The Effect of a Sc : Zr Ratio on the Corrosion Resistance of Cast Al-Mg Alloys

被引：1

作者：

Kozlova, N. A. ^{[1
]}

Nokhrin, A. V. ^{[1
]}

Chuvil'deev, V. N. ^{[1
]}

Shadrina, Ya. S. ^{[1
]}

Bobrov, A. A. ^{[1
]}

Chegurov, M. K. ^{[1
]}

机构：

[1] Lobachevsky Natl Res State Univ, Nizhnii Novgorod 603022, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2024年 / 125卷 / 08期

基金：

俄罗斯科学基金会;

关键词：

Al-Mg alloy; corrosion; scandium; zirconium; Al-3(Sc; Zr); particles; MECHANICAL-PROPERTIES; HEAT-TREATMENT; BEHAVIOR; MICROSTRUCTURE; SCANDIUM; DIFFUSION; ADDITIONS; AL3SC;

D O I：

10.1134/S0031918X24601550

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The results of the studies of the corrosion resistance of Al-Mg alloys with different contents of magnesium and different ratios of scandium and zirconium (Sc : Zr) have been presented. The alloys have been obtained using induction casting. The effect of the annealing temperature on the microhardness and specific electrical resistivity of cast Al-Mg-Sc-Zr alloys has been studied. Electrochemical corrosion tests were performed in an environment simulating intergranular corrosion in aluminum alloys. It has been shown that an increase in the content of magnesium results in an increase in the corrosion current, and a decrease in the content of scandium (under the condition of Sc + Zr = const) results in a decrease in the rate of intergranular corrosion. It has been established that the dependence of the corrosion current density on the annealing temperature of Al-Mg-Sc-Zr alloys with an increased Sc : Zr ratio exhibits a non-monotonic pattern with a maximum.

引用

页码：851 / 861

页数：11

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