Microstructural refinement of Al-10.2%Si alloy by intensive shearing

被引：25

作者：

Kotadia, H. R. ^{[1
]}

Babu, N. Hari ^{[1
]}

Zhang, H. ^{[1
]}

Fan, Z. ^{[1
]}

机构：

[1] Brunel Univ, BCAST, Uxbridge UBS 3PH, Middx, England

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

Al-Si alloy; Solidification; Casting; Liquid shear; Grain refinement; HETEROGENEOUS NUCLEATION; GRAIN-REFINEMENT; ALUMINUM;

D O I：

10.1016/j.matlet.2009.12.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Al-10.2%Si alloy when cast near the liquidus temperature has tremendous potential for producing fine grain structure. However, for casting applications, it requires casting at higher superheating, where this alloy results in large dendritic grain structure. Here, we show that, by applying intensive shearing to the liquid metal prior to casting, dendritic growth can be largely suppressed and fine grain structure can be achieved at higher casting temperature. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.

引用

页码：671 / 673

页数：3

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