GRAIN-BOUNDARY SELF-DIFFUSION OF NI-63 IN AUSTENITIC NI-CR ALLOYS

被引：9

作者：

CERMAK, J

RUZICKOVA, J

机构：

[1] Institute of Physical Metallurgy, Academy of Sciences of the Czech Republic, 616 62 Brno

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1993年 / 172卷 / 1-2期

关键词：

D O I：

10.1016/0921-5093(93)90435-H

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The tracer diffusion of the isotope Ni-63 in Ni and three austenitic Ni-Cr alloys containing 9.8, 20.1 and 29.1 wt.% Cr have been studied from 853 to 1203 K using a residual activity method. It appears that, within the frames of experimental error, the activation enthalpy and pre-exponential factor do not depend on the composition of the alloys. The differences between the Arrhenius parameters obtained in this work for Ni diffusion and the analogous parameters published earlier for the diffusion of Fe and Cr in Ni-Fe-Cr alloys were discussed in terms of Ni, Fe and Cr interaction with C impurities.

引用

页码：153 / 157

页数：5

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