典型文献
Quantitative Electron Tomography for Accurate Measurement of Precipitates Microstructure Parameters in Al-Cu-Li Alloys
文献摘要：
Mechanical theories show that properties of alloys are strongly dependent on the morphological parameters of their strength-ening precipitates.However,accurate measurement of precipitates microstructure parameters is still a challenging task.In this article,we develop a quantitative electron tomography method by combining computer vision technology to accurately characterize the three-dimensional microstructure parameters,such as volume fractions,sizes and distributions,of the Ti and δ'/θ'/δ'precipitates in Al-Cu-Li(-Mg)alloys.Since they have extremely large aspect-ratios in shape and large numbers in density upon formation in the Al matrix,these thin plate-like precipitates are difficult to be characterized quantitatively without the assistance of computer vision technology.It is shown that the property difference between two peak-aged states of the alloy can be well explained with the quantitative precipitate parameters correctly measured.Using these correct precipitate data,we also tested the validity of current mechanical models for projecting the contribution of precipitates to the strengths of the alloy,demonstrating that quantitative relations between strength and microstructure parameters still need to be refined.
文献关键词：
中图分类号：
作者姓名：
Shi-Yong Li;Ruo-Han Shen;Yu-Tao He;Cui-Lan Wu;Jiang-Hua Chen
作者机构：
Centre for High Resolution Electron Microscopy,College of Materials Science and Engineering,Hunan University,Changsha 410082,China;College of Materials Science and Engineering,Hainan University,Haikou 570228,China
文献出处：
引用格式：
[1]Shi-Yong Li;Ruo-Han Shen;Yu-Tao He;Cui-Lan Wu;Jiang-Hua Chen-.Quantitative Electron Tomography for Accurate Measurement of Precipitates Microstructure Parameters in Al-Cu-Li Alloys)[J].金属学报（英文版）,2022(11):1882-1894
A类：
Precipitates
B类：
Quantitative,Electron,Tomography,Accurate,Measurement,Microstructure,Parameters,Li,Alloys,Mechanical,theories,that,properties,alloys,are,strongly,dependent,morphological,parameters,their,ening,precipitates,However,measurement,microstructure,still,challenging,task,In,this,article,develop,electron,tomography,method,by,combining,computer,vision,technology,accurately,three,dimensional,such,volume,fractions,sizes,distributions,Ti,Mg,Since,they,have,extremely,large,aspect,ratios,shape,numbers,density,upon,formation,matrix,these,thin,plate,like,difficult,characterized,quantitatively,without,assistance,It,shown,property,difference,between,two,peak,aged,states,can,well,explained,correctly,measured,Using,data,also,tested,validity,current,mechanical,models,projecting,contribution,strengths,demonstrating,relations,need,refined
AB值：
0.603622
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