The influence of carbon vacancies on the stacking fault energy of TiC

被引：19

作者：

Ding, Haimin ^{[1
]}

Fan, Xiaoliang ^{[1
]}

Chu, Kaiyu ^{[1
]}

Zhang, Xinchun ^{[1
]}

Liu, Xiangfa ^{[2
]}

机构：

[1] North China Elect Power Univ, Sch Energy Power & Mech Engn, Baoding 071003, Peoples R China

[2] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2014年 / 34卷 / 07期

关键词：

Density functional theory; Vacancies; Fault; MECHANICAL-PROPERTIES; TITANIUM CARBIDE; PHASE; AL; TEMPERATURE; SI;

D O I：

10.1016/j.jeurceramsoc.2014.01.013

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：

The influence of carbon vacancies on the stacking fault energy (SFE) of TiC has been studied. It is found that SFE of TiC is depending on positions and concentration of the carbon vacancies. The closer carbon vacancies to the stacking faults (SFs) and the higher the concentration are, the smaller SFE will be. In other words, carbon vacancies in TiC with SFs prefer to segregate around SFs. When TiC with a few carbon vacancies, carbon vacancies tend to be uniformly distributed around SFs, but if a lot of carbon vacancies exist, they will be long-range ordered around SFs. The study of the diffusion of carbon vacancies demonstrates that carbon vacancies can be more easily diffused in TiC with SFs, especially in the SF layers, which further confirms the above results. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：1893 / 1897

页数：5

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