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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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定向凝固Ni-20Al-30Fe合金变形的TEM原位观察
, PP. 375-378
Keywords: 定向凝固,TEM,拉伸变形,原位观察
Abstract:
通过对定向凝固Ｎｉ－２０Ａｌ－３０Ｆｅ合金进行的ＴＥＭ原位拉伸观察得出,塑性γ相向脆性β相的形变形传递是促进Ｂ２结构β相进行塑性变形的内在机制.首次在该合金中观察到变形的相界弯折,相内的位错来自于这些相界弯折.两相间的变形传递并不限定在Ｋ－Ｓ关系中的平行晶面进行,位错同位界的作用过程,存在相界对位错吸收以及发射的现象.
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