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and plasticity. The fracture mode is ductile fracture. Key words: superelasticity; martensitic phase transformation; TiTa alloy; tensile property; digital image correlation Foundation item: Project... V, KOVNERISTY K, SANADZE V V. Phase-transformation in metastable alloys of the Ti-Ta system during heating[J]. Physics of Metals and Metallography, 1986, 62: 109-113. [21] 金万军. 生物医用Ti-Ta基合金的形状记忆效应和力学......
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MATHEMATICAL MODELLING OF PHASE TRANSFORMATION FROM HOT-DEFORMED AUSTENITE IN LOW CARBON STEELS X.H.Liu1,Y.B.Xu1,G.D.Wang1 (1.State Key Laboratory of Rolling And Automation, Northeastern University... steel were predicted considering both undeformed and deformed conditions. The influence of deformation on phase equilibria and transformation incubation period was evaluated quantitatively......
Solidification pathway and phase transformation behavior in a beta-solidified gamma-TiAl based alloyH.Xu1,2,X.B.Li1,W.W.Xing1,L.Shu1,Y.C.Ma1,K.Liu11. Institute of Metal Research,Chinese Academy of Sciences摘 要:The phase transformation behavior of an as-cast Ti-42Al-5 Mn(at.%) alloy after subsequent quenching from 1380 ℃ to 1000 ℃ was investigated based......
of Physics, Nanjing University, Nanjing, 210093, China) Abstract: Both the phase transition strain and magnetic-field-induced strain during martensitic transformation in Ni46Cu4Mn38Sn12 Heusler alloy were investigated by structure, magnetic, and strain measurements. The results show that a large spontaneous strain with the value of about 0.12% upon martensitic transformation is observed......
高锰TRIP钢的形变诱导马氏体相变及加工硬化行为张维娜1,刘振宇1,王国栋1(1.辽宁省沈阳市东北大学轧制技术及连轧自动化国家重点实验室)摘 要:对2种不同成分的高锰TRIP钢(15Mn-4Si-2Al和20Mn-4Si-2Al)热轧后进行热处理实验.结果表明,增加固溶处理的保温时间,可以获得不同的显微组织并提高高锰TRIP钢的强塑积.分析了不同的热处理条件下,2种高Mn钢在拉伸变形过程中加工硬化速率随真应变的变化关系.利用TEM技术研究了高锰TRIP钢中马氏体相变的特点,确定相变途径为γ→ε→α′和γ→α′,......
% to 1.76%. The increase of the strength is mainly due to stress-induced martensitic transformation from a cubic B2 phase to a monoclinic martensite phase, which imparts an appreciable work-hardening...Trans. Nonferrous Met. Soc. China 25(2015) 850-855 Effects of Co and Al addition on martensitic transformation and microstructure in ZrCu-based shape memory alloys Wei-hong GAO, Xiang-long MENG, Wei......
martensitic transformation nor reverse transformation can be observed in the range from-150 to 150 ℃. On the one hand, the phase transformation temperature is probably out of the scope of the present experimental temperature. On the other hand, the addition of Fe element probably suppresses first-order martensitic transformation or reverse transformation, and consequently the second-order-like phase......
; ordering; phase transformation; [全文内容正在添加中] ...Phase Separation Process at Early Aging Stage of Ni42CrTiAl Jiao shao-yang1,XU Bing-she1,HU lan-qing1,WEI Ying-hui1,HOU Li-feng1 (1.Taiyuan University of Technology, Taiyuan, China) 摘要:Phase......
is mainly dependent on the migration distance of the atoms in β grains during the period of martensitic transformation. When the migration distance is relatively longer, α′ phase is formed... of alloying element. The martensitic transformation takes place in the order of bcc → orthorhombic → hcp. The orthorhombic α″ phase is a transitional form in the process of α′ martensitic transformation......