Magnetic Properties of Thermally Aged Fe-Cu Alloys with Pre-deformation

被引：0

作者：

Yi LI ^{[1
,2
]}

Yuanfei LI ^{[1
]}

Ben XU ^{[1
]}

Qiulin LI ^{[2
]}

Guogang SHU ^{[3
]}

Wei LIU ^{[1
,2
]}

机构：

[1] School of Material Science and Engineering,Tsinghua University

[2] Graduate School at Shenzhen,Tsinghua University

[3] China Nuclear Power Engineering Co,Ltd

来源：

JournalofIronandSteelResearch(International) | 2016年 / 23卷 / 09期

关键词：

RPV steel; nondestructive evaluation; magnetic property; Cu-rich precipitate; dislocation;

D O I：

暂无

中图分类号：

TG115 [金属的分析试验（金属材料试验）]; TG113.22 [物理性能];

学科分类号：

080502 ;

摘要：

Magnetic properties of thermally aged Fe-Cu alloys with pre-deformation have been evaluated to improve the understanding of using magnetic technology for the nondestructive evaluation(NDE)of irradiation embrittlement in reactor pressure vessel(RPV)steels.Fe-Cu alloys with and without pre-deformation were thermally aged at 500 ℃ and the changes in microstructure,mechanical properties and magnetic properties were determined.It is found that the strain-induced dislocations recover and the Cu-rich particles precipitate during the aging process,and the magnetic properties variation depends on the combined influence of these two factors.From the point of view of NDE,a fully tempered or annealed microstructure is favorable before RPV is put into service.These results improve the understanding of magnetic property evolution in actual RPV steels and help to develop NDE theory for irradiation embrittlement.

引用

页码：981 / 987

页数：7

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