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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Co41Ni32Al27-xSix合金的马氏体相变和磁性转变
, PP. 680-684
Keywords: 铁磁性记忆合金,Co--Ni--Al--Si合金
Abstract:
利用金相显微组织分析技术、示差扫描量热法(DSC)和振动磁力计(VSM),考察了Co41Ni32Al27-xSix合金中Si元素含量x对马氏体相变和铁磁性转变的影响,用X射线衍射方法分析马氏体相的结构类型.增加x能够显著提高合金的马氏体相变温度,并且同时提高铁磁性转变Curie点；在x<5的范围内,x增加1可以造成马氏体相变温度提高50---60K,同时Curie点提高大约10K；马氏体相的晶体结构仍然是L10型有序结构,但是随着$x$的增加,单胞体积减小.讨论了马氏体相变温度和Curie点同时提高的原因.
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