The effect of manganese and chromium on the characteristics of Al-3-5%Mg wrought alloys. (Report 3)

Corrosion resistivity (Part 2) Laboratory test with the sample of 0.5mm thickness

Abstract

The change of tensile properties of the sample (0.5mm thick) under soft or stabilized state during immersion with or without stress in salt-water for up to 12 months, was investigated for the purpose of clarifying the cffect of Mn, Cr, Fe, Si, Cu, Zn and Ti as wellas that of rolling condition on the corrosion resistivity of Al-3-5% Mg alloys.
The results obtained are as follows:
1. Mn, Cr, Fe or Cu decreases the sesistivity.
2. The effect of Mg, Si, Cu, Zn or Ti, on hot working temperatureor the preheating condition of ingot is not so remarkable.