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首页> 外文期刊>Archives of Metallurgy and Materials >Hrtem Observation of the Precipitates in Cu and Ag Added Al-Mg-Si Alloys
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Hrtem Observation of the Precipitates in Cu and Ag Added Al-Mg-Si Alloys

机译:Cu和Ag添加的Al-Mg-Si合金中析出物的系统观察

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It has been known that Cu- and Ag-added Al-1.0mass%Mg2Si alloys (Al-Mg-Si-Cu alloy and Al-Mg-Si-Ag alloy) have higher hardness and elongation than those of Al-1.0mass%Mg2Si alloy. In this study, the aging behaviour of Al-Mg-Si-Cu alloy, Al-Mg-Si-Ag alloy and (Cu+Ag)-addition Al -1.0 mass% Mg2Si alloy has been investigated by hardness test and TEM observation. The Al-Mg-Si-Cu-Ag alloy has the fastest age-hardening rate in the early aging period and the finest microstructure at the peak hardness among three alloys. Therefore the microstructure of the precipitate in Al-Mg-Si-Cu-Ag alloy has been investigated by HRTEM observation to understand the effect of Cu and Ag addition on aging precipitation.
机译:已知添加Cu和Ag的Al-1.0质量%Mg 2 Si合金(Al-Mg-Si-Cu合金和Al-Mg-Si-Ag合金)具有比Al-1.0质量%高的硬度和伸长率。 Mg2Si合金。本研究通过硬度试验和TEM观察研究了Al-Mg-Si-Cu合金,Al-Mg-Si-Ag合金和(Cu + Ag)-Al -1.0质量%Mg2Si合金的时效行为。在三种时效中,Al-Mg-Si-Cu-Ag合金在早期时效期间具有最快的时效硬化速率,并且在峰值硬度处具有最佳的显微组织。因此,通过HRTEM观察研究了Al-Mg-Si-Cu-Ag合金中沉淀物的微观结构,以了解Cu和Ag的添加对时效沉淀的影响。

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