典型文献
Multi-scale defects in powder-based additively manufactured metals and alloys
文献摘要：
Defect formation is a critical challenge for powder-based metal additive manufacturing(AM).Current un-derstanding on the three important issues including formation mechanism,influence and control method of metal AM defects should be updated.In this review paper,multi-scale defects in AMed metals and alloys are identified and for the first time classified into three categories,including geometry related,surface integrity related and microstructural defects.In particular,the microstructural defects are further divided into internal cracks and pores,textured columnar grains,compositional defects and dislocation cells.The root causes of the multi-scale defects are discussed.The key factors that affect the defect for-mation are identified and analyzed.The detection methods and modeling of the multi-scale defects are briefly introduced.The effects of the multi-scale defects on the mechanical properties especially for ten-sile properties and fatigue performance of AMed metallic components are reviewed.Various control and mitigation methods for the corresponding defects,include process parameter control,post processing,alloy design and hybrid AM techniques,are summarized and discussed.From research aspect,current research gaps and future prospects from three important aspects of the multi-scale AM defects are iden-tified and delineated.
文献关键词：
中图分类号：
作者姓名：
J.Fu;H.Li;X.Song;M.W.Fu
作者机构：
Department of Mechanical Engineering,The Hong Kong Polytechnic University,Hung Hom,Kowloon,Hong Kong,China;State Key Laboratory of Solidification Processing,School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China;Department of Mechanical and Automation Engineering,Chinese University of Hong Kong,Shatin,Hong Kong,China
文献出处：
引用格式：
[1]J.Fu;H.Li;X.Song;M.W.Fu-.Multi-scale defects in powder-based additively manufactured metals and alloys)[J].材料科学技术（英文版）,2022(27):165-199
A类：
AMed
B类：
Multi,scale,defects,powder,additively,manufactured,metals,alloys,Defect,formation,critical,challenge,manufacturing,Current,un,derstanding,three,important,issues,including,mechanism,influence,control,should,be,updated,In,this,paper,multi,are,identified,first,classified,into,categories,geometry,related,surface,integrity,microstructural,particular,further,divided,internal,cracks,pores,textured,columnar,grains,compositional,dislocation,cells,root,causes,discussed,key,factors,that,affect,analyzed,detection,methods,modeling,briefly,introduced,effects,mechanical,properties,especially,ten,sile,fatigue,performance,metallic,components,reviewed,Various,mitigation,corresponding,include,parameter,post,processing,design,hybrid,techniques,summarized,From,research,current,gaps,future,prospects,from,aspects,delineated
AB值：
0.543307
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