Correlation between mechanical properties and amount of dendritic α-Al phase in as-cast near-eutectic Al-11.6% Si alloys modified with strontium
Correlation between mechanical properties and amount of dendritic α-Al phase in as-cast near-eutectic Al-11.6% Si alloys modified with strontium
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DOI：
10.1016/s0921-5093(01)01949-9
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发表时间：
2002-09-25
期刊：
影响因子：
6.4
通讯作者：
Sun, GX
中科院分区：
文献类型：
--
作者：
Liao, HC;Sun, Y;Sun, GX
采用定量金相分析软件对不同Sr含量的近共晶Al-11.6% Si合金中枝晶α-Al相的数量进行了测定，并讨论了枝晶α-Al含量与合金力学性能的关系。Sr的加入显著增加了Al-Si合金中α-Al相的数量，合金的力学性能与枝晶α-Al相的体积分数呈线性关系，枝晶α-Al相的体积分数对改善近共晶Al-Si合金的力学性能起着关键作用。(C)2002 Elsevier Science B. V.保留所有权利。
The amount of dendritic alpha-Al phase with varying Sr content in near-eutectic Al-11.6% Si alloy was measured by quantitative metallography analysis software and the correlation of mechanical properties of fully modified alloy with the amount of dendritic alpha-Al is discussed. Addition of Sr in Al-Si alloys results in a considerable increase of the amount of alpha-Al. Mechanical properties of the fully modified alloy are linearly related to the volume fraction of dendritic alpha-Al, which plays a key role in improving the mechanical properties of near-eutectic Al-Si alloys. (C) 2002 Elsevier Science B.V. All rights reserved.