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Dive into the research topics where Thierry Cassagne is active.

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Featured researches published by Thierry Cassagne.


Corrosion | 2011

Acoustic Emission Monitoring of Wet H2S Cracking of Linepipe Steels: Application to Hydrogen-Induced Cracking and Stress-Oriented Hydrogen-Induced Cracking

Véronique Smanio; Jean Kittel; Marion Fregonese; Thierry Cassagne; Bernard Normand; F. Ropital

Abstract Acoustic emission (AE) was used for monitoring steel cracking during exposure to wet hydrogen sulfide (H2S) environments. A method for filtering AE data related to hydrogen-induced cracking (HIC) was presented and applied for several case studies. In a series of tests on unstressed sweet service steels, evolution of AE indicated three successive HIC phases. An initial incubation period corresponded to hydrogen entry in the steel, during which no cracking occurred. Then two cracking phases were detected. The first was associated with decohesion of weak steel interphases. The second was identified as crack propagation under high internal hydrogen pressure. Crack propagation decreased and eventually ceased over time. Analysis of AE data was then used to evaluate the extent of HIC after sour exposure. Correlation was found when appropriate data filtering was applied. AE analysis was also applied to sour service steels under an applied load. The first steel exhibited HIC AE signals. Its fracture surfa...


Corrosion Science | 2011

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

Véronique Smanio; Marion Fregonese; Jean Kittel; Thierry Cassagne; F. Ropital; Bernard Normand


Ninth International Symposium on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors | 2013

Stress Corrosion Crack Growth Rate Measurements in Alloys 600 and 182 in Primary Water Loops Under Constant Load

Thierry Cassagne; Didier Caron; Jacques Daret; Yves Lefèvre


Corrosion Science | 2013

pH prediction in concentrated aqueous solutions under high pressure of acid gases and high temperature

C. Plennevaux; N. Ferrando; Jean Kittel; Marion Fregonese; Bernard Normand; Thierry Cassagne; F. Ropital; M. Bonis


Journal of Materials Science | 2010

Wet hydrogen sulfide cracking of steel monitoring by acoustic emission: discrimination of AE sources

Véronique Smanio; Marion Fregonese; Jean Kittel; Thierry Cassagne; Francois Ropital; Bernard Normand


Corrosion | 2005

A Review On Hydrogen Embrittlement Of Duplex Stainless Steels

Thierry Cassagne; Freddy Embrittlement


Corrosion | 2010

Replacing Titanium In Sea Water Plate Heat Exchangers

Thierry Cassagne; Patrice Houlle; Delphine Zuili; Pascal Bluzat; Jean-Michel Corrieu; Nicolas Larché


Corrosion | 2008

Hydrogen Induced Cracking (Hic) - Laboratory Testing Assessment Of Low Alloy Steel Linepipe

Jean Kittel; J.W. Martin; Thierry Cassagne; Christoph Bosch


Corrosion | 2003

Limitations of 17-4 PH Metallurgical, Mechanical and Corrosion Aspects

Thierry Cassagne; Michel Bonis; Claude Duret; Jean Louis Crolet


Corrosion | 2014

Corrosion Resistance of UNS S31803 Duplex Stainless Steel in Sour Environments

Sandra Le Manchet; Amélie Fanica; Christian Lojewski; Thierry Cassagne

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Bernard Normand

Institut national des sciences Appliquées de Lyon

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