Microstructure, mechanical properties and age-hardening of Mg-Li alloy sheets

李红斌; 姚广春; 郭志强; 刘宜汉; 吉海宾

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Microstructure, mechanical properties and age-hardening of Mg-Li alloy sheets

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＜正＞Mg-（5-22）（mass fraction, %）Li alloys with Zn addition were produced and studied. The density of studied alloys is 1.19-1.62 g/cm3. It is found that the alloy has excellent cold-workability and can be rolled to thin sheets at room temperature. The tensile tests were carried out at various tensile temperatures and strain rates. It is remarkable that the superplasticity occurs during uniaxial tensions at 150℃. In addition, the sheet is very sensitive to strain-rate even at room temperature. The age-hardening of the sheets at room temperature and 50℃was investigated. The hardening may be caused by the precipitation of MgLi2Zn phase, and overaging occurs owing to the phase transformation from MgLi2Zn to MgLiZn observed by X-ray diffractometry.

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《中国有色金属学报：英文版》 |2006年第s3期|1729-1731|共3页
作者
李红斌; 姚广春; 郭志强; 刘宜汉; 吉海宾;
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作者单位

School of Materials and Metallurgy Northeastern University;

Shenyang 110004;

China;

School of Materials and Metallurgy;

Northeastern University;

Shenyang 110004;

China;

School of Materials and Metallurgy;

Northeastern University;

Shenyang 110004;

China;

School of Ma;

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原文格式 PDF
正文语种 chi
中图分类金相学（金属的组织与性能）;
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机译：镁锂合金;力学性能;时效硬化;

Microstructure, mechanical properties and age-hardening of Mg-Li alloy sheets

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