Carbon diffusion paths in Ni-Ta-C system

被引：0

作者：

Richu Wang

Libin Liu

Zhanpeng Jin

机构：

[1] Central South University of Technology,Department of Materials Science and Engineering

来源：

Journal of Central South University of Technology | 1998年 / 5卷 / 2期

关键词：

diffusion path; diffusion couple; Ni-Ta-C; phase diagram; stability diagram;

D O I：

10.1007/s11771-998-0041-8

中图分类号：

学科分类号：

摘要：

Electron probe microanalysis and SEM were employed to study the phase equilibria and diffusion paths in C-Ni8Ta, C-Ni3Ta, C-Ni2Ta diffusion couples after annealed at 1100 °C for 120 h or at 1200 °C for 120 h and then at 1100 °C for 24 h. Attempt was made to use the calculated stability diagram of carbon activity to explain the experimental observations. The phases formed in the diffusion layers were all in the prediced ranges.

引用

页码：82 / 85

页数：3

共 6 条

[1] Jackson M R(1977)Composites of γ+TaC in Ni-Ta-C ternary system Metall Trans 8A 905-913
[2] Fernandez Guillerment A(1988)Thermodynamic properties of the Fe-Co-Ni-C system Z Metallkde 79 524-536
[3] Ansara I(1994)Thermodynamic analysis of the Ni-Ta system CALPHAD 18 99-107
[4] Selleby M(1996)Gibbs energy coupling of phase diagram and thermochemistry in the tantanum-carbon system J Alloys Compounds 238 167-179
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[6] Fernandez Guillerment A(undefined)undefined undefined undefined undefined-undefined

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