Microstructure and corrosion behavior of AZ31 alloys prepared by dual directional extrusion

Liwei Lu, Tianmo Liu, Jian Chen, Zhongchang Wang

    研究成果: Article査読

    18 被引用数 (Scopus)

    抄録

    Microstructure evolution and corrosion behavior of Mg alloys AZ31 processed by a severe plastic deformation technique, dual directional extrusion (DDE) are reported. The forward extrusion (FE) technique is also taken into account on the AZ31 alloys for comparison. Mean grains for the samples extruded by the DDE are refined significantly with increased extrusion ratio and lowered extrusion temperature, which as a result enhance resistance against salt corrosion. The alloys extruded by the DDE exhibit better corrosion resistance than those by the FE, which is explained by the finer grains, more homogeneous microstructure, and lower density of dislocation in the DDE-ed samples owing to the dynamic recrystallization.

    本文言語English
    ページ(範囲)687-693
    ページ数7
    ジャーナルMaterials and Design
    36
    DOI
    出版ステータスPublished - 2012 4月

    ASJC Scopus subject areas

    • 機械工学
    • 材料力学
    • 材料科学(全般)

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