Correlation study on general and accelerated corrosion of the welded structure of aluminum alloy 2219 in N₂O₄

Abstract

Purpose

This paper aims to present a correlation study on general and accelerated corrosion of the welded structure of aluminum alloy 2219 in N₂O₄.

Design/methodology/approach

Corrosion experiments of the Tungsten Inert Gas (TIG)-welded aluminum alloy structure were conducted under both mild and accelerated corrosion conditions by changing the water content in N₂O₄.

Findings

The experimental results indicated that both general and accelerated corrosion processes of the TIG-welded structure of aluminum alloy 2219 in N₂O₄ followed the linear equation ΔW = A + Bt, and the corrosion products were unchanged regardless of the water content in the N₂O₄ solution.

Originality/value

The weight loss comparison method is used to identify the structure of the conventional aluminum welding and aluminum welding structure corrosion dinitrogen tetroxide in nitric acid accelerated corrosion relationship.

Citation

Feng, Y., Huang, Z., Tian, G. and Jin, G. (2015), "Correlation study on general and accelerated corrosion of the welded structure of aluminum alloy 2219 in N₂O₄", Anti-Corrosion Methods and Materials, Vol. 62 No. 3, pp. 136-142. https://doi.org/10.1108/ACMM-01-2015-1498