典型文献
Tensile properties and deformation behavior of an extra-low interstitial fine-grained powder metallurgy near alpha titanium alloy by recycling coarse pre-alloyed powder
文献摘要：
An extra-low interstitial near alpha alloy Ti-3Al-2Zr-2Mo(wt％)was fabricated by hydrogenation and thermomechanical consolidation(TMC)of the coarse and spherical pre-alloyed powder with particle sizes of 60 to 270 μm.The coarse powder is a byproduct of pre-alloyed powder produced for selective laser and electron beam additive manufacturing.The TMC process involves powder compaction,fast sintering,in-situ dehydrogenation and an immediate hot extrusion to form a fully dense and fine-grained marten-sitic microstructure.Further dehydrogenation in vaccum at 700℃converted the martensitic microstruc-ture into an interwoven α/β microstructure which exhibited an improved yield strength,apparent neck-ing and premature cracking at grain boundary α(αGB)ribbons.A further annealing of 880℃/1 h/AC led to the formation of a fine-grained α/βt composite structure,which achieved an enhance ultimate tensile strength of 835 MPa and excellent tensile ductility of 16.0％.Analysis of the deformation behavior of the alloy in different states revealed that the α/βt composite structures brought about an enhanced strain hardening capability by heterogeneous deformation effect of hard βt and soft α-laths,which inhibited the formation of microcracks and consequently improved the coordinated deformation.
文献关键词：
中图分类号：
作者姓名：
H.R.Zhang;H.Z.Niu;M.C.Zang;Y.H.Zhang;S.Liu;D.L.Zhang
作者机构：
School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China
文献出处：
引用格式：
[1]H.R.Zhang;H.Z.Niu;M.C.Zang;Y.H.Zhang;S.Liu;D.L.Zhang-.Tensile properties and deformation behavior of an extra-low interstitial fine-grained powder metallurgy near alpha titanium alloy by recycling coarse pre-alloyed powder)[J].材料科学技术（英文版）,2022(34):96-107
A类：
marten,sitic
B类：
Tensile,properties,deformation,behavior,extra,low,interstitial,fine,grained,powder,metallurgy,near,alpha,titanium,recycling,coarse,alloyed,Ti,3Al,2Zr,2Mo,wt,was,fabricated,thermomechanical,consolidation,TMC,spherical,particle,sizes,byproduct,produced,selective,laser,electron,beam,additive,manufacturing,process,involves,compaction,fast,sintering,situ,dehydrogenation,immediate,hot,extrusion,fully,dense,microstructure,Further,vaccum,converted,martensitic,into,interwoven,which,exhibited,improved,yield,strength,apparent,neck,premature,cracking,boundary,ribbons,further,annealing,AC,composite,achieved,ultimate,tensile,excellent,ductility,Analysis,different,states,revealed,that,structures,brought,about,enhanced,strain,hardening,capability,heterogeneous,effect,soft,laths,inhibited,microcracks,consequently,coordinated
AB值：
0.565487
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