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首页> 外文会议>Materials forum - aluminium alloys, their physical and mechanical properties - Volume 28 - 2004 >Early Stage Hardening in Al-Cu-Mg Alloys
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Early Stage Hardening in Al-Cu-Mg Alloys

机译：Al-Cu-Mg合金的早期硬化

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摘要

The early stage age hardening behaviour in Al-Cu-Mg alloys with fixed Mg content (1.7at.%)rnand varying amounts of Cu has been studied. Two alloys that do and do not exhibit earlyrnstage hardening were selected for studying solute-dislocation interactions based on thernPortevin Le Chatelier effect. The differences between the nature of serrations of these twornalloys in the quenched as well as artificially aged stages are discussed. While the nature ofrnserrations was found to be similar in the as-quenched alloys (rapidly hardeningrnAl-0.8Cu-1.7Mg and non-rapidly hardening Al-0.2Cu-1.7Mg), it changed upon ageing in thernrapidly hardening alloy. The possible causes for the observed differences in the nature ofrnserrations are discussed.
机译：研究了具有固定的Mg含量（1.7at。％）和不同数量的Cu的Al-Cu-Mg合金的早期时效硬化行为。基于Portevin Le Chatelier效应，选择了具有和不具有早期硬化作用的两种合金来研究溶质-位错相互作用。讨论了在淬火以及人工时效阶段，这些二合金的锯齿性质之间的差异。虽然发现在淬火后的合金中，锯齿的性质相似（快速硬化的Al-0.8Cu-1.7Mg和非快速硬化的Al-0.2Cu-1.7Mg），但在快速硬化的合金中，它的老化会改变。讨论了导致锯齿状性质差异的可能原因。

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