Prediction of Grain Size of Metallic Casting Mg-Al Alloys

Zhang Shichang; Wu Fanggang; Mei Qiuping; Zhou Zhou; Gong Mengcheng

doi:10.15980/j.tzzz.2015.02.008

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Prediction of Grain Size of Metallic Casting Mg-Al Alloys
Vol. 35, Issue 2, Pages: 140-142(2015)
Published： 2015 ，
DOI： 10.15980/j.tzzz.2015.02.008

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[1]张诗昌,吴方钢,梅秋平,周舟,龚梦成.金属型铸造Mg-Al合金凝固晶粒尺寸的预测[J].特种铸造及有色合金,2015,35(02):140-142.

Zhang Shichang, Wu Fanggang, Mei Qiuping, et al. Prediction of Grain Size of Metallic Casting Mg-Al Alloys. [J]. Special Casting & Nonferrous Alloys 35(2):140-142(2015)
[1]张诗昌,吴方钢,梅秋平,周舟,龚梦成.金属型铸造Mg-Al合金凝固晶粒尺寸的预测[J].特种铸造及有色合金,2015,35(02):140-142. DOI： 10.15980/j.tzzz.2015.02.008.

Zhang Shichang, Wu Fanggang, Mei Qiuping, et al. Prediction of Grain Size of Metallic Casting Mg-Al Alloys. [J]. Special Casting & Nonferrous Alloys 35(2):140-142(2015) DOI： 10.15980/j.tzzz.2015.02.008.

摘要

介绍了几种典型的凝固晶粒尺寸预测模型。以相对晶粒尺寸（RGS）模型以及Stjohn D H和Qian M晶粒尺寸（dgs）模型为基础

计算并测定了金属型铸造AZ61和AZ91镁合金的晶粒尺寸。结果表明

计算得到的RGS能够反映镁合金相对晶粒尺寸与Al含量的变化趋势

即随着Al含量的增加

RGS降低。Stjohn D H和Qian M模型能较准确地预测镁合金的实际晶粒大小。

Abstract

Several typical models for predicting the solidified grain size were described.The grain size was calculated according to the relative grain size model（RGS）and Stjohn D H and Qian M model

and the prediction results were compared with those of casting AZ61 and AZ91magnesium alloys in permanent mould.The results reveal that the calculated RGScan represent the trend of relative grain size changes with Al contents

where RGSis decreased with increasing in Al contents.Stjohn D H and Qian M model can predict the actual grain size correctly.

关键词

凝固晶粒尺寸数学模型Mg-Al铸造合金

Keywords

Solidified Grain SizeMathematic ModelMg-Al Casting Alloys

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