典型文献
A hot tearing criterion based on solidification microstructure in cast alloys
文献摘要：
A criterion based on solidification microstructure was proposed to precisely predict the hot tearing be-havior of cast alloys,which takes into account the effects of both mechanical and nonmechanical factors.This criterion focuses on the events occurring at the grain boundary,which are determined by the ther-mal contraction,solidification shrinkage,grain growing and liquid feeding.This criterion responds to a series of factors that affect hot tearing,such as alloy composition,mold design,casting process and mi-crostructure.Its credibility has been validated by studying the hot tearing behavior of Mg-Ce alloys.In conformity with the experimental results,this criterion predicted decrease in the number of rods oc-curring hot tearing with increasing cerium content.A simplified criterion was derived and validated by Mg-Ce(equiaxed grain)and Mg-Al(columnar grain)alloy systems,which is suitable for the case where the eutectic liquid fraction is low and the liquid feeding can be ignored.In addition,a hot tearing index for equiaxed grains was proposed,that is,|dT/d(fs1/3)| near(fs)1/3=1,and its prediction results were consistent with the hot tearing susceptibility calculated from the experimental results.
文献关键词：
中图分类号：
作者姓名：
Bo Hu;Zixin Li;Dejiang Li;Tao Ying;Xiaoqin Zeng;Wenjiang Ding
作者机构：
National Engineering Research Center of Light Alloy Net Forming,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;The State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China
文献出处：
引用格式：
[1]Bo Hu;Zixin Li;Dejiang Li;Tao Ying;Xiaoqin Zeng;Wenjiang Ding-.A hot tearing criterion based on solidification microstructure in cast alloys)[J].材料科学技术（英文版）,2022(10):68-80
A类：
nonmechanical,crostructure,fs1
B类：
hot,tearing,criterion,solidification,microstructure,alloys,was,proposed,precisely,which,takes,into,account,effects,both,factors,This,focuses,events,occurring,boundary,are,determined,by,ther,mal,contraction,shrinkage,growing,liquid,feeding,responds,series,that,affect,such,composition,mold,design,casting,process,Its,credibility,has,been,validated,studying,behavior,Mg,Ce,In,conformity,experimental,results,this,predicted,decrease,number,rods,increasing,cerium,content,simplified,derived,equiaxed,columnar,systems,suitable,case,where,eutectic,fraction,low,can,ignored,addition,grains,dT,near,its,prediction,were,consistent,susceptibility,calculated,from
AB值：
0.475289
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