Hydrogen embrittlement of prestressing cables

被引：68
作者：
Perrin, M. [1 ,2 ]
Gaillet, L. [1 ]
Tessier, C. [1 ]
Idrissi, H. [2 ]
机构：
[1] Ctr Nantes, Div MACOA, Lab Cent Ponts & Chaussees, F-44341 Bouguenais, France
[2] INSA Lyon, CNRS, UMR 5510, Lab MATEIS,RI2S, F-69621 Villeurbanne, France
来源：
CORROSION SCIENCE | 2010年 / 52卷 / 06期
关键词：
Low alloy steel; EIS; SEM; Hydrogen embrittlement; Stress corrosion; STRESS-CORROSION CRACKING; DRAWN STEEL WIRES; ACOUSTIC-EMISSION; RESIDUAL-STRESSES; PITTING CORROSION; STAINLESS-STEEL; ASSISTED CRACKING; DUCTILITY;
D O I：
10.1016/j.corsci.2010.02.041
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, hydrogen embrittlement is simulated in an accelerated way with an ammonium thiocyanate media test. Damage evolution of prestressing strand is monitored with electrochemical measurements and with acoustic emission (AE). Three stages of the damage mechanism are identified with different acoustic activities. For each stage, three pattern parameters coming from AE analyse are highlighted to distinguish each emitting stage. To have a precise description of damage evolution of prestressing cables during the hydrogen embrittlement test, some interrupted tests have been used. For each interruption, metallographic observations enable to characterize degradation mechanisms. Finally, each acoustic stage has been correlated to a degradation mechanism. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1915 / 1926
页数：12
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