典型文献
Superb strength and ductility balance of a Co-free medium-entropy alloy with dual heterogeneous structures
文献摘要：
In present work,we successfully fabricated a novel Co-free non-equiatomic Ni46Cr23Fe23Al4Ti4 medium-entropy alloy with dual heterogeneous structures,i.e.three-levels grain structures and heterogeneous L1 2 precipitates.Experimental results revealed the dual heterogeneous structures lead to remarkable strength-ductility synergy properties in this Co-free medium-entropy alloy,showing high yield strength and ultimate tensile strength of～1203 MPa and～1633 MPa,respectively,remaining an excellent duc-tility of～28.7％.Further analyses about strengthening and deformation mechanisms indicated precipi-tation hardening and hetero-deformation induced hardening contribute the majority strength enhance-ment,meanwhile deformation-induced hierarchical stacking-faults networks,high density Lomer-Cottrell locks and microstructure features of heterogeneous grains and precipitates substantially facilitate the high work-hardening capacity and excellent tensile ductility.This work not only offers fundamental under-standing of the strength and deformation mechanisms of the dual heterogeneous structural material,but also provides useful strength design strategy for low-price high performance high/medium-entropy alloys
文献关键词：
中图分类号：
作者姓名：
Wenjie Lu;Kang Yan;Xian Luo;Yuetang Wang;Le Hou;Pengtao Li;Bin Huang;Yanqing Yang
作者机构：
State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China;Langu Institute for Materials Analysis Co.Ltd,Weihai 264207,China;Institute of optics and electronics,Chinese Academy of Sciences,Chengdu 610200,China
文献出处：
引用格式：
[1]Wenjie Lu;Kang Yan;Xian Luo;Yuetang Wang;Le Hou;Pengtao Li;Bin Huang;Yanqing Yang-.Superb strength and ductility balance of a Co-free medium-entropy alloy with dual heterogeneous structures)[J].材料科学技术（英文版）,2022(03):197-204
A类：
Ni46Cr23Fe23Al4Ti4,duc
B类：
Superb,ductility,balance,free,medium,entropy,dual,heterogeneous,structures,In,present,we,successfully,fabricated,novel,equiatomic,three,levels,L1,precipitates,Experimental,results,revealed,lead,remarkable,synergy,properties,this,showing,high,yield,ultimate,tensile,respectively,remaining,excellent,Further,analyses,about,strengthening,deformation,mechanisms,indicated,tation,hardening,induced,contribute,majority,enhance,meanwhile,hierarchical,stacking,faults,networks,density,Lomer,Cottrell,locks,microstructure,features,grains,substantially,facilitate,capacity,This,not,only,offers,fundamental,under,standing,structural,material,also,provides,useful,design,strategy,low,price,performance,alloys
AB值：
0.531113
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