Corrosion Behavior of Semi-Solid Formed Mg–Zn–Zr–Nd Alloy

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  • Sun Hao
    Key Laboratory of Lightweight Structural Materials Liaoning Province, Northeastern University
  • Zhao Zhanyong
    School of Materials Science and Engineering, North University of China
  • Wang Zhi
    School of Materials Science and Engineering, Shenyang University of Technology
  • Li Weirong
    Engineering Research Center of Continuous Extrusion, Dalian Jiaotong University Dongguan EONTEC Co. Ltd.
  • Yu Jiangwei
    Key Laboratory of Lightweight Structural Materials Liaoning Province, Northeastern University
  • Gao Fei
    Key Laboratory of Lightweight Structural Materials Liaoning Province, Northeastern University
  • Cai Minghui
    Key Laboratory of Lightweight Structural Materials Liaoning Province, Northeastern University
  • Li Yanfang
    Engineering Research Center of Continuous Extrusion, Dalian Jiaotong University
  • Iskandarovich Giyasov S.
    Department of Urology, Tashkent Medical Academy
  • Tie Di
    Engineering Research Center of Continuous Extrusion, Dalian Jiaotong University Dongguan EONTEC Co. Ltd.

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抄録

<p>An as-cast Mg–6Zn–0.9Zr–0.9Nd (mass%) alloy was isothermally heat treated to form semi-solid microstructure, and its corrosion behaviors before and after heat treatment were revealed. During the isothermal heat treatment, the microstructure transformed into homogenous spheroidized structure, and the liquid phase presented network-shaped morphology. The electrochemical results showed that there is no passivation behavior and obvious local corrosion in the semi-solid formed alloy, and homogeneous general corrosion is the primary corrosion form. The network-shaped liquid phase prevented the flow of corrosion media between solid phases, and therefore inhibited the formation of pitting corrosion.</p>

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 64 (12), 2845-2848, 2023-12-01

    公益社団法人 日本金属学会

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