EFFECT OF SOLUTE ELEMENTS ON DISLOCATION SUBSTRUCTURES DEVELOPED DURING HIGH-TEMPERATURE CREEP IN HIGH CHROMIUM HIGH NICKEL STEEL

被引：3

作者：

KONDO, Y

INAZUMI, T

TAKEYAMA, M

MATSUO, T

TANAKA, R

机构：

[1] TOKYO INST TECHNOL,FAC ENGN,TOKYO 152,JAPAN

[2] TOKYO INST TECHNOL,GRAD SCH,TOKYO 152,JAPAN

来源：

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1990年 / 76卷 / 02期

关键词：

D O I：

10.2355/tetsutohagane1955.76.2_246

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of nine solute elements on the dislocation substructures developed during high temperature creep in a 25Cr-35Ni austenitic steel was investigated by TEM at steady state stage at 900 and 1,000°C. Subgrain size does not seem to be an important substructural parameter which determines the creep resistance. The increase in dislocation density with increasing solute content correlated with the increase in frictional stress. The temperature dependence of the dislocation density became larger with the addition of solute elements, and the temperature and stress dependences of the dislocation density were the same as the temperature and stress dependences of the frictional stress.

引用

页码：246 / 253

页数：8

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