典型文献
Atomic-scale study on the precipitation behavior of an Al-Zn-Mg-Cu alloy during isochronal aging
文献摘要：
The precipitation behavior of a 7075 Al alloy during isochronal heat treatments at three different heating rates has been studied using differential scanning calorimetry,high-angle-annular-dark-field scanning-transmission-electron microscope and density functional theory calculation.In the early stage of aging,GPⅠ and GPⅡ zones form sequentially and cause two characteristic DSC peaks.Subsequently,the formation of η1 precipitates takes place concurrently with η'.A novel type of metastable phase ηi'is identified as the precursor of η1,which can lower the lattice misfit between η1 and Al matrix along the direction of[10(1)0]η1//[001]Al.Accordingly,a pathway for the formation of η1 via η1'is demonstrated.Precipitates η'together with η1 and η1'contribute to the third DSC peak.With the further increase of temperature,ηprecipitates become prevailing.Based on the quantitative analyses,the influence of the heating rate and ending temperature on the cross section and number density of phases formed is discussed.
文献关键词：
中图分类号：
作者姓名：
Xingpu Zhang;Xiaotong Deng;Haofei Zhou;Jiangwei Wang
作者机构：
Center of Electron Microscopy and State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China;Center for X-Mechanics,Department of Engineering Mechanics,Zhejiang University,Hangzhou 310027,China;Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials,Institute of Wenzhou,Zhejiang University,Wenzhou 325006,China
文献出处：
引用格式：
[1]Xingpu Zhang;Xiaotong Deng;Haofei Zhou;Jiangwei Wang-.Atomic-scale study on the precipitation behavior of an Al-Zn-Mg-Cu alloy during isochronal aging)[J].材料科学技术（英文版）,2022(13):281-292
A类：
isochronal,Precipitates
B类：
Atomic,scale,study,precipitation,behavior,Mg,alloy,during,aging,treatments,three,heating,rates,been,studied,using,differential,scanning,calorimetry,high,angle,annular,dark,field,transmission,electron,microscope,density,functional,theory,calculation,In,early,stage,GP,zones,sequentially,cause,two,characteristic,DSC,peaks,Subsequently,formation,precipitates,takes,place,concurrently,novel,type,metastable,identified,precursor,which,lower,lattice,misfit,between,matrix,along,direction,Accordingly,pathway,via,demonstrated,together,contribute,third,With,further,increase,temperature,become,prevailing,Based,quantitative,analyses,influence,ending,cross,section,number,phases,formed,discussed
AB值：
0.620883
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