Numerical simulation of intermediate phase growth in Ti/Al alternate foils

被引：24

作者：

Liu Jiang-ping ^{[1
]}

Luo Liang-shun ^{[1
]}

Su Yan-qing ^{[1
]}

Xu Yan-jing ^{[1
]}

Li Xin-zhong ^{[1
]}

Chen Rui-run ^{[1
]}

Guo Jing-jie ^{[1
]}

Fu Heng-zhi ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 15001, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2011年 / 21卷 / 03期

基金：

中国国家自然科学基金;

关键词：

hot pressing; diffusion couple; TiAl3; finite difference method; numerical simulation; TI-AL SYSTEM; DIFFUSION COUPLES; THIN-FILM; INTERDIFFUSION; NUCLEATION; PREDICTION; INTERFACES; KINETICS; ALLOYS; MODEL;

D O I：

10.1016/S1003-6326(11)60756-5

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

To investigate the diffusion reaction between Ti/Al solid diffusion couple, Ti/Al alternate foils formed by hot pressing were annealed at 525, 550, 575 and 600 degrees C for time ranging from 1 to 40 h. The experimental results show that TiAl3 was the only observed phase at Ti/Al interface. The interface thermodynamics favored the preferential formation of TiAl3 in Ti/Al couple. The growth of TiAl3 layer occurred mainly towards Al foil side and exhibited a parabolic law. Using the interdiffusion coefficients calculated based on the contribution of grain boundary diffusion, the growth of TiAl3 was simulated numerically with the finite difference method, and the simulated results were in good agreement with the experimental ones.

引用

页码：598 / 603

页数：6

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