论文部分内容阅读
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。
Based on the results of X-ray diffraction analysis at room temperature, the mechanism of thermoelastic martensitic transformation of NiAlMn high temperature shape memory alloy was discussed, and the reason of martensite structure ordering was discussed. The order of degree of ordering of the NiAlMn high temperature shape memory alloy was evaluated by the difference between the diffraction lines and the interplanar spacing. It was initially proved that the classification quenching treatment (especially the 600 ℃ quenching treatment) is conducive to the ordering of the structure of the alloy. The paper also gives the relationship between the face-centered structure and the Miller index of 3R stacking structure.