Constitutive behaviour of A356 during the quenching operation
Constitutive behaviour of A356 during the quenching operation
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DOI：
10.1016/j.msea.2004.06.004
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发表时间：
2004-10-15
期刊：
影响因子：
6.4
通讯作者：
Hermesmann, C
中科院分区：
文献类型：
--
作者：
Estey, CM;Cockcroft, SL;Hermesmann, C
英属哥伦比亚大学（University of British Columbia）和加拿大丰田汽车公司（Canadian Autoparts Toyota Inc.）正在进行一项合作研究，旨在开发一种数学模型，以预测A356铸铝车轮在淬火过程中残余应力的形成，从而预测变形。为了建立准确的淬火过程热应力模型，需要详细描述A356在固溶状态下的本构行为。不幸的是，大多数发表的A356的本构数据集中在最终热处理的T6状态。因此，研究了A356在固溶状态下，淬火和人工时效前的本构行为。单轴压缩试验在温度（高达500度）和应变速率（从10（-3）到1 s(-1)）范围内进行，包括在淬火操作期间通常经历的那些。(C) 2004 Elsevier B.V.版权所有
A collaborative research effort is underway between the University of British Columbia and Canadian Autoparts Toyota Inc. to develop a mathematical model to predict the formation of residual stress, and hence the deformation, in A356 cast aluminum wheels during the quenching operation. In order to produce an accurate thermal-stress model of the quenching operation, a detailed description of the constitutive behaviour of A356 is required in the solutionized condition. Unfortunately, most published constitutive data for A356 focuses on the final heat treated T6 condition. Therefore, an investigation was performed to determine the constitutive behaviour of A356 in the solutionized condition, prior to quenching and artificial aging. Uniaxial compression tests were performed over a range of temperatures (up to 500 degreesC) and strain-rates (from 10(-3) to 1 s(-1)) encompassing those normally experienced during the quenching operation. (C) 2004 Elsevier B.V. All rights reserved.