典型文献
Stabilized sub-grain and nano carbides-driven 1.2 GPa grade ultra-strong CrMnFeCoNi high-entropy alloy additively manufactured by laser powder bed fusion
文献摘要：
High-entropy alloys(HEAs)with interstitial atoms that are produced by additive manufacturing have gained intensive interest in the materials science community because of their suitability for construct-ing high-strength net-shape components.Here,a strategy to additionally enhance the strength of se-lective laser melted carbon-containing HEAs was investigated.The as-built carbon-containing HEAs(Cx(Cr20Mn20Fe20CO20Ni20)100-x(x=0.5 at.％,1.0 at.％,and 1.5 at.％))contain supersaturated carbon,and the extent of supersaturation increases as the carbon content increases.When subjected to aging treatment at 650℃for 1 h,the microstructure of the three alloys did not change at the grain scale.However,the mi-crostructure at the sub-grain scale changed markedly,and these changes influenced the tensile properties and deformation mechanism.In particular,the tensile strength of aged 1.5C-HEA at 650℃was～1.2 GPa at room temperature,which is higher than those reported for CrMnFeCoNi HEAs.Furthermore,the main deformation mechanism changed from deformation twinning to dislocation-mediated slip,resulting in much higher strain hardening capacity after the aging treatment.This work led to the development of an alternative promising method that involves tailoring the microstructure,to enhance the mechanical properties of additively manufactured metallic materials that contain interstitial atoms.
文献关键词：
中图分类号：
作者姓名：
Young-Kyun Kim;Kee-Ahn Lee
作者机构：
Department of Materials Science and Engineering,Inha University,Incheon 22212,Republic of Korea;Korea Institute of Materials Science(KIMS),Changwon 51508,Republic of Korea
文献出处：
引用格式：
[1]Young-Kyun Kim;Kee-Ahn Lee-.Stabilized sub-grain and nano carbides-driven 1.2 GPa grade ultra-strong CrMnFeCoNi high-entropy alloy additively manufactured by laser powder bed fusion)[J].材料科学技术（英文版）,2022(22):8-22
A类：
Cr20Mn20Fe20CO20Ni20,crostructure
B类：
Stabilized,grain,nano,carbides,driven,GPa,grade,ultra,strong,CrMnFeCoNi,entropy,additively,manufactured,by,laser,powder,bed,fusion,High,alloys,HEAs,interstitial,atoms,that,are,produced,manufacturing,have,gained,intensive,interest,materials,science,community,because,their,suitability,construct,strength,net,shape,components,Here,strategy,additionally,enhance,lective,melted,carbon,containing,was,investigated,built,Cx,supersaturated,extent,supersaturation,increases,content,When,subjected,aging,treatment,microstructure,three,did,not,scale,However,changed,markedly,these,changes,influenced,tensile,properties,deformation,mechanism,In,particular,aged,5C,room,temperature,which,higher,than,those,reported,Furthermore,main,from,twinning,dislocation,mediated,slip,resulting,much,strain,hardening,capacity,after,This,work,led,development,alternative,promising,method,involves,tailoring,mechanical,metallic
AB值：
0.581158
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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。
