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

Yuanbo Feng (Department 603, Xi’an High Tech Institute, Xi'an, China.)
Zhiyong Huang (Department 603, Xi’an High Tech Institute, Xi'an, China.)
Gan Tian (Department 603, Xi’an High Tech Institute, Xi'an, China.)
Guofeng Jin (Department 603, Xi’an High Tech Institute, Xi'an, China.)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 5 May 2015

259

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.

Keywords

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

Publisher

:

Emerald Group Publishing Limited

Copyright © 2015, Emerald Group Publishing Limited

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