A Combined Numerical-Experimental Approach to Quantify the Thermal Contraction of A356 During Solidification

被引：7
|
作者：
Macht, J. P. [1 ]
Maijer, D. M. [1 ]
Phillion, A. B. [2 ]
机构：
[1] Univ British Columbia, Dept Mat Engn, Vancouver, BC V6T 1Z4, Canada
[2] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2017年 / 48A卷 / 07期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Heat Transfer Coefficient; Thermal Contraction; Finite Element Analysis Model; Thermal Contact Conductance; Solidification Contraction;
D O I：
10.1007/s11661-017-4097-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A process for generating thermal contraction coefficients for use in the solidification modeling of aluminum castings is presented. Sequentially coupled thermal-stress modeling is used in conjunction with experimentation to empirically generate the thermal contraction coefficients for a strontium-modified A356 alloy. The impact of cooling curve analysis on the modeling procedure is studied. Model results are in good agreement with experimental findings, indicating a sound methodology for quantifying the thermal contraction. The technique can be applied to other commercially relevant aluminum alloys, increasing the utility of solidification modeling in the casting industry.
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页码：3370 / 3376
页数：7
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