典型文献
Tuning Cr-rich nanoprecipitation and heterogeneous structure in equiatomic CrFeNi medium-entropy stainless alloys
文献摘要:
High-/medium-entropy stainless alloys(HESAs/MESAs)are a new kind of alloys with great potential to combine excellent properties from high-/medium-entropy alloys(HEAs/MEAs)and stainless steels.A CrFeNi MESA was chosen to investigate its microstructures and mechanical behaviors.After homogenization,the strength and ductility of CrFeNi MESAs with single-phase face-centered-cubic(fcc)structure were higher compared with those of Fe100-x-yCrxNiy aus-tenitic stainless steels.Cr-rich body-centered-cubic(bcc)precipitates and heterogeneous structure were introduced by cold rolling and annealing at 800℃.Rolling at 700℃results in higher dislocation density and the occurrence of lamellar Cr-rich bcc precipitates.High-density dislocations and fcc grains with heterogeneous structure,together with Cr-rich bcc precipitates,contribute to a yield strength improvement of about 50 MPa,and appreciable tensile yield strength of~540 MPa and fracture strain of~20%are obtained.It reveals that not only compositional variations but also grain size and phase structure tuning can be utilized for achieving desired mechanical properties.
文献关键词:
中图分类号:
作者姓名:
Kai Wang;Xue-jiao Wang;Tuan-wei Zhang;Xi Jin;Hui-jun Yang;Jun-wei Qiao
作者机构:
College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China;College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China;State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China
文献出处:
引用格式:
[1]Kai Wang;Xue-jiao Wang;Tuan-wei Zhang;Xi Jin;Hui-jun Yang;Jun-wei Qiao-.Tuning Cr-rich nanoprecipitation and heterogeneous structure in equiatomic CrFeNi medium-entropy stainless alloys)[J].钢铁研究学报(英文版),2022(03):529-536
A类:
CrFeNi,HESAs,MESAs,Fe100,yCrxNiy,tenitic
B类:
Tuning,rich,nanoprecipitation,heterogeneous,equiatomic,medium,entropy,stainless,alloys,High,new,kind,great,potential,combine,excellent,properties,from,HEAs,MEAs,steels,was,chosen,investigate,its,microstructures,mechanical,behaviors,After,homogenization,strength,ductility,single,phase,face,centered,cubic,fcc,were,higher,compared,those,aus,body,bcc,precipitates,introduced,by,cold,rolling,annealing,Rolling,results,density,occurrence,lamellar,dislocations,grains,together,contribute,yield,improvement,about,appreciable,tensile,fracture,strain,obtained,It,reveals,that,not,only,compositional,variations,also,size,tuning,can,utilized,achieving,desired
AB值:
0.510332
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