Fe含量对Al-Fe合金组织及性能的影响

›› 2016, Vol. 29 ›› Issue (4): 6-.

Fe含量对Al-Fe合金组织及性能的影响

刘航,刘新宽,刘平,陈小红,李伟,何代华

(1.上海理工大学机械工程学院,上海 200093;2.上海理工大学材料工程学院,上海 200093)

出版日期:2016-04-15 发布日期:2016-04-26
作者简介:刘航(1990—),男,硕士研究生。研究方向:高强高导铝合金的制备及表征。
基金资助:
上海市教委创新基金资助项目(11YZ112);上海市科委基础研究重点基金资助项目(10JC1411800)

Effect of Fe Content on Microstructure and Electrical Properties of AlFe Aluminum Alloys

LIU Hang,LIU Xinkuan,LIU Ping,CHEN Xiaohong,LI Wei,HE Daihua

(1.School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;
2.School of Materials Science and Engineering,University of Shanghai for Science & Technology,Shanghai 200093,China)

Online:2016-04-15 Published:2016-04-26

摘要/Abstract

摘要：

通过扫描电镜、能谱分析、电化学工作站、金相显微分析和化学分析等手段研究Fe元素含量对Al-Fe合金的组织,导电性及抗腐蚀性能的影响,并从理论上分析了Fe的作用机理。研究结果表明,Fe在Al基体当中形成针状第二相,随着Fe含量的增加,第二相的数量也有所增加,但大小与形态变化较小。宏观上反映为铝合金硬度增加,导电性下降。同时,Al-Fe合金中的第二相Al3Fe,使铝合金具有良好的耐腐蚀性能。

关键词: Al Fe合金, Fe含量, 显微组织, 导电率

Abstract:

The influence of Fe content on the microstructure,conductivity and corrosion resistance of AlFe alloy is tested and analyzed by SEM,EDS,electrochemistry,metallographic examination and chemical analysis.Research results indicate that Fe forms second phase in Al matrix.The increase of Fe content in Al matrix yields more second phases with no evident change of morphology and scale.On macroscopic scale,the hardness increases while the conductivity decreases.Moreover,the second phase FeAl3 of AlFe alloy leads to better corrosion resistance.

Key words: Al Fe aluminum alloy;Fe content;microscopic structure;conductivity

中图分类号:

1007-7820(2016)04-006-04

刘航,刘新宽,刘平,陈小红,李伟,何代华. Fe含量对Al-Fe合金组织及性能的影响[J]. , 2016, 29(4): 6-.

LIU Hang,LIU Xinkuan,LIU Ping,CHEN Xiaohong,LI Wei,HE Daihua. Effect of Fe Content on Microstructure and Electrical Properties of AlFe Aluminum Alloys[J]. , 2016, 29(4): 6-.