Microstructure and properties of vanadium microalloyed cast magnesium alloy for automobile

Gao Yanan; Zheng Lei; Zhang Quanyu

doi:10.7513/j.issn.1004-7638.2023.04.027

Volume 44 Issue 4

Aug. 2023

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Gao Yanan, Zheng Lei, Zhang Quanyu. Microstructure and properties of vanadium microalloyed cast magnesium alloy for automobile[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(4): 190-195. doi: 10.7513/j.issn.1004-7638.2023.04.027

Citation:

Gao Yanan, Zheng Lei, Zhang Quanyu. Microstructure and properties of vanadium microalloyed cast magnesium alloy for automobile[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(4): 190-195. doi: 10.7513/j.issn.1004-7638.2023.04.027

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Microstructure and properties of vanadium microalloyed cast magnesium alloy for automobile

doi: 10.7513/j.issn.1004-7638.2023.04.027

Gao Yanan^1
,,
Zheng Lei²,
Zhang Quanyu^{1
,
,}

1.
Department of Automotive Engineering, Hebei Petroleum University of Technology, Chengde 067000, Hebei, China
2.
College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China

Received Date: 2022-03-03
Publish Date: 2023-08-30

Abstract

Abstract

In order to study the microstructure, wear resistance and corrosion resistance of vanadium microalloyed cast magnesium alloy for automobile, different contents of alloy element vanadium were added into the cast Mg-9Al-1Zn magnesium alloy, and the microstructure, wear resistance and corrosion resistance of the test alloy were tested and compared. The results show that the alloy element vanadium can effectively refine the internal structure of the alloy and improve the wear resistance and corrosion resistance of the alloy. With the gradual increase of vanadium content from 0 to 0.4%, both the wear resistance and corrosion resistance of the test alloy have been improved. Further increasing vanadium content to 0.5% will reduce the wear and corrosion resistance. Compared with Mg-9Al-1Zn magnesium alloy without vanadium, when 0.4% alloy element vanadium is added to Mg-9Al-1Zn magnesium alloy, the wear volume of the alloy is reduced by 12.7×10⁻³ mm³ or 29.8%, and the positive shift of corrosion potential reaches by 0.107 V or 12.2%. The tensile strength, yield strength and elongation of the alloy are increased by 58, 58 MPa and 3.3% respectively, with relative increasing amplitude of 20.9%, 36.0% and 40.2%, respectively. The alloy element vanadium content for Mg-9Al-1Zn-V magnesium alloy is preferably at 0.4%.
- cast magnesium alloy,
- vanadium microalloying,
- microstructure,
- wear resistance,
- corrosion resistance

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References(14)

References

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