典型文献
Heat treatment of hot-isostatic-pressed 60NiTi shape memory alloy:Microstructure,phase transformation and mechanical properties
文献摘要：
60NiTi alloy is considered to be a promising material for specialized bearing and gear applications due to its high hardness,strength,and low modulus.However,fabricating 60NiTi through conventional pro-cessing methods is challenging due to the brittleness and poor workability.In this study,60NiTi with high relative density was successfully fabricated directly from pre-alloyed powder through hot isostatic pressing.The effects of solution and aging treatments on microstructure and mechanical properties were systematically studied by advanced characterization techniques.The hot-isostatic-pressed 60NiTi showed low average hardness and elastic strain due to the formation of a soft Ni3Ti phase and B2 NiTi matrix.Solution treatment above 1000℃dissolved the Ni3Ti phase and promoted the formation of nanoscale Ni4Ti3 precipitates,which significantly improved the hardness,strength,and elastic strain of 60NiTi.The formation of the Ni4Ti3 phase can be mainly attributed to the driving forces induced by the chemical su-persaturation and mechanical stress concentration.Finally,the phase transformation mechanisms during heat treatment and compression test were discussed.
文献关键词：
中图分类号：
作者姓名：
Yinghao Zhou;Xiyu Yao;Wenfei Lu;Dandan Liang;Xiaodi Liu;Ming Yan;Jun Shen
作者机构：
College of Mechatronics and Control Engineering,Shenzhen University,Shenzhen 518060,China;Department of Materials Science and Engineering,Shenzhen Key Laboratory for Additive Manufacturing of High-performance Materials,Southern University of Science and Technology,Shenzhen 518055,China
文献出处：
引用格式：
[1]Yinghao Zhou;Xiyu Yao;Wenfei Lu;Dandan Liang;Xiaodi Liu;Ming Yan;Jun Shen-.Heat treatment of hot-isostatic-pressed 60NiTi shape memory alloy:Microstructure,phase transformation and mechanical properties)[J].材料科学技术（英文版）,2022(12):124-135
A类：
persaturation
B类：
Heat,hot,isostatic,pressed,60NiTi,shape,memory,Microstructure,phase,transformation,mechanical,properties,considered,promising,material,specialized,bearing,gear,applications,due,its,high,hardness,strength,low,modulus,However,fabricating,through,conventional,cessing,methods,challenging,brittleness,poor,workability,In,this,study,relative,density,was,successfully,fabricated,directly,from,alloyed,powder,pressing,effects,solution,aging,treatments,microstructure,were,systematically,studied,by,advanced,characterization,techniques,showed,average,elastic,strain,soft,Ni3Ti,B2,matrix,Solution,above,dissolved,promoted,nanoscale,Ni4Ti3,precipitates,which,significantly,improved,mainly,attributed,driving,forces,induced,chemical,stress,concentration,Finally,mechanisms,during,heat,compression,test,discussed
AB值：
0.570906
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