典型文献
Unravelling the competitive effect of microstructural features on the fracture toughness and tensile properties of near beta titanium alloys
文献摘要：
The competitive effect of microstructural features including primary α(αp),secondary α(αs),grain boundary α(αGB)and β grain size on mechanical properties of a near β Ti alloy were studied with two heat treatment processes.The relative effect of β grain size and STA(solution treatment and ageing)pro-cessing parameters on mechanical properties were quantitatively explored by the application of Taguchi method.These results were further explained via correlating microstructure with the fracture toughness and tensile properties.It was found that large numbers of fine αs precipitates and continuous αGB played greater roles than other features,resulting in a high strength and very low ductility(＜2％)of STA process samples.The β grain size had a negative correlation with fracture toughness.In the samples prepared by BASCA(β anneal slow cooling and ageing)process,improved ductility and fracture toughness were ob-tained due to a lower density of αs precipitates,a basket-weave structure and zigzag morphology of αGB.For this heat treatment,an increase in prior β grain size had an observable positive effect on fracture toughness.The contradictory effect of β grain size on fracture toughness found in literature was for the first time explained.It was shown that the microstructure obtained from different processes after β solu-tion has complex effect on mechanical properties.This complexity derived from the competition between microstructure features and the overall sum of their effect on fracture toughness and tensile properties.A novel table was proposed to quasi-quantitatively unravel these competitive effects.
文献关键词：
中图分类号：
作者姓名：
Yang Liu;Samuel C.V.Lim;Chen Ding;Aijun Huang;Matthew Weyland
作者机构：
Department of Materials Science and Engineering,Monash University,Clayton,VIC,3800,Australia;Monash Centre for Additive Manufacturing,Monash University,Notting Hill,VIC,3168,Australia;BAOWU Special Metallurgy Co.Ltd.,Shanghai,200940,China;Monash Centre for Electron Microscopy,Monash University,Clayton,VIC,3800,Australia
文献出处：
引用格式：
[1]Yang Liu;Samuel C.V.Lim;Chen Ding;Aijun Huang;Matthew Weyland-.Unravelling the competitive effect of microstructural features on the fracture toughness and tensile properties of near beta titanium alloys)[J].材料科学技术（英文版）,2022(02):101-112
A类：
BASCA
B类：
Unravelling,competitive,microstructural,features,fracture,toughness,tensile,properties,near,beta,titanium,alloys,including,primary,secondary,grain,boundary,size,mechanical,Ti,were,studied,two,heat,treatment,processes,relative,STA,solution,ageing,cessing,parameters,quantitatively,explored,by,application,Taguchi,method,These,results,further,explained,via,correlating,microstructure,It,was,found,that,large,numbers,fine,precipitates,continuous,played,greater,roles,than,other,resulting,high,strength,very,ductility,samples,had,negative,correlation,In,prepared,anneal,slow,cooling,improved,due,lower,density,basket,weave,zigzag,morphology,For,this,increase,prior,observable,positive,contradictory,literature,first,shown,obtained,from,different,after,has,This,complexity,derived,competition,between,overall,sum,their,novel,table,proposed,quasi,unravel,these,effects
AB值：
0.504613
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