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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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奥氏体Fe-Mn合金的低温脆性
, PP. 24-29
Keywords: 低温脆性,偏析,晶界,相变
Abstract:
奥氏体型合金一般具有优良的低温韧性.本文对奥氏体Fe-Mn合金低温变脆现象进行了研究.实验结果肯定了低温下有冷脆倾向;指出随Mn含量增多,冷脆转变温度增高,呈沿晶脆断;发现Mn沿晶界偏聚,且Mn含量愈高偏析程度愈大;初步分析了晶界Mn富集造成冷脆的因素;未能证实前人提到的可能引起低温变脆的-100℃时面心立方→面心四方相变的存在.
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