Structure and properties of FGM manufactured on the basis of HS6-5-2

• Autorzy: Matula G. , Dobrzański L. A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: It has been demonstrated in the paper structure and properties of tool gradient materials manufactured by powder metallurgy on the basis of high speed-steel HS6-5-2 type. Design/methodology/approach: Light microscope, SEM, image analysis, microhardness tests, density examination. Findings: Basing on the investigations of the HS6-5-2 type high-speed steels reinforced with ceramics particles fabricated with Powder Metallurgy it was found that density of sintered samples depend on reinforced particles, temperatures and atmosphere of sintering. Increasing of sintering temperature increase the density of sintering samples. Moreover the sintering under N2-10%H2 atmosphere produce samples with higher quality than using argon atmosphere and prevent of surface oxidation during sintering. Practical implications: The Powder Metallurgy gives the possibility to manufacturing tools gradient materials on the basis of high speed-steel which characterised very high hardness on the surface. Originality/value: In the paper the manufacturing of tool gradient materials on basis of high speed-steel reinforced with hard ceramics particles carried out in order to improve the tool cutting properties.

Słowa kluczowe

EN

high speed steels; functional gradient material; powder metallurgy; sintering

PL

stale szybkotnące; materiał funkcjonalnie gradientowy; metalurgia proszków; spiekanie

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 17, nr 1-2
• Strony: 101--104
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Matula G.

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

autor

Dobrzański L. A.

• Division of Materials Processing Technology 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] L.A. Dobrzański, G. Matula, A. Várez, B. Levenfeld, J.M. Torralba, Fabrication methods and heat treatment conditionseffect on tribological properties of high speed steels, Journal of Materials Processing and Technology 157-158, 2004, s. 324-330.
• [2] G. Matula, L.A. Dobrzański, A. Várez, B. Levenfeld, J.M. Torralba, Comparison of structure and properties of the HS12-1-5-5 type high-speed steel fabricated using the pressureless forming and PIM methods, Journal of Materials Processing Technology, Vols. 162-163, 2005, p. 230-235.
• [3] M. Collin, S. Norgren, Hardness gradients in WC-Cocreated by Local addition of Cr3C216th International Plansee Seminar, p. 277, 2005.
• [4] A. Eder, W. Lengauer, K. Dreyer, H. Van Den Berg, H.-W. Daub, D. Kassel, Phase Formation During Sintering of Functionally Graded Hardmetals, Plansee Seminar, p. 81, 2005.
• [5] Ruiz-Navas E.M, Garcia R., Gordo E., Velasco F.J., Development and characterization high-sped steel matrix composites gradient materials, Madrid 2006.
• [6] J. L. Johnson, R. M. German, Liquid Phase Sintering of Functionally Graded W-Cu Composites, 16th International Plansee Seminar, 2005.
• [7] A. Delanoe, J.M. Missiaen, C.H. Allibert, S. Lay, E. Pauty, Effects of the C potential and Cr doping on the densification of alloys WC-Co, 16th International Plansee Seminar, p. 642, 2005.
• [8] L.A. Dobrzański, E. Hajduczek, J. Marciniak, R. Nowosielski, Physical metallurgy and heat treatment of tool materials, WNT, Warszawa, 1990 (in Polish)