典型文献
A strong and ductile medium Mn steel manufactured via ultrafast heating process
文献摘要：
Ultrafast heating(UFH)at the rates of 10-300℃/s was employed as a new strategy to anneal a cold-rolled 7wt％Mn steel,followed by the immediate cooling.Severely deformed strain-induced martensite and lightly-deformed thermal martensite,both had been already enriched with C and Mn before,trans-formed to fine and coarse austenite grains during the UFH,leading to the bimodal size distribution.Com-pared with the long intercritical annealing(1A)process,the UFH processes produced larger fraction of RA grains(up to 37％)with a high density of dislocation,leading to the significant increase in yield strength by 270 MPa and the product of strength and elongation up to 55 GPa％due to the enormous work hard-ening capacity.Such a significant strengthening is first attributed to high density dislocations preserved after UFH and then to the microstructural refinement and the precipitation strengthening;whilst the sus-tainable work hardening is attributed to the successive TRIP effect during deformation,resulting from the large fraction of RA instantly formed with the bimodal size distribution during UFH.Moreover,the results on the microstructural characterization,thermodynamics calculation on the reverse transformation tem-perature and the kinetic simulations on the reverse transformation all suggest that the austenitization during UFH is displacive and involves the diffusion and partition of C.Therefore,we propose that it is a bainite-like transformation.
文献关键词：
中图分类号：
作者姓名：
Pengyu Wen;Bin Hu;Jiansheng Han;Haiwen Luo
作者机构：
State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Xue Yuan Lu 30,Beijing 100083,China;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Xue Yuan Lu 30,Beijing 100083,China
文献出处：
引用格式：
[1]Pengyu Wen;Bin Hu;Jiansheng Han;Haiwen Luo-.A strong and ductile medium Mn steel manufactured via ultrafast heating process)[J].材料科学技术（英文版）,2022(02):54-68
A类：
austenitization
B类：
strong,ductile,medium,Mn,steel,manufactured,via,ultrafast,heating,Ultrafast,UFH,rates,was,employed,new,strategy,cold,rolled,7wt,followed,by,immediate,cooling,Severely,deformed,strain,induced,martensite,lightly,thermal,both,had,been,already,enriched,before,coarse,austenite,grains,during,leading,bimodal,size,distribution,Com,pared,intercritical,annealing,1A,processes,produced,larger,fraction,RA,up,high,density,significant,increase,yield,product,elongation,GPa,due,enormous,work,capacity,Such,strengthening,first,attributed,dislocations,preserved,after,microstructural,refinement,precipitation,whilst,sus,tainable,hardening,successive,TRIP,effect,deformation,resulting,from,instantly,Moreover,results,characterization,thermodynamics,calculation,reverse,transformation,tem,perature,kinetic,simulations,all,suggest,that,displacive,involves,diffusion,partition,Therefore,propose,bainite,like
AB值：
0.582199
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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。
