Contribution of acoustic emission to the understanding of sulfide stress cracking of low alloy steels

被引:37
|
作者
Smanio, Veronique [2 ,3 ]
Fregonese, Marion [1 ]
Kittel, Jean [2 ]
Cassagne, Thierry [3 ]
Ropital, Francois [2 ]
Normand, Bernard [1 ]
机构
[1] INSA Lyon, MATEIS UMR5510, F-69621 Villeurbanne, France
[2] IFP Energies Nouvelles, F-69360 Solaize, France
[3] TOTAL, F-64018 Pau, France
关键词
Steel; Hydrogen embrittlement; MONITORING PITTING CORROSION; AUSTENITIC STAINLESS-STEEL; ASSISTED CRACKING; CREVICE CORROSION; INITIATION; ACID;
D O I
10.1016/j.corsci.2011.07.041
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The acoustic emission technique was applied to standard tests devoted to evaluate sulfide stress cracking susceptibility of steels for oil and gas industry. The mapping of the density of AE signals vs. their location on the specimen gauge length as a function of time allowed early detection of cracking, and gave meaningful information on incubation times and propagation rates. Sulfide stress cracking initiation was correlated with the presence of critical surface defects. A mechanism involving plastic strain and/or metal dissolution was proposed to account for crack propagation. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3942 / 3949
页数:8
相关论文
共 50 条