Embrittlement of a Cr-Mo low-alloy steel due to low-temperature neutron irradiation

被引：0
|
作者：
Song, S.H. [1 ]
Weng, L.Q. [1 ]
机构：
[1] Department of Materials Science and Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
来源：
Acta Metallurgica Sinica (English Letters) | 2006年 / 19卷 / 01期
关键词：
Embrittlement - Mechanical properties - Neutron irradiation - Pressure vessels - Scanning electron microscopy - Yield stress;
D O I：
10.1016/S1006-7191(06)60019-7
中图分类号：
学科分类号：
摘要：
Embrittlement of a 2.25Cr1Mo steel stemming from neutron irradiation at 270°C is studied by virtue of small punch testing in conjunction with scanning electron microscopy. The ductile-brittle transition temperature determined by the small punch test is much lower than that determined by the standard Charpy test. There is some irradiation-induced embrittlement effect after the steel is irradiated for 46 days with a neutron dose rate of 1.05 × 10-8 dpa/s (displacement per atom per second).
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页码：20 / 26
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