TiNi基形状记忆合金马氏体相变预现象研究进展  

Research Progress of Martensite Transformation Pre-phenomen on in TiNi-based Shape Memory Alloys

作　　者：蔡小英[1] 

机构地区：[1]延安职业技术学院机电工程系,陕西延安716000

出　　处：《吉林化工学院学报》2012年第7期1-4,共4页Journal of Jilin Institute of Chemical Technology

摘　　要：深入了解TiNi基形状记忆合金中特定马氏体相及复杂的多步相转变出现的原因,掌握TiNi基合金的马氏体相变规律,是开发和应用TiNi基形状记忆合金的前提.从弹性常数软化、声子软化及漫散射3个方面阐述了TiNi基形状记忆合金中的马氏体相变预现象,并将之与应变玻璃现象相区分.最后指出了TiNi基形状记忆合金马氏体相变的研究方向.In-depth understanding of the reasons why specific martensites and complicated multi-step phase transformations in TiNi-based shape memory alloys appear, and grasping of the law of martensitic transformation in TiNi-based alloys are the prerequisite for development and application of TiNi-based shape memory alloys. From the aspects of elastic constant softening, phonon softening and diffuse scattering, the premartensitic precursor phenomena in TiNi-based shape memory alloys are described. And it is also distinguished from strain glass. Finally, the research directions of martensitic transformation in TiNi-based shape memory alloys are pointed out.

关 键 词：TINI基形状记忆合金 马氏体相变预现象 马氏体相变 应变玻璃 

分 类 号：TG139.6[一般工业技术—材料科学与工程]