典型文献
Achieving High Strength-plasticity of Nanoscale Lamellar Grain Extracted from Gradient Lamellar Nickel
文献摘要：
Traditional metallic materials usually face a dilemma between high strength and poor strain hardening capacity.How-ever,heterogeneous structured metallic materials have been found to obviously overcome the trade-off.Herein,gra-dient lamellar structure was fabricated through ultrasound-aided deep rolling technique in pure Ni with high stacking fault energy after heat treatment.The gradient lamellar Ni was successively divided into the four regions.In-situ micro-pillar compression tests were conducted in different regions to reveal the corresponding microscopic mechanical properties.Microscopic characterization techniques were performed to explore underlying deformation mechanisms and the effects of microstructural parameters on deformation behaviors.This work demonstrates that the micropillar with near nanoscale lamellar thickness possesses excellent strength and plasticity.On one hand,the reason for high strength of near nanoscale micropillar is that the strength of micropillar increases with the decrease of lamellar thick-ness according to the Hall-Petch effect.On the other hand,numerous lamellar grain boundaries perpendicular to the loading direction is found to hinder the motion of slip bands,resulting in great strain hardening capacity in the near nanoscale lamellar micropillar.
文献关键词：
中图分类号：
作者姓名：
Zimeng Wang;Yunfei Jia;Yong Zhang;Pei Tang;Xiancheng Zhang;Shantung Tu
作者机构：
Key Laboratory of Pressure Systems and Safety,Ministry of Education,School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China
文献出处：
引用格式：
[1]Zimeng Wang;Yunfei Jia;Yong Zhang;Pei Tang;Xiancheng Zhang;Shantung Tu-.Achieving High Strength-plasticity of Nanoscale Lamellar Grain Extracted from Gradient Lamellar Nickel)[J].中国机械工程学报,2022(04):50-61
A类：
Extracted
B类：
Achieving,High,Strength,plasticity,Nanoscale,Lamellar,Grain,from,Gradient,Nickel,Traditional,metallic,materials,usually,face,dilemma,between,high,strength,poor,strain,hardening,capacity,How,ever,heterogeneous,structured,have,been,found,obviously,overcome,trade,off,Herein,lamellar,was,fabricated,through,ultrasound,aided,deep,rolling,pure,stacking,fault,energy,after,heat,treatment,gradient,successively,divided,into,four,regions,In,situ,compression,tests,were,conducted,different,reveal,corresponding,microscopic,mechanical,properties,Microscopic,characterization,techniques,performed,explore,underlying,deformation,mechanisms,effects,microstructural,parameters,behaviors,This,work,demonstrates,that,micropillar,near,nanoscale,thickness,possesses,excellent,On,one,hand,reason,increases,decrease,according,Hall,Petch,other,numerous,grain,boundaries,perpendicular,loading,direction,hinder,motion,slip,bands,resulting,great
AB值：
0.62272
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