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金属学报  2006, Vol. 42 Issue (1): 93-98     
  论文 本期目录 | 过刊浏览 |
Ni52Ga28Fe20-xCox合金的马氏体相变和磁性转变
罗丰华 陈嘉砚 及川胜男 石田清仁
中南大学粉末冶金国家重点实验室; 长沙 410083
Martensitic Transformation and Magnetic Transition of Ni52Ga28Fe20-xCox Alloy
LUO Fenghua; CHEN Jiayan; OIKAWA Katsunari; ISHIDA Kiyohito
State Key Laboratory for Powder Metallurgy; Central South University; Changsha 410083
引用本文:

罗丰华; 陈嘉砚; 及川胜男; 石田清仁 . Ni52Ga28Fe20-xCox合金的马氏体相变和磁性转变[J]. 金属学报, 2006, 42(1): 93-98 .
, , , . Martensitic Transformation and Magnetic Transition of Ni52Ga28Fe20-xCox Alloy[J]. Acta Metall Sin, 2006, 42(1): 93-98 .

全文: PDF(838 KB)  
摘要: 利用金相和SEM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Ni52Ga28Fe20-xCox合金中Co元素含量x对马氏体相变和铁磁性转变的影响, 用粉末X射线衍射方法(XRD)分析马氏体相的结构类型。在x6的范围内Co代替Fe能够显著提高Ni52Ga28Fe20-xCox合金的马氏体相变温度, 对铁磁性转变Curie点的影响不大。 x每增加1可以使马氏体相变温度提高50---60 K。低温淬火(773 K/1 h)对Ni52Ga28Fe20-xCox合金马氏体相变温度的影响不大, 但使合金的Curie点提高20---30 K。粉末XRD分析表明该合金系列经1423和773 K两种温度处理后都只出现L10(2 M)马氏体。
关键词 铁磁性记忆合金Ni--Ga--Fe--Co合金    
Key words
收稿日期: 2005-04-25     
ZTFLH:  TG139.6  
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