典型文献
Comparison of microstructure and mechanical behavior of Ti-35Nb manufactured by laser powder bed fusion from elemental powder mixture and prealloyed powder
文献摘要：
Although different types of powder feedstock are used for additive manufacturing via laser powder bed fusion(L-PBF),limited work has attempted to directly compare the microstructure and mechanical be-havior of components manufactured from those powder feedstock.This work investigated the microstruc-ture,phase composition,melt pool morphology,and mechanical properties of a prealloyed Ti-35Nb alloy manufactured using L-PBF and compared these to their counterparts produced from elemental powder mixture.The samples manufactured from the powder mixture are composed of randomly distributed undissolved Nb in the α/β matrix,resulting from the unstable melt pool during the melting of the pow-der mixture.By contrast,parts produced from prealloyed powder display a homogeneous microstructure with β and α"phases,owing to the full melting of prealloyed powder,therefore,a more stable melt pool to achieve a homogeneous microstructure.The Ti-35Nb manufactured from prealloyed powder ex-hibits large tensile ductility(about 10 times that of the counterparts using mixed powder),attributed to the high homogeneity in microstructure and chemical composition,strong interface bonding,relatively low oxygen content,and the existence of a large amount of β phase.This work sheds insights into un-derstanding the effect of powder feedstock on the melt pool stability therefore the microstructure and mechanical behavior of the resultant parts.
文献关键词：
中图分类号：
作者姓名：
J.C.Wang;Y.J.Liu;S.X.Liang;Y.S.Zhang;L.Q.Wang;T.B.Sercombe;L.C.Zhang
作者机构：
School of Engineering,Edith Cowan University,270 Joondalup Drive,Joondalup,Perth,WA 6027,Australia;School of Engineering,M050,The University of Western Australia,35 Stirling Highway,Crawley,Perth,WA 6009,Australia;Northwest Institute for Nonferrous Metal Research,Xi'an 710016,China;State Key Laboratory of Metal Matrix Composites,School of Material Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China
文献出处：
引用格式：
[1]J.C.Wang;Y.J.Liu;S.X.Liang;Y.S.Zhang;L.Q.Wang;T.B.Sercombe;L.C.Zhang-.Comparison of microstructure and mechanical behavior of Ti-35Nb manufactured by laser powder bed fusion from elemental powder mixture and prealloyed powder)[J].材料科学技术（英文版）,2022(10):1-16
A类：
prealloyed,undissolved
B类：
Comparison,microstructure,mechanical,behavior,Ti,35Nb,manufactured,by,laser,powder,bed,fusion,from,elemental,mixture,Although,different,types,feedstock,used,additive,manufacturing,via,PBF,limited,work,attempted,directly,components,those,This,investigated,composition,pool,morphology,properties,using,compared,these,their,counterparts,produced,samples,composed,randomly,distributed,matrix,resulting,unstable,during,melting,By,contrast,display,homogeneous,phases,owing,full,therefore,more,achieve,hibits,large,tensile,ductility,about,times,that,mixed,attributed,high,homogeneity,chemical,strong,interface,bonding,relatively,low,oxygen,content,existence,amount,sheds,insights,into,derstanding,effect,stability,resultant
AB值：
0.420362
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