This file was created by the TYPO3 extension bib --- Timezone: CET Creation date: 2021-01-27 Creation time: 09-35-36 --- Number of references 9 article Geandier:2014b Journal of heat treatments and materials 2014 69 54--59 Département SI2M : Microstructures et Contraintes 10.3139/105.110206 G.Geandier M.Dehmas M.Mourot E.Aeby-Gautier S.Denis O.Martin N.Karnatak article Grosseau-Poussard:2014 Advances in Science and Technology 2014 91 100???107 Département SI2M : Microstructures et Contraintes http://dx.doi.org/10.4028/www.scientific.net/AST.91.100 Trans Tech Publications 1662-0356 10.4028/www.scientific.net/ast.91.100 Jean LucGrosseau-Poussard MathieuGuerain PhilippeGoudeau GuillaumeGeandier BenoitPanicaud NobumichiTamura MartinKunz CatherineDejoie Jean SebastienMicha article Geandier:2013 Materials Science Forum 2013 768-769 313-320 Département SI2M : Microstructures et Contraintes 10.4028/www.scientific.net/MSF.768-769.313 G.Geandier M.Dehmas M.Mourot E.Aeby-Gautier S.Denis O.Martin N.Karnatak article Settefrati:2013 Materials Science Forum 2013 738-739 97-102 proceedings Conférence ESOMAT 2012 Département SI2M : Microstructures et Contraintes doi:10.4028/www.scientific.net/MSF.738-739.97 A.Settefrati E.Aeby-Gautier B.Appolaire M.Dehmas G.Geandier G.Khelifat article KOUTSOUKIS:2013 Material Science and Engineering A 2013 561 477--485 Département SI2M : Microstructures et Contraintes DOI: http://dx.doi.org/10.1016/j.msea.2012.10.066 T.Koutsoukis A.Redjaïmia G.Fourlaris article Dehmas2012 Matériaux et techniques 2012 100 103-105 Département SI2M : Microstructures et Contraintes www.mattech-journal.org Edp sciences MoukraneDehmas MatthieuSalib GuillaumeGeandier ElisabethGautier NikhilKarnatak OlivierMartin article dehmas:2011c Solid State Phenomena 2011 172-174 396-401 Département SI2M : Microstructures et Contraintes M.Dehmas J.Kovac E.Aeby-Gautier B.Appolaire B.Denand J.Da-Costa-Teixeira article Koutsoukis:2011 Solid State Phenomena 2011 172-174 Part 1 493-498 Superaustenitic stainless steels exhibit excellent corrosion resistance, at a wide variety of exposure temperatures, especially in chloride containing environments, coupled with desirable mechanical properties. Previous studies have shown that these steels are prone to precipitation of secondary phases, such as sigma phase (sigma), chi phase (chi). Laves-phase, carbides, nitrides or secondary austenite, when exposed at elevated temperatures, directly affecting their mechanical properties and corrosion behaviour. A detailed study of the effect of isothermal ageing on the microstructure of S32654 (Fe-24Cr-21Ni-7Mo-0.5N-0.013C) and S31254 (Fe-20Cr-18Ni-6Mo-0.2N-0.012C) superaustenitic stainless steels was carried out. Samples were aged within the temperature range of 650 degrees C to 950 degrees C for times up to 3000 h. Following ageing, precipitation of secondary phases was clearly observed with precipitates varying in volume fraction, size, shape and spatial distribution. Several secondary phases were identified via transmission electron microscopy (TEM) and electron diffraction (ED). The orientation relationships between the austenitic matrix and the secondary phases were identified. Interaction and also phase transformation among different types of precipitates, such as between precipitates and the austenitic matrix were observed and an attempt of understanding these phase transformations was carried out. Département SI2M : Microstructures et Contraintes Brechet, Y and Clouet, E and Deschamps, A and Finel, A and Soisson, F Solid State Phenomena SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2 Mat & Process Sci & Engn Lab; CEA, Tranverse Programme Adv Mat; French Aerospace Lab; Inst Chem, Natl Ctr Sci Res; French Phase Field Network; Lab Etude Microstructures 1012-0394 10.4028/www.scientific.net/SSP.172-174.493 T.Koutsoukis A.Redjaïmia G.Fourlaris article Mourot:2011 Solid State Phenomena 2011 172-174 747-752 Département SI2M : Microstructures et Contraintes doi:10.4028/www.scientific.net/SSP.172-174.747 MickaelMourot AliceCourleux MoukraneDehmas ElisabethGautier GuillaumeGeandier OlivierDezellus JeanClaude Viala OlivierMartin NikhilKarnatak FredericDanoix