Enhanced strength and corrosion resistance of Mg-Gd-Y-Zr alloy with ultrafine grains
发布时间：2021-10-21
点击次数：
DOI码：10.1016/j.matlet.2017.11.096
发表刊物：Materials Letters
关键字：Mg-Gd-Y-Zr alloy; Microstructure; Strength; Corrosion
摘要：Simultaneous improvements in strength and corrosion resistance of Mg-Gd-Y-Zr alloy were realized through forging at room temperature with formation of ultrafine grained (UFG) structure. Compared with its coarse grained (CG) counterpart, the UFG sample exhibits an enhancement of 211 MPa (103%) in yield strength and a reduction of 0.644 × 10−5 A/cm2 (25%) in corrosion current density. Effect of microstructure on the mechanical property was quantitatively investigated, revealing a good coincidence of the experimental result with the calculated one based on Bailey-Hirsch equation. The improvement in corrosion resistance is attributed to the formation of sub-grain boundaries.
合写作者：S.Y. Xu, C.M. Liu, Y.H. Gao*, S.N. Jiang, Z.Y. Chen
第一作者：Y.C. Wan
文献类型：J
卷号：213
页面范围：274-277
ISSN号：0167-577X
是否译文：否
发表时间：2018-02-15