supported by Jiangxi Provincial Natural Science Foundation (No.20224BAB214017);Jiangxi Academy of Sciences(Nos.2022YSBG22023,2022YSBG22024,2022YYB25,2022YYB26,2022YSBG10001);financially National Natural Science Foundation of China (Nos.52071039 and 51871032);Natural Science Foundation of Jiangsu Province (No.BK20202010)。
Hall-Petch slope(k) is an important material parameter, while there is a great challenge to accurately predict the k value of magnesium alloys due to a high dependence of k on the material parameters, deformation hist...
supported by the National Natural Science Foundation of China(Nos.12172117,12372154);National Science and Technology Major Project(No.J2019-1II-0010-0054);National Numerical Windtunnel(No.NNW2019-JT01-023);High-Performance Computing Center of Hebei University。
Tailoring grain size can improve the strength of polycrystals by regulating the proportion of grains to grain boundaries and the interaction area.As the grain size decreases to the nanoscale,the deformation mechanism ...
supported by the U.S.Department of Energy,Office of Basic Energy Sciences,Division of Materials Sciences and Engineering under Award #DE-SC0008637 as part of the Center for PRedictive Integrated Materials Science (PRISMS Center) at the University of Michigan;supported by National Science Foundation grant number ACI1548562,through the allocation TG-MSS160003。
This work presents a method to incorporate the micro Hall-Petch equation into the crystal plasticity finite element(CPFE) framework accounting for the microstructural features to understand the coupling between grain ...
supported by the Guangdong Basic and Applied Basic Research Foundation(2020B1515120067);the Hong Kong Research Grants Council under the Collaborative Research Fund(CRF-C6016-20G and CRF-C6021-19EF);the Fundamental Research Funds for the Central Universities(xxj032021001);the Key R&D Project of Shaanxi Province(2022GY-400);the National Natural Science Foundation of China(12274336).
The strengthσ_(y)(D)of a polycrystal can decrease or increase with the grain diameter D,i.e.,the famous Hall-Petch(HP)and inverse-Hall-Petch(IHP)behaviors,respectively.However,σ_(y)(D)under thick grain boundaries(GB...
financially supported by the National Natural Science Foundation of China(Nos.51827801 and 52171160);the National Key Research Development Program of China(No.2016YFB0700203).
Dislocation source-limited hardening and ductilization is an effective strategy to obtain superior strength-ductility synergy in some engineering structural metals. Recent works demonstrated that the synergy could be ...
Funded by the National Natural Science Foundation of China(No.51271046);the Liaoning Science and Technology Joint Fund(Nos.2020-YKLH-26 and 2021-YKLH-19);the Liaoning Science and Technology Projects(No.20180550724);the Foundation of Liaoning Key Laboratory of Chemical Additive Synthesis and Separation(No.ZJNK2109);the Doctoral Business and Innovation Launching Plan of Ying Kou City(No.QB-2019-10);the HighLevel Talent Research Startup Foundation of Yingkou Institute of Technology(Nos.YJRC202008 and YJRC202009)。
To study the influence of texture on Hall-Petch slope,the Hall-Petch relationships of two hot-extruded AZ31 alloys(A117 and A189)were determined by the measurement of yield strength at room temperature.To determine th...
supported by the National Natural Science Foundation of China(grant numbers 51801147,51790482,51722104,51625103,and 51621063);the National Key Re-search and Development Program of China(grant number 2017YFB0702301);the International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies.
{1012¯}twins were introduced into the magnesium(Mg)plate AZ31 via pre-rolling along its transverse direction.The plates,both with and without the pre-induced{1012¯}twins,were subjected to uniaxial tension along diff...
financially supported by the Natural Science Foundation of Shaanxi Province(No.2019TD-020);the Natural Science Basic Research Plan in Shaanxi Province of China(Nos.2020JM-41 and 2020JM-33);the National Natural Science Foundation of China(No.51471131);the Fundamental Research Funds for the Central Universities。
Grain size dependent strength,known as Hall-Petch relation,has been approved to be valid in crystalline metals and alloys.However,softening would eventually occur as grain size reduced into nanoscale that below a crit...
National Natural Science Foundation of China(51701079);Doctoral Scientific Research Start-up Foundation from Huaiyin Institute of Technology,Jiangsu,China(Z301B18558);Enterprise-University-Research Institute Collaboration Project of Jiangsu Province(FZ20190349)。