版权说明 帮助中心
首页 > 成果 > 详情

Sintering behavior and mechanical properties of Cr3C2 doped ultra-fine WC-Co cemented carbides: Experment guided with thermodynamic calculations

SCI-E
认领
导出
Link by DOI
反馈
分享
QQ微信 微博
成果类型:
期刊论文
作者:
Tian, Haixia;Zhang, Mingyu*;Peng, Yingbiao*;Du, Yong*;Zhou, Peng
通讯作者:
Du, Yong;Peng, Yingbiao;Zhang, Mingyu
作者机构:
[Zhang, Mingyu; Tian, Haixia; Du, Yong] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China.
[Peng, Yingbiao] Hunan Univ Technol, Coll Met & Mat Engn, Zhuzhou 412007, Peoples R China.
[Zhou, Peng] Hunan Univ Sci & Technol, Hunan Prov Key Def Lab High Temp Wear Resisting M, Xiangtan 411201, Peoples R China.
通讯机构:
[Du, Yong; Zhang, Mingyu] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China.
[Peng, Yingbiao] Hunan Univ Technol, Coll Met & Mat Engn, Zhuzhou 412007, Peoples R China.
语种:
英文
关键词:
Cemented carbides;Thermodynamic calculations;Differential thermal analysis;Mechanical property
期刊:
International Journal of Refractory Metals and Hard Materials
ISSN:
0263-4368
年:
2019
卷:
78
页码:
240-246
文献类别:
WOS:Article
所属学科:
WOS学科类别:Materials Science, Multidisciplinary;Metallurgy & Metallurgical Engineering
入藏号:
基金类别:
National Natural Science Foundation of China [51601061, 51371199]
机构署名:
本校为通讯机构
院系归属:
冶金工程学院
摘要:
The influence of Cr3C2 doping on the sintering process and mechanical properties of WC-Co cemented carbides was studied. Using differential thermal analysis of green powders and thermodynamic calculations, the disappearing temperature of solid-state binder phase in the ultra-fine WC-Co cemented carbides with different amounts of Cr3C2 dopant was first investigated and then verified to descend with the increase of Cr content. Based on these investigations, the sintering temperatures of three alloys with 0.3, 0.5 and 0.65 wt% Cr were selected to high by 50 degrees C than the phase disappearing temperature of solid-state binder. Compared with the commercial sample with the sintering temperature at 1410 degrees C for Cr3C2 doped WC-Co cemented carbides, the optimized sintering temperatures lead to finer microstructures and better mechanical properties, such as transverse rupture strength and hardness. In addition, the reliability for the performance of WC-Co cemented carbides prepared with the optimized sintering schedule is significantly improved in comparison with the commercial sample. The strategy from the present work can be used to design sintering process parameters during the manufacture of ultrafine WC-Co cemented carbides.
参考文献:
Almond E. A., 1987, International Journal of Refractory & Hard Metals, V6, P137
Borgh I, 2014, INT J REFRACT MET H, V42, P30, DOI 10.1016/j.ijrmhm.2013.10.004
Danzer R., 1992, Journal of the European Ceramic Society, V10, P461, DOI 10.1016/0955-2219(92)90021-5
Danzer R, 2008, ADV ENG MATER, V10, P275, DOI 10.1002/adem.200700347
Elfwing M, 2005, INT J REFRACT MET H, V23, P242, DOI 10.1016/j.ijrmhm.2005.03.006

反馈

验证码:
看不清楚,换一个
确定
取消

成果认领

标题:
用户 作者 通讯作者
请选择
请选择
确定
取消

提示

该栏目需要登录且有访问权限才可以访问

如果您有访问权限,请直接 登录访问

如果您没有访问权限,请联系管理员申请开通

管理员联系邮箱:yun@hnwdkj.com