Corrosion behavior of a friction stir processed rare-earth added magnesium alloy

被引：149

作者：

Argade, G. R. ^{[2
,3
]}

Kandasamy, K. ^{[1
]}

Panigrahi, S. K. ^{[2
,3
]}

Mishra, R. S. ^{[1
,2
,3
]}

机构：

[1] Univ N Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA

[2] Missouri Univ Sci & Technol, Ctr Frict Stir Proc, Rolla, MO 65409 USA

[3] Missouri Univ Sci & Technol, Dept Mat Sci & Engn, Rolla, MO 65409 USA

来源：

CORROSION SCIENCE | 2012年 / 58卷

关键词：

Magnesium; Polarization; Weight loss; SEM; ELECTROCHEMICAL NOISE; SUSCEPTIBILITY; MG; RESISTANCE; WE43;

D O I：

10.1016/j.corsci.2012.01.007

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Effect of grain refinement and heat treatment on corrosion behavior of a friction stir processed Mg-Y-RE alloy was studied. The ennoblement of pitting potential by similar to 250 mV vs. SCE of processed samples as compared to parent alloy was attributed to grain refinement and uniform second phase distribution as a result of friction stir processing. Lower currents and positive open circuit potentials were observed in friction stir processed samples under free corroding conditions. Friction stir processing prior to peak hardening resulted in improved pitting potential when compared to the peak aged and processed samples. Electrochemical testing and constant immersion testing showed differing trends. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：321 / 326

页数：6

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