超声波对铸造Al-5.0Cu-1.0Fe合金微观组织的影响

罗执; 娄照辉; 郑成坤; 张大童; 张卫文

doi:10.15980/j.tzzz.2015.03.031

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超声波对铸造Al-5.0Cu-1.0Fe合金微观组织的影响
Effect of Ultrasonic Vibration on the Microstructure of Casting Al-5.0Cu-1.0Fe Alloy
2015年35卷第3期页码：334-336
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.03.031

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[1]罗执,娄照辉,郑成坤,张大童,张卫文.超声波对铸造Al-5.0Cu-1.0Fe合金微观组织的影响[J].特种铸造及有色合金,2015,35(03):334-336.

Luo Zhi, Lou Zhaohui, Zheng Chengkun, et al. Effect of Ultrasonic Vibration on the Microstructure of Casting Al-5.0Cu-1.0Fe Alloy[J]. Special Casting & Nonferrous Alloys, 2015,35(3):334-336.
[1]罗执,娄照辉,郑成坤,张大童,张卫文.超声波对铸造Al-5.0Cu-1.0Fe合金微观组织的影响[J].特种铸造及有色合金,2015,35(03):334-336. DOI： 10.15980/j.tzzz.2015.03.031.

Luo Zhi, Lou Zhaohui, Zheng Chengkun, et al. Effect of Ultrasonic Vibration on the Microstructure of Casting Al-5.0Cu-1.0Fe Alloy[J]. Special Casting & Nonferrous Alloys, 2015,35(3):334-336. DOI： 10.15980/j.tzzz.2015.03.031.

摘要

采用金相微观分析、扫描电镜、电子能谱分析和X射线衍射分析等手段

研究了超声波处理与无超声波处理的铸造Al-5.0Cu-1.0Fe合金的微观组织

分析了超声波对合金微观组织的影响。结果表明

超声波对合金微观组织有显著影响

当施加超声波时

缩孔、缩松等铸造缺陷明显减少

合金的二次枝晶间距减小;超声波细化合金中的富铁相

针状富Fe相Al7Cu2Fe显著减少

汉字状的富Fe相Al6（CuFe）增多

合金中的θ-Al2Cu相减少。

Abstract

The microstructure of casting Al-5.0Cu-1.0Fe alloy with and without ultrasonic vibration treatment was observed by optical microscope

scanning electron microscope and X-ray diffraction analysis.The results show that ultrasonic vibration can greatly improve the microstructure of the alloy significantly by decreasing the second dendritic arm spacing and reducing the casting defects

such as shrinkage

porosity.With ultrasonic vibration treatment

iron-rich intermetallics in the casting alloy can be refined

meanwhile

the acicular iron-rich phases are obviously decreased and the Chinese script iron-rich phases are increased.In addition

the volume fraction ofθ-Al2 Cu phase is decreased.