Effect of Ti and Zr elements with equal mass ratio on microstructure and corrosion resistance of Zn-11Al-3Mg alloy |
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| Authors: | Mingming Zhang Guorong Zhou Huijie Sun Xinying Teng Zhenlu Zhao |
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| Affiliation: | School of Materials Science and Engineering, University of Jinan, Jinan, China |
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| Abstract: | In this study, the effect of Ti and Zr elements with equal mass ratio on microstructure and corrosion resistance of Zn-11Al-3Mg alloy was investigated. The microstructure was significantly refined and Al-rich phase transformed from dendrite to petal-like with the addition of Zr and Ti elements, due to the Al3(TixZr1 − x) phase as the nucleation substrate. The corrosion resistance of Zn-11Al-3Mg-x(Ti,Zr) alloy was effectively improved. Moreover, the corrosion products of Zn-Al-Mg alloy were not changed by the addition of Ti and Zr, which are mainly composed of Zn5(OH)8Cl2·H2O and Zn6Al2(OH)16CO3·4H2O. |
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| Keywords: | corrosion resistance electrochemical properties grain refinement Zn-Al-Mg alloy |
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