Microstructure and mechanical properties of TiN-based cermet reinforced by Cr3C2 addition

被引：4

作者：

Wu, Yuxue ^{[1
]}

Xiong, Huiwen ^{[1
]}

Gan, Xueping ^{[1
]}

Li, Zhiyou ^{[1
]}

Zhou, Kechao ^{[1
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha, Hunan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2019年 / 16卷 / 03期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Cr3C2; content; mechanical properties; microstructure; TiN-based cermet; TITANIUM NITRIDE; N)-BASED CERMETS; BEHAVIOR; TI(C; NI; METAL;

D O I：

10.1111/ijac.13098

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

TiN-based cermets with different Cr3C2 addition were prepared by conventional vacuum sintering. Effect of Cr3C2 on microstructure and properties of TiN-based cermets were discussed. Owing to the formation of sound rims on TiN cores, ultrafine TiN-based cermets with more uniform microstructure and finer grains were obtained with 1 wt% Cr3C2. When the added Cr3C2 content enhanced from 0 to 2 wt%, the transverse rupture strength (TRS) and fracture toughness increased firstly and then decreased, while the hardness increased monotonically. For the experimental conditions considered, the cermet with 1 wt% Cr3C2 addition had optimal combination of hardness (91HRA), fracture toughness (14.7 MPa m(1/2)) and TRS (2123 MPa).

引用

页码：1184 / 1192

页数：9

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