陈志永

教授 博士生导师 硕士生导师

入职时间:1999-08-01

所在单位:材料科学与工程学院

学历:博士研究生毕业

办公地点:湖南省长沙市岳麓区中南大学校本部化学楼205#

性别:男

联系方式:czysh@netease.com

学位:博士学位

在职信息:在职

毕业院校:中南大学

   
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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

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发表时间:2018-02-15

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