Corrosion-induced hydrogen embrittlement in aluminum alloy 2024

被引：130

作者：

Kamoutsi, H.

Haidemenopoulos, G. N. ^{[1
]}

Bontozoglou, V.

Pantelakis, S.

机构：

[1] Univ Thessaly, Dept Mech & Ind Engn, Volos 38334, Greece

[2] Univ Patras, Dept Mech & Aeronaut Engn, Rion 26110, Greece

来源：

CORROSION SCIENCE | 2006年 / 48卷 / 05期

关键词：

aluminium; 2024-T351; AFM; SEM; exfoliation corrosion; hydrogen embrittlement; hydrogen trapping; fractography;

D O I：

10.1016/j.corsci.2005.05.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present paper focuses on the observed corrosion-induced embrittlement of alloy 2024 and tries to answer the key question on whether the observed embrittlement is attributed to hydrogen uptake and trapping in the material. Hydrogen is produced during the corrosion process and is being trapped in distinct energy states, which correspond to different microstructural sites. The formation of a hydrogen-affected zone beneath the corrosion layer is supported by fractographic analysis. Removal of the corrosion layer leads to complete restoration of yield strength but only partial restoration of ductility. Additional heat treatment to release the trapped hydrogen leads only to complete restoration of ductility. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1209 / 1224

页数：16

共 26 条

[1]

[Anonymous], 1992, HYDROGEN EMBRITTLEME

[2] HYDROGEN DIFFUSION IN AL-LI ALLOYS [J].