Electron microscopy analysis of grain boundaries and intergranular corrosion in aged Al-Mg-Si alloy doped with 0.05 wt% Cu

被引：25

作者：

Bartawi, Emad H. ^{[1
]}

Mishin, Oleg V. ^{[1
]}

Shaban, Ghada ^{[1
]}

Nordlien, Jan H. ^{[2
]}

Ambat, Rajan ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Civil & Mech Engn, DK-2800 Lyngby, Denmark

[2] Hydro Innovat & Technol, Hydrovegen 160, N-4265 Havik, Norway

来源：

CORROSION SCIENCE | 2022年 / 209卷

关键词：

Alloy; Aluminium; SEM; STEM; TEM; Intergranular corrosion; THICKNESS TEXTURE GRADIENTS; COPPER CONTENT; STRESS-CORROSION; BEHAVIOR; CHARACTER; EXTRUSION;

D O I：

10.1016/j.corsci.2022.110758

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure and intergranular corrosion have been studied in an extruded and aged Al-Mg-Si alloy doped with 0.05 wt% Cu after immersing the material in an acidified salt solution. Intergranular corrosion takes place in this alloy despite the low Cu content. Electron microscopy analysis of the surface exposed to the corrosive environment does not reveal any significant difference in the fraction of corroded random and coincident site lattice high angle boundaries. Low angle boundaries with misorientations below 10 degrees are found to be consistently more resistant to intergranular corrosion than any other boundary type.

引用

页数：10

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