Localized Deformation of Equal Channel Angular Extruded Aluminum

机译：等通道角挤压铝材的局部变形

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The localized deformation behavior of annealed Al and Al severely deformed by ECAE process was determined by using microindentation test. Using the method proposed by Tabor, the indentation stress-strain curves of annealed Al and as-ECAE deformed Al were constructed, which display similar work-hardening behavior. For annealed Al, the altitude of the indentation stress-strain curves is a function of the indenter size. A master curve then is constructed, which displays different work-hardening behavior. For the ECAE deformed Al, the indentation stress-strain curves are independent of the indenter size, suggesting that the microstructure inside the as-ECAE deformed Al is different from the annealed Al.

机译：通过微压痕试验确定了退火后的Al和经ECAE工艺严重变形的Al的局部变形行为。使用Tabor提出的方法，构造了退火Al和as-ECAE变形Al的压痕应力-应变曲线，显示出相似的加工硬化行为。对于退火的Al，压痕应力-应变曲线的高度是压头尺寸的函数。然后构造一个主曲线，该曲线显示不同的加工硬化行为。对于ECAE变形的Al，压痕应力-应变曲线与压头尺寸无关，这表明ECEA变形的Al内部的显微组织不同于退火的Al。

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来源
《Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.1; 20041102-05; Beijing(CN)》|2004年|P.425-428|共4页
会议地点 Beijing(CN)
作者
Fuqian Yang; Lingling Peng; Kenji Okazaki;
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作者单位

Department of Chemical and Materials Engineering University of Kentucky, Lexington, KY 40506, USA;

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会议组织
原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
indentation; size effect; master-curve; severe deformation;

机译：压痕;尺寸效应;主曲线;严重变形;

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Localized Deformation of Equal Channel Angular Extruded Aluminum

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