREYER, Physical metallurgy of a  HSS material for hot rolling mill rolls, Stahl N°2- 2003 -p88-92-ISSN0038-920X.

 

 

§               International Conference Proceedings

MMS120 — J.LECOMTE-BECKERS, L.TERZIEV,V.BOJINOV,J.P.BREYER, Use of graphitic chromium cast iron in hot stip mill" in Proceedings of the conference SARUC 99,  -Witbank - south Africa - p49-55 -Ed. The Saruc secretariat PO Box 263175 Three Rivers 1935 South Africa.

MMS102 — J.F.CHARLES, A.M. HABRAKEN,J.LECOMTE, Integration of recristallisation model coupled with an elasto-vosco-plastic law .Experimental test and calibration, In Proceedins of the conference ESAFORM II 99 - avril 99 - Guimaraes (Portugal)

pp529-432, J.A. Covas Ed .

MMS121 — J. LECOMTE-BECKERS, L. TERZIEV, J.P. BREYER, Effect of austenite destabilisation heat treatment on graphite precipitation in chromium iron, in the Japan Institute of Metals Proceedings volume 12 ( JIMIC-3) of the PTM 99 conference – solid-solid phase transformations - Kyoto Japan- pp.1629 – 1633 –Ed.Koiwa and al.

MMS114 — J. LECOMTE-BECKERS, J. TCHOUFANG T., Study and Characterisation of Inclusions in Steels obtained from ESR and Conventionally Electrical Ingot Processes, proceedings of the annual meeting 1999 of the SBM society.

MMS115 — J. LECOMTE-BECKERS, J. TCHOUFANG T, Importance of  heat treatment procedure in the study and the characterization of impurities in high alloyed steel, Proceedings of the international COST517 workshop on cleaner metal for industrial exploitation Rez Czech republic 16-17 december 1999.p45,ED.EUR 19710 ISBN 92 828 8323 X

MMS130 — F.J.PEREZ, D.DUDAY ,M.P.HIERRO, C.GOMEZ,  J.LECOMTE-BECKERS, Y.GREDAY, Surface methods for cleaner steells:evaluation of inclusions and grain boundary segregations by electrochemical impedance spectroscopy, Proceedings of the international COST517 workshop on cleaner metal for industrial exploitation Rez Czech republic 16-17 december 1999.p33, ED.EUR 19710 ISBN 92 828 8323 X

MMS125 — A. MAGNEE, J. LECOMTE-BECKERS, Microstructure and abrasion resistance of tool steels reinforced by dispersed oxides and carbides phases, Proceedings of les journées d’automne de la société française de métallurgie et de matériaux, Paris- 17-19 octobre 2000. Revue de Métallurgie p.4/9.

MMS104 — L. DE COLNET, E. PIRARD,, J. TCHOUFANG TCHUINDJANG,, J. LECOMTE-BECKERS, R. GFHIRI, P. BOERAEVE,  S. CESCOTTO, Quantitative description of MC,M2C,M6C and M7C3 carbides in high speed steels rolls, proceedings of the MSMF-3 international conference held in Brno (june 27-29 2001) P 710 - edited by Pavel Sandera - Brno University of technology - COST ISBN 80 214 1892-3

MMS116 — J.LECOMTE-BECKERS, J. TCHOUFANG TCHUINDJANG, L. DE COLNET, E. PIRARD, R. GFHIRI, P. BOERAEVE, Effect of alumina and titanium nitrides on mechanical properties in high alloyed steels, proceedings of the MSMF-3 international conference held in Brno (june 27-29 2001) P 693 - edited by Pavel Sandera - Brno University of technology - COST ISBN 80 214 1892-3

MMS111 — J. LECOMTE-BECKERS, A.MAGNEE, Microstructural study of oxides and carbides used for abrasion properties in high alloys steels, proceedings of the international conference ICCE/8 held in Spain 5-8 aout 2001, P 527 - Ed david Hui College of engineering,University of New Orleans

MMS134 — J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, Microscopic determination of the nature of MC,M2C,M7C3(M6C) carbides in high-speed steels, proceedings of the annual meeting of SBM - décembre 2001

MMS135 — J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, Microscopic identification of MC,M2C,M7C3(M6C) carbides in high-speed steels, proceedings of the international conference JMM ( Joint Microscopic Meeting ) – juin 2002 – Lille; Ed. French Society for Microscopies.

MMS119 — J. LECOMTE-BECKERS, J. TCHOUFANG TCHUINDJANG, E.PIRARD, J.P BREYER, Physical metallurgy of a  HSS material for hot rolling mill rolls, proceedings of the 14th Rolling Conference-1st Conference on Uses of Steel, San Nicolas November 5 – 7, 2002-P 507- printedfor IAS by Imprenta Amalevi-Rosario-Argentina

MMS126 — P. MOUREAUX, S. MOTO MPONG, M. REMY, C. BOUFFIOUX, J. LECOMTE-BECKERS, A.M HABRAKEN, Identification d’une loi thermo-élasto-viscoplastique en vue de la modélisation du laminage à chaud du cuivre, colloque IME (Interaction Modèle Expérience) 2002 organisé par le laboratoire de mécanique appliquée de Besançon à l’occasion de son 40ième anniversaire – Pr11-361-368, Journal de Physique IV France 12 –2002 EDP Sciences, Les Ulis.

MMS113 — J. LECOMTE-BECKERS, A. RASSILI, M. ROBELET, Characterisation of thermophysical properties of semi-solid steels for thixoforming, proceedings of the conference S2P 2004-8th international conference on semi-solid processing

MMS127 — F.Pascon,S.Castagne,J.Lecomte-Beckers,A.M Habraken, Mesoscopic model of intergranular cracks in low carbon steel during cooling, proceedings of the 2nd international Conference of Thermomechanical processing of steelsTMP 2004 june 15-17 2004 ( liège-belgium)- P 233 -240Ed M.Lamberigts -Stahl Eisen ISBN 3-514-00704-7

MMS101 — C. Bouffioux, M. Carton, J. Lecomte-Beckers, A.M. Habraken, Study of the cooling process of an extruded aluminum profile, Numiform, June 2004.Materials Processing and Design: Modeling, Simulation and Applications, edited by Somnath Gosh, Jose M. Castro, June K. Lee in American Institute of Physics AIP Conference Proceedings 712  pp 1022-1027

MMS129 — E. Pecquet, R. Volles, J. Lecomte-Beckers, A.M Habraken, Lingopti project : semi-continuous casting process of copper-nickel alloys proceedings of  21st International Congress of Theoretical and Applied Mechanics, Warsaw - Poland, August 2004

MMS117 — J.LECOMTE-BECKERS, J.TCHOUFANG, R.ERNST, J.P.BREYER, Structural investigations of HSS rolls for hot strip mill, Proceedings of 41st Rolling seminar Processes, rolled and coated product October 2004-Joinville-Brasil- p 93 102-  Ed ABM Rua Antonio Comparato,218 Campo Belo SP Brasil.

MMS138 — J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, Melting and crystallisation behaviour of multi-component Fe-C-Cr-X alloys: microstructural aspects, proceedings of 13th European Microscopy congressAnvers August 2004

 

 

§               National Conference Proceedings

MMS107 — J.LECOMTE-BECKERS, Caractéristiques principales des alliages d’aluminium, - dans les proceedings de la chaire aluminium orgnisée par l’aluminium center belgium et le FNRS – tome 2 page 13- 30 – ed. aluminium center belgium 1999.

MMS128 — E.PECQUET, F.PASCON, J.LECOMTE-BECKERS, A.M.HABRAKEN, Lingopti project: Semi-Continuous Casting of Copper-Nickel Alloys Process, 6th National congress on theoretical and applied mechanics, Ghent, May26-27, 2003 NCTAM-2003-035 p1 à 5

MMS136 — J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, Study of complex carbides obtained after solidification and thermal treatment in High Speed Steels, Proceedings of les journées du 27 et 28 Mai 2003, SBP - BSP, Gand-Saint-Pierre 2003

MMS137 — J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, Inclusions and Carbides characterisation in High Speed Steels, Proceedings of la journée du 23 Mai 2003, SBM - BVM, Anvers 2003

 

 

§               Reports

MMS201 — J.LECOMTE-BECKERS, M.CARTON, REPORT N° N° 47: « Examen microstructural de l’alliage 2195 avant et après essais de traction superplastiques » (Sonaca), January 2004 - convention RW 981/3793

MMS202 — J.LECOMTE-BECKERS, M.CARTON, REPORT N° 50: « Caractérisation thermophysique du 42CD4 », January 2004 - convention RW 981/3793

MMS203 — J.LECOMTE-BECKERS, M.CARTON, REPORT N° 51 : « Examens métallographiques des éprouvettes de compression Akers », January 2004 - convention RW 981/3793

MMS204 — J.LECOMTE-BECKERS, M.CARTON, REPORT N° 52: « Examens métallographiques des éprouvettes de compression Industeel », January 2004 - convention RW 981/3793

MMS205 — J.LECOMTE-BECKERS, M.CARTON, REPORT N° 53: “Caractérisation de l'alliage 6082 de Hydroaluminium Raeren par analyse métallographique et  microscope électronique », January 2004 - convention RW 981/3793

MMS206 — J.LECOMTE-BECKERS, M.CARTON, REPORT N° 55: “Analyses métallurgiques du 2024 (TAC) », January 2004 - convention RW 981/3793

MMS207 — J.LECOMTE-BECKERS, M.CARTON, “ REPORT N° 61: « Détermination des caractéristiques de refroidissement du 42CD4 - comparaison des tests de trempe Petrofer et Ulg », January 2004 - convention RW 981/3793

MMS208 — J.LECOMTE-BECKERS, M.CARTON REPORT N° 62: « Examens métallographiques de l’alliage 2024 après essais de compression (TAC) », January 2004 - convention RW 981/3793

MMS209 — J. LECOMTE-BECKERS, M.CARTON, A.M. HABRAKEN, P. MOUREAUX, CH. BOUFFIOULX, Final report May 2004 - convention RW 981/3793

MMS210J. LECOMTE-BECKERS, report of activities N°4, June 2004 - convention RW 114877 INCA

MMS211J. LECOMTE-BECKERS, J.TCHOUFANG TCHUINDJANG, final report, November 2004 - convention RW 114877 INCA

MMS212 — J. LECOMTE-BECKERS, J.TCHOUFANG TCHUINDJANG, intermediate report N°19 : semester 4 – “Etude de la fusion et de la solidification par Analyse Thermique différentielle, d’alliages ICDP au départ de l’état Brut de coulée et de l’état trempé”, December 2003 - convention RW 114877 INCA

MMS213 — J. LECOMTE-BECKERS, J.TCHOUFANG TCHUINDJANG, intermediate report N°20 : semester 4 – “Analyses fractographiques sur alliages type HSS, après rupture en fatigue”, December 2003 - convention RW 114877 INCA

MMS214 — M.CARTON, J. LECOMTE-BECKERS, “Caractérisation thermique d'une céramique de chez Pechiney”, March 2004

MMS215 — M.CARTON, J. LECOMTE-BECKERS, “Caractérisation thermique de l'alliage 2024-T3 de la SABCA”, March 2004

MMS216 — M.CARTON, J. LECOMTE-BECKERS, “Détermination de la chaleur spécifique, de la diffusivité thermique et de la densité de 7 tôles d'acier de chez Arcelor (suite)”, May 2004

MMS217 — M.CARTON, J. LECOMTE-BECKERS, “Caractérisation thermique de la nuance d'aluminium 6005A T6”, July 2004, Simar, UCL

MMS218 — M.CARTON, J. LECOMTE-BECKERS, “Caractérisation thermique du HVS76 et d'un acier de la concurrence”, September 2004, GP

MMS219 — M.CARTON, J. LECOMTE-BECKERS, “Caractérisation thermique de 10 nuances d'Akers”, December 2004

MMS220 — Marc Carton, J. LECOMTE-BECKERS, “Détermination de la fraction liquide de deux nuances de chez magotteaux (acier forgé à 12% Cr et acier coulé à 18% Cr)”, December 2004

MMS221— J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, « Analyse de la fissuration d’une soudure sur des tôles pour chauffe-eau », MTS Benelux, February 2004

MMS222 — M.CARTON, J. LECOMTE-BECKERS, « Caractérisation thermique de l’alliage 2024-T3 », Sabca – March2004

MMS223 — M.CARTON, J. LECOMTE-BECKERS, « Caractérisation thermique d’une ceramique », Pechiney – March 2004

MMS224 — J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, « Analyse chimique et métallographique sur colonne et poutre pour chantier », fonds du logement de la region de BxL-capitale- March 2004

MMS225 — J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, « Analyse en microscopie électronique d’échantillons de tôle pour moteur primaire d’un centre d’usinage », Prof. Debongnie- April 2004

MMS226 — J. TCHOUFANG TCHUINDJANG, J. LECOMTE-BECKERS, « Analyse chimique et métallographique sur des boulons de fonderie » bureau expertise Pol Louis- Marechal – May 2004

 

 

§               Books or chapters in books

MMS106 — L. HABRAKEN, J. LECOMTE-BECKERS

          "Hot shortness and scaling of Copper containing steels"

          Copper in Iron and Steel, Edited by I. Le May and L. Mc. Schetky

          Chap. III, pp. 45-81 - Wiley & Sons (1982).

 

 

 

 

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le 6 juin 2006

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