典型文献
Dependence of mechanical behavior on grain size of metastable Ti-Nb-O titanium alloy
文献摘要：
Cold-rolled metastable β-type Ti-38Nb-0.2O alloy was subjected to annealing treatment to obtain different pre-cipitates and grain sizes.The influence of annealing on microstructure and mechanical properties was investi-gated.The alloy annealed at 673 K or 773 K exhibited a single-stage yielding with high strength and low uniform elongation,due to the residual work hardening and the precipitation of ω or α phases.The alloy annealed at above 873 K exhibited an obvious double yielding behavior resulting from the stress-induced martensitic trans-formation.The grain growth kinetics of single β phase alloy is sensitive to temperature,and it is suggested that the existence of oxygen decreases the grain growth exponent and increases the required activation energy for grain growth.The critical stress for slip decreased monotonously with the increase of grain size,following the classic Hall-Petch relationship.However,the critical stress for martensitic transformation decreased to a minimum and then increased again,as the grain size increased.The results are worth for design of the heat-treatment parameters of the Ti-38Nb-0.2O alloy for engineering applications.
文献关键词：
中图分类号：
作者姓名：
Junshuai Wang;Wenlong Xiao;Yu Fu;Lei Ren;Chaoli Ma
作者机构：
Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education,School of Materials Science and Engineering Beihang University,Beijing,100191,China;Yunnan Innovation Institute of Beihang University,Kunming Yunnan,650000,China
文献出处：
引用格式：
[1]Junshuai Wang;Wenlong Xiao;Yu Fu;Lei Ren;Chaoli Ma-.Dependence of mechanical behavior on grain size of metastable Ti-Nb-O titanium alloy)[J].自然科学进展·国际材料（英文）,2022(01):63-71
A类：
38Nb,cipitates
B类：
Dependence,mechanical,behavior,grain,metastable,Ti,titanium,alloy,Cold,rolled,type,2O,was,subjected,annealing,treatment,obtain,different,sizes,influence,microstructure,properties,investi,gated,annealed,exhibited,single,stage,yielding,high,strength,uniform,elongation,due,residual,work,hardening,precipitation,phases,above,obvious,double,resulting,from,stress,induced,martensitic,growth,kinetics,sensitive,temperature,suggested,that,existence,oxygen,decreases,exponent,increases,required,activation,energy,critical,slip,decreased,monotonously,following,classic,Hall,Petch,relationship,However,transformation,minimum,then,increased,again,results,are,worth,design,heat,parameters,engineering,applications
AB值：
0.526482
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