Al-Mg-Si系铝合金的成分设计
The Composition Design of Al-Mg-Si Alloys
摘 要
采用Thermo-Calc软件计算了Al-Mg-Si系相图,得到了固溶温度与Mg2Si含量的关系曲线.以优化Al-Mg-Si系铝合金成分为目的,选取不同镁、硅含量的合金进行拉伸试验,得到了Mg2Si含量与抗拉强度的关系曲线.根据固溶温度、Mg2Si含量及抗拉强度三者之间的关系以及铝合金对强度性能的要求,可以计算镁、硅含量,并可参照固溶温度、Mg2Si含量及伸长率的关系设计出满足一定要求的Al-Mg-Si系铝合金的成分.
相图
Mg2Si
抗拉强度
Al-Mg-Si alloy
phase diagram
Mg2Si
tensile strength
Abstract
The phase diagram of Al-Mg-Si alloys was calculated by Thermo-Calc program,and function of temperature and Mg2Si content was got.The tensile test was performed to obtain the curve of Mg2Si content vs tensile strength for optimizing the composition of Al-Mg-Si alloys.The contens of Mg and Si can be obtained according to the requirement of high strength property of alloys as well as the relationship among temperature,Mg2Si content and tensile strength.Considerating the relationship among temperature Mg2Si content and elongation the composition of Al-Mg-Si alloy can be designed.
中图分类号 TG146.2
所属栏目
基金项目 上海市科委纳米基金资助项目(0352nm099)
收稿日期 2005/8/23
修改稿日期 2005/11/17
网络出版日期
作者单位点击查看
备注李晶(1980-),女,上海人,硕士研究生.
引用该论文: LI Jing,JIN Man,FEI Yue,SHAO Guang-jie. The Composition Design of Al-Mg-Si Alloys[J]. Materials for mechancial engineering, 2006, 30(9): 35～38
李晶,金曼,费玥,邵光杰. Al-Mg-Si系铝合金的成分设计[J]. 机械工程材料, 2006, 30(9): 35～38
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【4】Sundman B.An assessment of the Fe-O system[J].Journal of Phase Equilibria,1991,12(1):127-140.
【5】Grundy A N,Hallstedt B,Gauckler L J.Thermodynamic assessment of the lanthanum oxygen system[J].Journal of Phase Equilibria,2001,22(2):105-113.
【6】Jiang D,Wang C.Influnce of microstructure on deformation behavior and fracture mode of Al-Mg-Si[J].Materials Science and Engineering A,2003,352:29-33.
【7】Siddiqui Ratiq A,Abdullah Hussein A,Al-Belushi,et al.Influence of aging parameters on the mechanical properties of 6063 aluminium alloy[J].Journal of Materails Processing Technology,2000,102:234-240.
【8】刘宏,赵刚,刘春明.6000系铝合金组织和性能的研究进展[J].机械工程材料,2004,28(6):1-4.
【9】Marioara C D,Andersen S J,Jansen J,et al.The influence of temperature and storage time at RT on nucleation of the β″ phase in A 6082 Al-Mg-Si alloy[J].Acta Mater,2003,51:789-796.
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【13】乔芝郁,许志宏,刘洪霖.冶金和材料计算物理化学[M].北京:冶金工业出版社,1999.
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