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The effects of Li additions on the microstructure and mechanical properties of 380 Aluminum casting alloys

机译:Li添加对380铝铸造合金微观结构和力学性能的影响

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The effects of Li on the microstructure and mechanical properties of Type A380 aluminum casting alloys have been examined. It is shown that, as the Li content is increased up to 0.1 wt.pct in the baseline alloy (Al-8.5 wt.%Si-3.5 wt.%Cu-l wt.%Fe).Li successfully modifies the morphology of the P-A15FeSi and eutectic Si phases from coarse intersected and branched platelets into finer and independent ones. The Li-containing alloy exhibits higher strength and elongation to failure, presumably due to both finer p-ABFeSi and eutectic Si phases.
机译:研究了LI对A380型铝铸造合金型微观结构和力学性能的影响。结果表明,随着Li含量在基线合金中增加至0.1wt.pct(Al-8.5重量%Si-3.5重量%Cu-3。%Cu-L Wt。%Fe).li成功地改变了形态P-A15FESI和共晶的SI阶段从粗略的相交和分支血小板进入更精细和独立的血小板。含量的合金具有更高的强度和伸长率,可能是由于较细的P-Abfesi和共晶Si相。

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