The effect of sintering temperature on mechanical properties of ultrafine WC-Co composites with addition of carbon

被引：0
作者：
Budin, S. [1 ]
Azmi, A. [1 ]
Rabilah, R. [1 ]
Selamat, M. A. [2 ]
Mahaidin, A. A. [2 ]
机构：
[1] Univ Teknol MARA, Fac Mech Engn, Jalan Permatang Pauh, Seberang Perai 13500, Penang, Malaysia
[2] SIRIM Berhad, Ctr Adv Mat Res Ctr, Lot 34,Jalan Hitech 2-3,Kulim Hitech Pk, Kulim 09000, Kedah, Malaysia
来源：
PROCEEDINGS OF MECHANICAL ENGINEERING RESEARCH DAY 2017 (MERD) | 2017年
关键词：
Ultrafine WC-Co; carbon addition; liquid phase sintering; CEMENTED CARBIDES; MICROSTRUCTURE;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
One of the crucial aspects in fabrication of fine-grained WC-Co using powder metallurgy route is during the sintering stage. Lower sintering temperature will lead to incomplete sintering while too high sintering temperature constituting the driving force for the grain growth process. The aim of this investigation was to study the optimum sintering temperature of ultrafine WC-Co with 0.2wt% carbon (C) addition. In this work, ultrafine-grained powder of WC, Co and C were used. Samples were fabricated through powder metallurgy route and sintered at three different temperatures, which are 1350 degrees C, 1400 degrees C and 1450 degrees C and soaked for 1 hour. The effect of carbon addition in the WC-Co composite towards the mechanical properties; hardness, transverse rupture strength, and microstructure formation at various sintering temperatures were examined. The results showed maximum hardness and TRS were obtained at the sintering temperature of 1400 degrees C.
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页码：322 / 323
页数：2
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