Effect of Alloy Elements on Solidification Properties of a Low Alloy Steel

Bu Hengyong; Li Hongmei; Guo Jianzheng; Li Mengnie

doi:10.15980/j.tzzz.2014.04.010

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Effect of Alloy Elements on Solidification Properties of a Low Alloy Steel
Vol. 34, Issue 4, Pages: 350-353(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.04.010

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[1]卜恒勇,李红梅,郭建政,李萌蘖.合金元素对低合金钢铸造性能的影响[J].特种铸造及有色合金,2014,34(04):350-353.

Bu Hengyong, Li Hongmei, Guo Jianzheng, et al. Effect of Alloy Elements on Solidification Properties of a Low Alloy Steel. [J]. Special Casting & Nonferrous Alloys 34(4):350-353(2014)
[1]卜恒勇,李红梅,郭建政,李萌蘖.合金元素对低合金钢铸造性能的影响[J].特种铸造及有色合金,2014,34(04):350-353. DOI： 10.15980/j.tzzz.2014.04.010.

Bu Hengyong, Li Hongmei, Guo Jianzheng, et al. Effect of Alloy Elements on Solidification Properties of a Low Alloy Steel. [J]. Special Casting & Nonferrous Alloys 34(4):350-353(2014) DOI： 10.15980/j.tzzz.2014.04.010.

摘要

通过JMatPro计算

研究了真空浇注条件下

C、Si、Mn、Cr、Ni和Mo等6种合金元素对核电用钢SA508III铸造性能的影响。利用正交试验原理设计了6因素3水平共150组试验

通过方差分析和线性回归等手段

确定了与铸造性能相关的两个目标函数的回归方程。计算结果表明

正交试验设计可以用于SA508III钢的合金成分优化;降低合金中C和Si的含量

有利于改善SA508III合金的铸造性能

减小合金在凝固过程中产生热裂和缩孔、缩松的倾向。

Abstract

Effects of alloy elements including C

and Mo

on the casting properties of SA508III steel were investigated by the JMatPro calculation.Variance analysis and linear regression were used to evaluate the regression equations for two objective functions by 6factors

3levels with a total of 150groups

which was related to casting properties of steels.The results show that the orthogonal experiment is an effective way to optimize the composition of SA508III steel.It is demonstrated by calculation that the casting properties of SA508III steel can be improved by decreasing the content of C and Si

and the casting defects such as hot tears and shrinkage porosity can be reduced.