Influence of binder composition on structure and properties of carbide alloyed composite manufactured with the PIM method

• Autorzy: Matula G.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Influence of binder composition, debinding and sintering conditions on structure and some selected properties of the M2 type injected high speed-steel with 10% of carbides are demonstrated in the paper. Design/methodology/approach: Torque-load test, rheological tests, microstructure examination, density examination. Findings: Examination of the effect of the binder type and portion on structure and properties of the experimental tool materials with the cermets structure revealed that using the stearic acid not only reduces viscosity, thus improving technological properties of the feedstock, but also extend range of the optimum sintering temperature of the investigated cermets ensuring high density and homogeneous structure. Increasing of sintering temperature increase the density of sintering samples. Practical implications: It is expected that further investigations of these materials will make possible their injection moulding, as well as their heat treatment increasing hardness and strength of matrix and thereby of the whole tool material. The Powder Injection Moulding gives the possibility to manufacturing tools materials on the basis of high speed-steel which characterised very good properties with their final or near net shape. Originality/value: In the paper the using injection of the polymer-powder mix gives the possibility to fabricate carbide alloyed composite which, with their structure and mechanical properties, fill the gap in tool materials between the high-speed steels and cemented carbides.

Słowa kluczowe

EN

powder metallurgy; powder injection; feedstock; tool materials

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 30, nr 2
• Strony: 193--196
• Opis fizyczny: Bibliogr. 13 poz., wykr.

Twórcy

autor

Matula G.

• Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

• [1] Z. Y. Liu, N. H. Loh, K. A. Khor, S.B. Tor, Sintering of injection molded M2 high-speed steel, Materials Letters 45/1 (2000) 32-38.
• [2] G. Matula, L. A. Dobrzański, Structure and properties of FGM manufactured on the basic of HS6-5-2, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 101-104.
• [3] G. Matula, L. A. Dobrzański, A. Várez, B. Levenfeld, Development of a feedstock formulation based on PP for MIM of carbides reinforced M2, Journal of Achievements in Materials and Manufacturing Engineering 27/2 (2008) 195-198.
• [4] G. Herranz, B. Levenfeld, A. Várez, J. M. Torralba, Development of new feedstock formulation based on high density polyethylene for MIM of M2 high speed steel, Powder Metallurgy 48/2 (2005) 134-138.
• [5] X. Qu, J. Gao, M. Qin, Ch. Lei, Application of a wax-based binder in PIM of WC-TiC-Co cemented carbides, International Journal of Refractory Metals and Hard Materials 23 (2005) 273-277.
• [6] M. Rosso, Ceramic and metal matrix composites: Routes and properties, Journal of Materials Processing Technology 175 (2006) 364-375.
• [7] E. M. Ruiz-Navas, R. Garcia, E. Gordo, F. J. Velasco, Development and characterisation of high-speed steel matrix composites gradient materials, Journal of Materials Processing Technology 143-144 (2003) 769-775.
• [8] B. Šuštaršic, L. Kosec, M. Kosec, B. Podgornik, S. Dolinšek, The influence of MoS2 additions on the densification of water-atomized HSS powders, Journal of Materials Processing Technology 173/3 (2006) 291-300.
• [9] A. Varez, B. Levenfeld, J. M. Torralba, G. Matula, L. A. Dobrzański, Sintering in different atmospheres of T15 and M2 high speed steels produced by modified metal injection moulding process, Materials Science and Engineering 366/2 (2004) 318-324.
• [10] Z. Xiao, T. L. Ngai, M. Shao, Y. Li, Manufacturing of a NbC Particulate Reinforced P/M Iron-base Valve-guide Cup, Materials Science Forum 532-533 (2006) 5-8.
• [11] L. A. Dobrzański, G. Matula, J. M. Torralba, B. Levenfeld, A. Várez, Structure and properties of high speed steels formed from powders, Proceedings of the 11th International Scientific Conference “Achievements in Mechanical and Materials Engineering” AMME'2002, Gliwice-Zakopane, 2002, 119-124.
• [12] L. A. Dobrzański, G. Matula, G. Herranz, A. Várez, B. Levenfeld, J. M. Torralba, Injection Moulding of HS12-1-5-5 high-speed using a PW-HDPE based binder, Proceedings of the 12th International Scientific Conference “Achievements in Mechanical and Materials Engineering” AMME'2003, Gliwice-Zakopane, 2003, 237-240.
• [13] R. M. German, A. Bose, Injection Molding of Metals and Ceramics, MPIF, Princeton, 1997.