Effect of (Ni,Mo) and (W,Ti)C on the Microstructure and Mechanical Properties of TiB2 Ceramic Tool Materials

被引：3
|
作者：
Yang, Tongchun [1 ,2 ]
Huang, Chuanzhen [1 ,2 ]
Liu, Hanlian [1 ,2 ]
Zou, Bin [1 ,2 ]
Zhu, Hongtao [1 ,2 ]
Wang, Jun [1 ,2 ]
机构：
[1] Shandong Univ, Sch Mech Engn, Ctr Adv Jet Engn Technol CaJET, Jinan 250061, Peoples R China
[2] Shandong Univ, Minist Educ, Key Lab High Efficiency & Clean Mech Manufacture, Jinan, Peoples R China
来源：
HIGH SPEED MACHINING V | 2012年 / 723卷
基金：
中国国家自然科学基金;
关键词：
TiB2 ceramic tool material; (W; Ti)C; (Ni; Mo); Microstructure; Mechanical property; TITANIUM DIBORIDE; SINTERING AID; DENSIFICATION; NITRIDE;
D O I：
10.4028/www.scientific.net/MSF.723.233
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
TiB2-(W,Ti)C composites with (Ni,Mo) as sintering additive have been fabricated by hot-pressing technique, and the microstructure and mechanical properties of the composites have been investigated. (Ni,Mo) promotes grain growth of the composites. In the case of 7vol.% (Ni,Mo), the grain size decreases consistently with an increase in the content of (W,Ti)C. When the proper content of (W,Ti)C is added to TiB2 composites, the growth of matrix grains is inhibited and the mechanical properties of the composites are improved. The best mechanical properties of the composites are 1084.13MPa for three-point flexural strength, 7.80MPa.m(1/2) for fracture toughness and 17.92GPa for Vickers hardness.
引用
收藏
页码：233 / +
页数：2
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