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OALib Journal期刊
ISSN: 2333-9721
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EFFECT OF AGING ON THE STRUCTURES AND PROPERTIES OF RAPIDLY SOLIDIFIED Al-Li-Cu AND Al-Li-Cu-Zr ALLOYS
时效处理对快速凝固Al-Li—Cu 及 Al-Li-Cu-Zr合金结构与性能的影响

Keywords: Al-Li alloy,rapid solidification,aging,structure and properties
铝锂合金
,快速凝固,时效,组织和性能

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Abstract:

The effect of aging on the structure and properties of rapidly solidifiedAl-2.4Li-2.4Cu,Al-2.4Li-2.4Cu-0.3Zr and Al-2.4Li-2.4Cu-0.7Zr alloys has been studied byusing tension and TEM.The experimental results show that aging velocity and tensile strengthof alloys were increased by adding Zr and pre-age stretching.However,adding of Zr exceeds0.3 wt% does not produce strong strengthening effect on the alloys.The dislocation producedby pre-age stretch is avialible for uniform precipitation of Tl strengthening phase.

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