Kinetics study of the spinodal decomposition in the Fe-30.8Cr-12.2Co alloy by Mössbauer spectrometry
Identifieur interne : 000300 ( PascalFrancis/Checkpoint ); précédent : 000299; suivant : 000301Kinetics study of the spinodal decomposition in the Fe-30.8Cr-12.2Co alloy by Mössbauer spectrometry
Auteurs : S. Alleg [Algérie] ; B. Bouzabata [Algérie] ; J. M. Greneche [France]Source :
- Journal of alloys and compounds [ 0925-8388 ] ; 1999.
Descripteurs français
- Pascal (Inist)
- Transformation phase, Décomposition spinodale, Vieillissement, Spectrométrie Mössbauer, Champ magnétique hyperfin, Dépendance température, Cinétique, Dépendance temps, Energie activation, Alliage base fer, Chrome alliage, Cobalt alliage, Etude expérimentale, Alliage ternaire, 8130H, Alliage Fe57Cr31Co12, Co Cr Fe, Temps incubation.
English descriptors
- KwdEn :
Abstract
The phase transformation in the Fe-30.8Cr-12.2Co alloy has been studied by Mössbauer spectrometry as a function of the aging time at the temperatures 520, 560 and 600°C, It is found that the transformation occurs without any incubation time, consistent with a spinodal decomposition and that the average hyperfine field increases indicating changes of iron environments. The decomposition rate is influenced by the aging temperature and increases at higher temperatures. The kinetics of transformation can be described by an Avrami parameter smaller than 0.2 and a value of the activation energy close to 17 kJ mol- 1.
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Bouzabata</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Unité de Recherche Matériaux-Metatturgie Université de Annaba B.P.</s1><s2>12 (23000), Annaba</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Unité de Recherche Matériaux-Metatturgie Université de Annaba B.P.</wicri:noRegion></affiliation></author><author><name sortKey="Greneche, J M" sort="Greneche, J M" uniqKey="Greneche J" first="J. M." last="Greneche">J. M. Greneche</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Physique de l'Etat Condensé UPRESA-CNRS 6087, Université du Maine Faculté des Sciences</s1><s2>72085 Le Mans</s2><s3>FRA</s3><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Pays de la Loire</region><settlement type="city">Le Mans</settlement></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">99-0061270</idno><date when="1999">1999</date><idno type="stanalyst">PASCAL 99-0061270 INIST</idno><idno type="RBID">Pascal:99-0061270</idno><idno type="wicri:Area/PascalFrancis/Corpus">000309</idno><idno type="wicri:Area/PascalFrancis/Curation">000394</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000300</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000300</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Kinetics study of the spinodal decomposition in the Fe-30.8Cr-12.2Co alloy by Mössbauer spectrometry</title><author><name sortKey="Alleg, S" sort="Alleg, S" uniqKey="Alleg S" first="S." last="Alleg">S. Alleg</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Unité de Recherche Matériaux-Metatturgie Université de Annaba B.P.</s1><s2>12 (23000), Annaba</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Unité de Recherche Matériaux-Metatturgie Université de Annaba B.P.</wicri:noRegion></affiliation></author><author><name sortKey="Bouzabata, B" sort="Bouzabata, B" uniqKey="Bouzabata B" first="B." last="Bouzabata">B. Bouzabata</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Unité de Recherche Matériaux-Metatturgie Université de Annaba B.P.</s1><s2>12 (23000), Annaba</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Unité de Recherche Matériaux-Metatturgie Université de Annaba B.P.</wicri:noRegion></affiliation></author><author><name sortKey="Greneche, J M" sort="Greneche, J M" uniqKey="Greneche J" first="J. M." last="Greneche">J. M. Greneche</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Physique de l'Etat Condensé UPRESA-CNRS 6087, Université du Maine Faculté des Sciences</s1><s2>72085 Le Mans</s2><s3>FRA</s3><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Pays de la Loire</region><settlement type="city">Le Mans</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of alloys and compounds</title><title level="j" type="abbreviated">J. alloys compd.</title><idno type="ISSN">0925-8388</idno><imprint><date when="1999">1999</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of alloys and compounds</title><title level="j" type="abbreviated">J. alloys compd.</title><idno type="ISSN">0925-8388</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activation energy</term><term>Aging</term><term>Chromium alloys</term><term>Cobalt alloys</term><term>Experimental study</term><term>Hyperfine magnetic field</term><term>Incubation time</term><term>Iron base alloys</term><term>Kinetics</term><term>Moessbauer spectroscopy</term><term>Phase transformations</term><term>Spinodal decomposition</term><term>Temperature dependence</term><term>Ternary alloys</term><term>Time dependence</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Transformation phase</term><term>Décomposition spinodale</term><term>Vieillissement</term><term>Spectrométrie Mössbauer</term><term>Champ magnétique hyperfin</term><term>Dépendance température</term><term>Cinétique</term><term>Dépendance temps</term><term>Energie activation</term><term>Alliage base fer</term><term>Chrome alliage</term><term>Cobalt alliage</term><term>Etude expérimentale</term><term>Alliage ternaire</term><term>8130H</term><term>Alliage Fe57Cr31Co12</term><term>Co Cr Fe</term><term>Temps incubation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The phase transformation in the Fe-30.8Cr-12.2Co alloy has been studied by Mössbauer spectrometry as a function of the aging time at the temperatures 520, 560 and 600°C, It is found that the transformation occurs without any incubation time, consistent with a spinodal decomposition and that the average hyperfine field increases indicating changes of iron environments. The decomposition rate is influenced by the aging temperature and increases at higher temperatures. The kinetics of transformation can be described by an Avrami parameter smaller than 0.2 and a value of the activation energy close to 17 kJ mol<sup>-</sup> <sup>1</sup>.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0925-8388</s0></fA01><fA03 i2="1"><s0>J. alloys compd.</s0></fA03><fA05><s2>282</s2></fA05><fA06><s2>1-2</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Kinetics study of the spinodal decomposition in the Fe-30.8Cr-12.2Co alloy by Mössbauer spectrometry</s1></fA08><fA11 i1="01" i2="1"><s1>ALLEG (S.)</s1></fA11><fA11 i1="02" i2="1"><s1>BOUZABATA (B.)</s1></fA11><fA11 i1="03" i2="1"><s1>GRENECHE (J. 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Alleg</name></noRegion><name sortKey="Bouzabata, B" sort="Bouzabata, B" uniqKey="Bouzabata B" first="B." last="Bouzabata">B. Bouzabata</name></country><country name="France"><region name="Pays de la Loire"><name sortKey="Greneche, J M" sort="Greneche, J M" uniqKey="Greneche J" first="J. M." last="Greneche">J. M. Greneche</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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