Corrosion fatigue and mechanochemical behavior of magnesium alloys

被引：0

作者：

Eliezer, A ^{[1
]}

Gutman, EM ^{[1
]}

Abramov, E ^{[1
]}

Aghion, E ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel

来源：

CORROSION REVIEWS | 1998年 / 16卷 / 1-2期

关键词：

magnesium alloys; corrosion fatigue; mechanochemistry; electrochemical corrosion;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Corrosion fatigue, mechanical properties and mechanochemical effect (the effect of mechanical deformation on the surface electrochemical reactions) were investigated in some Mg-based allays supposing that aluminum alloying influences them. A simple method of testing mechanoelectrochemical behavior and corrosion fatigue of alloys was developed. Potentiostatic polarization measurements on stressed electrode were carried out in chloride electrolyte. The correlation between the mechanoelectrochemical behavior and strain hardening stages is observed during plastic deformation. Maximum mechanochemical effect is achieved under intense strain hardening in the initial portion of this stage. The highest resistance to developing mechanochemical effect is obtained for the alloys with the lowest Al content. The experimental observations are explained theoretically. The features of the mechanoelectrochemical behavior of different Mg-alloys are confirmed by corrosion fatigue tests.

引用

页码：1 / 26

页数：26

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