NiAlMn 高温形状记忆合金的结构有序化  

Structural Ordering of NiAlMn HighTemperature Shape Memory Alloy

作　　者：邹岷[1,2] 张春玲[1,2] 刘民治 戴受惠[1,2] 朱兴权[1,2] 盛钟琦 

机构地区：[1]中国核动力研究设计院核燃料及材料重点实验室 [2]四川联合大学

出　　处：《核动力工程》1997年第6期505-510,共6页Nuclear Power Engineering

摘　　要：根据室温Ｘ射线衍射分析的结果，探讨了ＮｉＡｌＭｎ高温形状记忆合金热弹性马氏体相变的机制，阐述了马氏体结构有序化的原因。用相关衍射线对晶面间距之差评定ＮｉＡｌＭｎ高温形状记忆合金的有序化程度，初步证明分级淬火处理（特别是６００℃分级淬火处理）有利于该合金结构的有序化。本文还给出了面心结构和３Ｒ堆垛结构米勒指数的关系式。　he mechanism of thermoelastic martensitic transformation and the martensitic structure in NiAlMn high temperature shape memory alloy are discussed in detail on base of room temperature Xray diffraction,then the reason of martensitic structural ordering is pointed out.The ordering level of NiAlMn high temperature shape memory alloy is evaluated by the differences between spacings of related diffraction pairs,and it is shown that stepped quenching is favorable for structural ordering of this alloy,typically 600℃ stepped quenching is.The relationship between facecentered and 3R structures is also given in this paper.　　

关 键 词：形状记忆合金 马氏体相变 有序度 镍铝锰 

分 类 号：TG139.6[一般工业技术—材料科学与工程]