DUAL-ION IRRADIATION EFFECTS ON MICROSTRUCTURE OF AUSTENITIC ALLOYS

被引：21

作者：

KATOH, Y

KOHNO, Y

KOHYAMA, A

机构：

[1] Department of Materials Science, The University of Tokyo, Bunkyo-ku, Tokyo, 113

来源：

JOURNAL OF NUCLEAR MATERIALS | 1993年 / 205卷

关键词：

D O I：

10.1016/0022-3115(93)90100-D

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An Fe-15Cr-20Ni ternary model alloy and a Type 316 stainless steel were irradiated by dual-ions at 1 to 50 appm of He/dpa ratios, to investigate the helium effects on microstructural development in austenitic alloys under irradiation. Quantitative analysis on resultant microstructures revealed that the Frank loop nucleation rate and the network dislocation density positively correlate and Frank loop growth rate negatively correlate with the He/dpa ratio, while the cavity growth rate has its peak at an intermediate helium injection rate. Although He/dpa dependence of various microstructural features were similar for the model alloy and the 316SS, the rates of their development and the mechanism which had assisted cavity growth were significantly different in these two materials.

引用

页码：354 / 360

页数：7

共 16 条

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