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材料工程  2007 

Cu对Co41Ni33Al26合金马氏体相变和磁性转变的影响

Keywords: Co-Ni-Al-Cu合金,马氏体相变,Curie点

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Abstract:

采用金相显微技术、DSC、VSM方法,研究了Cu含量x(x=3,5,8)对Co41Ni33Al26合金马氏体相变和Curie点的影响。结果发现在x≤5%范围内,Co41Ni33-xAl26Cux合金马氏体相变温度与x的关系成直线变化,x每增加1%,马氏体相变温度降低约44K;其Curie点随x增加而缓慢下降,x每增加1%,Curie点约降低3.6K。与L10马氏体结构的Co41Ni33-xAl26Cux(x=0,3,5)合金相比,具有B2结构的Co41Ni25Al26Cu8合金易磁化,并且饱和磁化强度低。

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