| RESEARCH PAPER |
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Effect of Fe and Ce Content on Mechanical Properties and Corrosion
Resistance of Galfan Alloy |
| WU Changjun1, LU Longfei1, YANG Wei1, SU Xuping1,2, WANG Jianhua1
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1 Jiangsu Key Laboratory of Materials Surface Science and Technology, School of Materials Science and Engineering, Changzhou University, Changzhou 213164;
2 Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164 |
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Abstract The Zn-5Al-0.1Ce-xFe and Zn-5Al-yCe-0.1Fe alloys were prepared by adding Zn-Fe-Ce master alloys, which were melted in evacuated condition, into the Zn-Al bath. The influence of Fe and Ce contents on the microstructure and mechanical pro-perties of these alloys were investigated. And their electrochemical properties were measured by the electrochemical workstation. Experimental results indicate that FeAl3Znx particles form in the Zn-5Al-0.1Ce alloy when Fe content is above 0.02%. With the increase of the Fe content, the amounts of the FeAl3Znx phase and the proeutectic η-Zn phase increase, which make the microstructure of the Zn-Al eutectic change from lamellar to dot. Less than 0.1% Fe will improve the tensile strength of the Galfan alloy. With the increase of Fe content, the tensile strength of the alloy decreases slightly. The best comprehensive mechanical properties is obtained when 0.02%Fe is added in the alloy. And the corrosion resistance of the alloys increase when less than 0.04%Fe is added in to the Zn-5Al-0.1Ce alloy. Moreover, with the increase of Ce content, the mechanical properties of the Zn-5Al-yCe-0.1Fe alloys reduce, while its corrosion resistance changed slightly. Therefore, it is believed that the content of Fe and Ce in the liquid bath should be strictly controlled according to the requirement of the performance during in production process.
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Published: 25 February 2017
Online: 2018-05-02
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2017, Vol. 31 
