典型文献
Highly ductile hypereutectic Al-Si alloys fabricated by selective laser melting
文献摘要：
In the endeavor to maximize the refinement effect of primary Si and alleviate the inherent brittleness of hypereutectic Al-Si alloy,the approach of coating P as a modifier on powder was adopted.The ulti-mate aim was to create more heterogeneous fine AlP nucleus and enhance the nucleation efficiency of primary Si on AlP to refine the coarse primary Si to nano-scale during 3D printing.In the combination of large undercooling and high density of nucleation sites,the size of primary Si was successfully refined to 200-300 nm and the divorced eutectic was also induced to modify the microstructure of matrix.In the presence of nano-scale primary Si,the melting pool boundary(MPB)feature disappeared and the fracture mechanism also changed from load transfer to interfacial fracture.Compared with the pristine alloy,the ductility was increased four times without significantly changing the ultimate tensile strength(UTS)and wear resistance.The improvement of ductility is attributed to the refinement of primary Si,the disappearance of MPB features and the formation of divorced eutectic.The optimal tensile properties were:UTS-482 MPa,yield strength-320 MPa and ductility of 8.1％at 0.05 wt.％P.These are comparable to those for high-strength Al alloys.
文献关键词：
中图分类号：
作者姓名：
Yafeng Yang;Kang Geng;Shaofu Li;Michael Bermingham;R.D.K.Misra
作者机构：
State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Mechanical and Mining Engineering,University of Queensland,Saint Lucia,Queensland 4072,Australia;Department of Metallurgical,Materials and Biomedical Engineering,University of Texas at El Paso,500 W University Avenue,El Paso,TX 79968,USA
文献出处：
引用格式：
[1]Yafeng Yang;Kang Geng;Shaofu Li;Michael Bermingham;R.D.K.Misra-.Highly ductile hypereutectic Al-Si alloys fabricated by selective laser melting)[J].材料科学技术（英文版）,2022(15):84-95
A类：
B类：
Highly,ductile,hypereutectic,Si,alloys,fabricated,by,selective,laser,melting,In,endeavor,maximize,refinement,effect,primary,alleviate,inherent,brittleness,approach,coating,modifier,powder,was,adopted,aim,create,more,heterogeneous,AlP,nucleus,enhance,nucleation,efficiency,coarse,nano,scale,during,printing,combination,large,undercooling,high,density,sites,size,successfully,refined,divorced,also,induced,modify,microstructure,matrix,presence,pool,boundary,MPB,disappeared,fracture,mechanism,changed,from,load,transfer,interfacial,Compared,pristine,ductility,increased,four,times,without,significantly,changing,ultimate,tensile,strength,UTS,wear,resistance,improvement,attributed,disappearance,features,formation,optimal,properties,were,yield,wt,These,comparable,those
AB值：
0.556025
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
