Ce对ZL107合金的变质作用

胡勇; 饶丽; 胡强

doi:10.15980/j.tzzz.2014.09.071

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Ce对ZL107合金的变质作用
Modification Effects of Ce on ZL107 Aluminium Alloy
2014年34卷第9期页码：983-986
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.09.071

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[1]胡勇,饶丽,胡强.Ce对ZL107合金的变质作用[J].特种铸造及有色合金,2014,34(09):983-986.

Hu Yong, Rao Li, Hu Qiang. Modification Effects of Ce on ZL107 Aluminium Alloy[J]. Special Casting & Nonferrous Alloys, 2014,34(9):983-986.
[1]胡勇,饶丽,胡强.Ce对ZL107合金的变质作用[J].特种铸造及有色合金,2014,34(09):983-986. DOI： 10.15980/j.tzzz.2014.09.071.

Hu Yong, Rao Li, Hu Qiang. Modification Effects of Ce on ZL107 Aluminium Alloy[J]. Special Casting & Nonferrous Alloys, 2014,34(9):983-986. DOI： 10.15980/j.tzzz.2014.09.071.

摘要

向ZL107合金中加入不同含量的Ce

通过扫描电镜观测、力学性能、磨损性能和腐蚀性能测试等手段

研究了Ce对ZL107合金组织和性能的影响。结果表明

ZL107合金经Ce变质后

共晶Si形貌由针状变为均匀分布的短棒状

且晶粒组织得到细化。变质后合金的力学性能得到明显提高。当加入0.3%的Ce时

合金的抗拉强度和伸长率提高到198.7MPa和3.7%

耐磨性和耐蚀性分别较未变质处理的ZL107合金提高了61%和70.8%。进一步增加Ce加入量

变质效果变差

合金性能下降。

Abstract

Influences of different Ce content on microstructure and mechanical properties of ZL107 alloy were investigation by scanning electron microscopy（SEM）

tensile testing

wear resistance testing and corrosion resistance testing.The results show that morphology of eutectic Si in the ZL107 alloy is transformed from needle-flake shape to short bar shape with uniform distribution after modification

and the grains size is refined.The properties of ZL107 alloy with Ce modification are improved remarkably.The tensile strength and elongation of the alloy with 0.3% Ce modification reach up to 198.7 MPa and3.7%

respectively

and the wear resistance and corrosion resistance are increased by 61% and by70.8%

respectively.However

modification effect become worse with further Ce addition

decreasing the properties of the alloy.