Evaluations of antimony and strontium interaction in an Al-Si-Cu-Zn die cast alloy

被引：11
作者：
Farahany, Saeed [1 ]
Idris, Mohd Hasbullah [1 ]
Ourdjini, Ali [1 ]
机构：
[1] Univ Teknol Malaysia, Fac Mech Engn, Dept Mat Mfg & Ind Engn, Johor Baharu 81310, Malaysia
来源：
THERMOCHIMICA ACTA | 2014年 / 584卷
关键词：
Aluminium alloy; Eutectic modification; Interaction; Thermal analysis; Intermetallic; EUTECTIC MODIFICATION LEVEL; THERMAL-ANALYSIS; FOUNDRY ALLOYS; SR; MICROSTRUCTURE; ADDITIONS; SILICON; BISMUTH; ADC12;
D O I：
10.1016/j.tca.2014.04.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The interaction between antimony and strontium in an ADC12 die casting alloy is investigated comprehensively by using a computer aided cooling curve thermal analysis coupled with microstructure inspection. The results of the thermal analysis show significant changes in Al-Si eutectic reaction based on different concentrations of Sb and Sr. Sb reduces the efficiency of Sr in modifying the eutectic Si. Based upon the data obtained in this study, the threshold Sr/Sb ratio should exceed about 0.5 in order to obtain fully modified structure. Moreover, a pre-eutectic reaction of Al2Si2Sr intermetallic was detected for high concentrations of Sr. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：72 / 78
页数：7
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