Effect of Ta, Nb and V Additions on the Microstructure and Mechanical Properties of (W,Ti)C-Co

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Abstract:

(W,Ti)C-10%Co system cermets doped with Ta, Nb or V grain growth inhibitor were prepared in this work. The effect of Ta, Nb and V on the microstructure and mechanical properties of (W0.8783Ti0.0976VB0.0242)C-10%Co systems was investigated. The results show that the three elements play an important role on the WC grain growth and shape; the cermets appeared uniformly distributed as whiskers or thin platelets. V results in the hardest material, Ta causes the material to become harder compared with (W0.9Ti0.1)C-10%Co cermets. But the hardness of cermets with Nb addition decrease because of the increasing of porosity.

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Periodical:

Advanced Materials Research (Volumes 535-537)

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783-786

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June 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] S.G. Huang, R.L. Liu. Int. Journal of Refractory Metals & Hard Materials 26(2008): 389-395.

Google Scholar

[2] Z.G. Ban, L. L. Shaw. Journal of Materials Science 37 (2002) 3397-3403..

Google Scholar

[3] Z. Zak Fang, Xu Wang, Taegong Ryu, Kyu Sup Hwang, H.Y. Sohn. Int. Journal of Refractory Metals & Hard Materials 27 (2009) 288–299.

Google Scholar

[4] G. Henkelman, G.Johannesson and H. Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D. Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000).

Google Scholar

[5] Moonsu Seo, Jiwoong Kim, Shinhoo Kang. Int. Journal of Refractory Metals and Hard Materials 29 (2011):424-428.

Google Scholar

[6] Jonathan Weidow, Susanne Norgren, Hans-Olof Andrén. Int. Journal of Refractory Metals and Hard Materials 27 (2009):817-822.

DOI: 10.1016/j.ijrmhm.2009.02.002

Google Scholar

[7] Hyomoon Nam, Jaehyuk Lim, Shinhoo Kang. Materials Science and Engineering A 527 (2010) 7163–7167.

Google Scholar

[8] Youngjae Kang, Shinhoo Kang. Journal of the European Ceramic Society 30 (2010) 793–798.

Google Scholar