典型文献
Microstructure and Mechanical Properties of TiC-Reinforced Al-Mg-Sc-Zr Composites Additively Manufactured by Laser Direct Energy Deposition
文献摘要：
In order to refine the microstructure and improve the performance of direct energy deposited(DED)additively manufac-tured Al-Mg-Sc-Zr alloy,TiC-modified Al-Mg-Sc-Zr composites were prepared by DED and the effect of TiC content on the microstructure and performance was studied.In the absence of TiC particle,the microstructure of Al-Mg-Sc-Zr alloy prepared by DED consisted of fine grains with average size of 8.36 μm,and well-dispersed nano-Al3(Sc,Zr)particles inside the grains and Mg2Si phase along the grain boundaries.With the addition of 1 wt％TiC,the microstructure of TiC/Al-Mg-Sc-Zr prepared by DED became finer apparently compared with that without TiC;while the further increase of TiC content to 3 wt％,the microstructure of TiC/Al-Mg-Sc-Zr prepared by DED became coarser with appearance of a new kind of needle-like(Ti,Zr)5Si3 phase.Also,the addition of TiC decreased the porosity of Al-Mg-Sc-Zr prepared by DED.Simultaneously,after the addition of TiC,the tensile strength increased from 283.25 MPa to 344.98-361.51 MPa,and the elongation increased from 3.61％to 9.58-14.10％.The potential mechanism of the microstructure evolution and strength improvement was discussed.This research will provide new insights into the available metal matrix composites by laser additive manufacturing(LAM).
文献关键词：
中图分类号：
作者姓名：
Rong Xu;Ruidi Li;Tiechui Yuan;Hongbin Zhu;Ping Li
作者机构：
State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China;CRRC Industrial Academy Co.,Ltd,Beijing 100070,China
文献出处：
引用格式：
[1]Rong Xu;Ruidi Li;Tiechui Yuan;Hongbin Zhu;Ping Li-.Microstructure and Mechanical Properties of TiC-Reinforced Al-Mg-Sc-Zr Composites Additively Manufactured by Laser Direct Energy Deposition)[J].金属学报（英文版）,2022(03):411-424
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B类：
Microstructure,Mechanical,Properties,TiC,Reinforced,Sc,Zr,Composites,Additively,Manufactured,by,Laser,Direct,Energy,Deposition,In,order,refine,microstructure,performance,direct,energy,deposited,DED,additively,alloy,modified,composites,were,prepared,effect,content,was,studied,absence,consisted,grains,average,size,well,dispersed,nano,Al3,particles,inside,Mg2Si,phase,along,boundaries,With,addition,wt,became,finer,apparently,compared,that,without,while,further,coarser,appearance,new,kind,needle,like,5Si3,Also,decreased,porosity,Simultaneously,after,tensile,strength,increased,from,elongation,potential,mechanism,evolution,improvement,discussed,This,research,will,provide,insights,into,available,metal,matrix,laser,manufacturing,LAM
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0.489945
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