Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys
Identifieur interne : 000A37 ( Istex/Corpus ); précédent : 000A36; suivant : 000A38Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys
Auteurs : L. Ben Mostefa ; G. Saindrenan ; M. P. Solignac ; J. P. ColinSource :
- Acta Metallurgica et Materialia [ 0956-7151 ] ; 1991.
Abstract
This work is a contribution to understand the hot ductility drop mechanism of the Fe36Ni alloys (Invar). In contrast to the literature data, the present results show that sulfur alone causes a hot ductility loss. The precipitates, especially BN, only increase the damage of the material by multiplying the cavity nucleation sites. The nucleation of intergranular microcracks results from the decrease of the grain boundary cohesion associated with both the interfacial sulfur segregation and the contribution of grain boundary sliding to plastic deformation. Sulfur strongly segregates on the tip sof these internal cracks and decreases the propagation energy of cracks, thus leading to the material damage. The ductility recovery at high temperatures results from grain boundary migration and only dynamic recrystallization permits such a motion.
Url:
DOI: 10.1016/0956-7151(91)90044-2
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Ben Mostefa</name><affiliation><mods:affiliation>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</mods:affiliation></affiliation><affiliation><mods:affiliation>†Present address: I.A.P. 35000 Boumerdés Algeria.</mods:affiliation></affiliation></author><author><name sortKey="Saindrenan, G" sort="Saindrenan, G" uniqKey="Saindrenan G" first="G." last="Saindrenan">G. Saindrenan</name><affiliation><mods:affiliation>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</mods:affiliation></affiliation></author><author><name sortKey="Solignac, M P" sort="Solignac, M P" uniqKey="Solignac M" first="M. P." last="Solignac">M. P. Solignac</name><affiliation><mods:affiliation>Imphy S.A., Centre de Recherces, 58160 Imphy, France</mods:affiliation></affiliation></author><author><name sortKey="Colin, J P" sort="Colin, J P" uniqKey="Colin J" first="J. P." last="Colin">J. P. Colin</name><affiliation><mods:affiliation>Imphy S.A., Centre de Recherces, 58160 Imphy, France</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Acta Metallurgica et Materialia</title><title level="j" type="abbrev">AMMOLD</title><idno type="ISSN">0956-7151</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1991">1991</date><biblScope unit="volume">39</biblScope><biblScope unit="issue">12</biblScope><biblScope unit="page" from="3111">3111</biblScope><biblScope unit="page" to="3118">3118</biblScope></imprint><idno type="ISSN">0956-7151</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0956-7151</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This work is a contribution to understand the hot ductility drop mechanism of the Fe36Ni alloys (Invar). In contrast to the literature data, the present results show that sulfur alone causes a hot ductility loss. The precipitates, especially BN, only increase the damage of the material by multiplying the cavity nucleation sites. The nucleation of intergranular microcracks results from the decrease of the grain boundary cohesion associated with both the interfacial sulfur segregation and the contribution of grain boundary sliding to plastic deformation. Sulfur strongly segregates on the tip sof these internal cracks and decreases the propagation energy of cracks, thus leading to the material damage. The ductility recovery at high temperatures results from grain boundary migration and only dynamic recrystallization permits such a motion.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>L. Ben Mostefa</name><affiliations><json:string>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</json:string><json:string>†Present address: I.A.P. 35000 Boumerdés Algeria.</json:string></affiliations></json:item><json:item><name>G. Saindrenan</name><affiliations><json:string>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</json:string></affiliations></json:item><json:item><name>M.P. Solignac</name><affiliations><json:string>Imphy S.A., Centre de Recherces, 58160 Imphy, France</json:string></affiliations></json:item><json:item><name>J.P. Colin</name><affiliations><json:string>Imphy S.A., Centre de Recherces, 58160 Imphy, France</json:string></affiliations></json:item></author><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>This work is a contribution to understand the hot ductility drop mechanism of the Fe36Ni alloys (Invar). In contrast to the literature data, the present results show that sulfur alone causes a hot ductility loss. The precipitates, especially BN, only increase the damage of the material by multiplying the cavity nucleation sites. The nucleation of intergranular microcracks results from the decrease of the grain boundary cohesion associated with both the interfacial sulfur segregation and the contribution of grain boundary sliding to plastic deformation. Sulfur strongly segregates on the tip sof these internal cracks and decreases the propagation energy of cracks, thus leading to the material damage. The ductility recovery at high temperatures results from grain boundary migration and only dynamic recrystallization permits such a motion.</abstract><qualityIndicators><score>6.085</score><pdfVersion>1.4</pdfVersion><pdfPageSize>540 x 771 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>0</keywordCount><abstractCharCount>848</abstractCharCount><pdfWordCount>4085</pdfWordCount><pdfCharCount>25417</pdfCharCount><pdfPageCount>8</pdfPageCount><abstractWordCount>125</abstractWordCount></qualityIndicators><title>Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys</title><pii><json:string>0956-7151(91)90044-2</json:string></pii><genre><json:string>research-article</json:string></genre><host><volume>39</volume><pii><json:string>S0956-7151(00)X0037-X</json:string></pii><pages><last>3118</last><first>3111</first></pages><issn><json:string>0956-7151</json:string></issn><issue>12</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><title>Acta Metallurgica et Materialia</title><publicationDate>1991</publicationDate></host><categories><inist><json:string>sciences appliquees, technologies et medecines</json:string><json:string>sciences exactes et technologie</json:string><json:string>terre, ocean, espace</json:string><json:string>geophysique externe</json:string></inist></categories><publicationDate>1991</publicationDate><copyrightDate>1991</copyrightDate><doi><json:string>10.1016/0956-7151(91)90044-2</json:string></doi><id>453BA49612F15124F1D052B1487ED373EB0F3A67</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/453BA49612F15124F1D052B1487ED373EB0F3A67/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/453BA49612F15124F1D052B1487ED373EB0F3A67/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/453BA49612F15124F1D052B1487ED373EB0F3A67/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a">Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>ELSEVIER</p></availability><date>1991</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a">Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys</title><author xml:id="author-0000"><persName><forename type="first">L.</forename><surname>Ben Mostefa</surname></persName><affiliation>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</affiliation><affiliation>†Present address: I.A.P. 35000 Boumerdés Algeria.</affiliation></author><author xml:id="author-0001"><persName><forename type="first">G.</forename><surname>Saindrenan</surname></persName><affiliation>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</affiliation></author><author xml:id="author-0002"><persName><forename type="first">M.P.</forename><surname>Solignac</surname></persName><affiliation>Imphy S.A., Centre de Recherces, 58160 Imphy, France</affiliation></author><author xml:id="author-0003"><persName><forename type="first">J.P.</forename><surname>Colin</surname></persName><affiliation>Imphy S.A., Centre de Recherces, 58160 Imphy, France</affiliation></author><idno type="istex">453BA49612F15124F1D052B1487ED373EB0F3A67</idno><idno type="DOI">10.1016/0956-7151(91)90044-2</idno><idno type="PII">0956-7151(91)90044-2</idno></analytic><monogr><title level="j">Acta Metallurgica et Materialia</title><title level="j" type="abbrev">AMMOLD</title><idno type="pISSN">0956-7151</idno><idno type="PII">S0956-7151(00)X0037-X</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1991"></date><biblScope unit="volume">39</biblScope><biblScope unit="issue">12</biblScope><biblScope unit="page" from="3111">3111</biblScope><biblScope unit="page" to="3118">3118</biblScope></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1991</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>This work is a contribution to understand the hot ductility drop mechanism of the Fe36Ni alloys (Invar). In contrast to the literature data, the present results show that sulfur alone causes a hot ductility loss. The precipitates, especially BN, only increase the damage of the material by multiplying the cavity nucleation sites. The nucleation of intergranular microcracks results from the decrease of the grain boundary cohesion associated with both the interfacial sulfur segregation and the contribution of grain boundary sliding to plastic deformation. Sulfur strongly segregates on the tip sof these internal cracks and decreases the propagation energy of cracks, thus leading to the material damage. The ductility recovery at high temperatures results from grain boundary migration and only dynamic recrystallization permits such a motion.</p></abstract><abstract xml:lang="fr"><p>Résumé: Ce travail contribue à expliquer le mécanisme de la perte de ductilité à chaud des alliages FeNi36 (Invar). Contrairement aux données de la littérature, les résultats montrent que le soufre seul provoque l'endommagement du matériau. Les précipités, particulièrement BN, n'interviennent qu'en multipliant les sites d'initiation des cavités. La germination des microfissures intergranulaires est due à l'affaiblissement de la cohésion des joints de grains associée à la ségrégation interfaciale du soufre et à l'augmentation de la contribution du glissement intergranulaire à la déformation plastique avec la température. La baisse de ductilité du matériau résulte de la propagation des microfissures facilitée par la ségrégation superficielle du soufre à leur extrémité. La remontée de la ductilité aux hautes températures résulte de la migration des joints de grains qui ne peut intervenir que par la recristallisation dynamique.</p></abstract><abstract xml:lang="de"><p>Zusammenfassung: Diese Arbeit soll zum Verständnis des Mechanismus beitragen, der den Abfall der Warmduktilität der Legierung Fe36Ni (Invar) verursacht. Im Gegensatz zu Angaben in der Lieteratur zeigen die vorgelegten Ergebnisse, daß Schwefel alleine diesen Verlust der Warmduktilität verursacht. Die Ausscheidungen, insbesondere BN, erhöhen die Schädigung des Materials nur dadurch, daß sie zusätzlich Orte für die Hohlraumbildung anbieten. Die Keimbildung intergranularer Mikrorisse rührt von der Verringerung der Korngrenzkohäsion her, die sowohl mit der Schwefelsegregation an der Grenzfläche als auch mit dem Beitrag der Korgrenzgleitung zur plastichen Verformung einhergerht. Schwefel segregiert stark an den Spitzen dieser inneren Risse und senkt die Ausbreitungsenergie der Risse, welches zur Materialschädigung führt.</p></abstract></profileDesc><revisionDesc><change when="1991-04-15">Modified</change><change when="1991">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/453BA49612F15124F1D052B1487ED373EB0F3A67/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>AMMOLD</jid><aid>91900442</aid><ce:pii>0956-7151(91)90044-2</ce:pii><ce:doi>10.1016/0956-7151(91)90044-2</ce:doi><ce:copyright type="unknown" year="1991"></ce:copyright></item-info><head><ce:title>Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys</ce:title><ce:author-group><ce:author><ce:given-name>L.</ce:given-name><ce:surname>Ben Mostefa</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>1</ce:sup></ce:cross-ref><ce:cross-ref refid="FN1"><ce:sup>†</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>G.</ce:given-name><ce:surname>Saindrenan</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>1</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>M.P.</ce:given-name><ce:surname>Solignac</ce:surname><ce:cross-ref refid="AFF2"><ce:sup>2</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>J.P.</ce:given-name><ce:surname>Colin</ce:surname><ce:cross-ref refid="AFF2"><ce:sup>2</ce:sup></ce:cross-ref></ce:author><ce:affiliation id="AFF1"><ce:label>1</ce:label><ce:textfn>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</ce:textfn></ce:affiliation><ce:affiliation id="AFF2"><ce:label>2</ce:label><ce:textfn>Imphy S.A., Centre de Recherces, 58160 Imphy, France</ce:textfn></ce:affiliation><ce:footnote id="FN1"><ce:label>†</ce:label><ce:note-para>Present address: I.A.P. 35000 Boumerdés Algeria.</ce:note-para></ce:footnote></ce:author-group><ce:date-received day="13" month="2" year="1991"></ce:date-received><ce:date-revised day="15" month="4" year="1991"></ce:date-revised><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>This work is a contribution to understand the hot ductility drop mechanism of the Fe36Ni alloys (Invar). In contrast to the literature data, the present results show that sulfur alone causes a hot ductility loss. The precipitates, especially BN, only increase the damage of the material by multiplying the cavity nucleation sites. The nucleation of intergranular microcracks results from the decrease of the grain boundary cohesion associated with both the interfacial sulfur segregation and the contribution of grain boundary sliding to plastic deformation. Sulfur strongly segregates on the tip sof these internal cracks and decreases the propagation energy of cracks, thus leading to the material damage. The ductility recovery at high temperatures results from grain boundary migration and only dynamic recrystallization permits such a motion.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:abstract xml:lang="fr"><ce:section-title>Résumé</ce:section-title><ce:abstract-sec><ce:simple-para>Ce travail contribue à expliquer le mécanisme de la perte de ductilité à chaud des alliages FeNi36 (Invar). Contrairement aux données de la littérature, les résultats montrent que le soufre seul provoque l'endommagement du matériau. Les précipités, particulièrement BN, n'interviennent qu'en multipliant les sites d'initiation des cavités. La germination des microfissures intergranulaires est due à l'affaiblissement de la cohésion des joints de grains associée à la ségrégation interfaciale du soufre et à l'augmentation de la contribution du glissement intergranulaire à la déformation plastique avec la température. La baisse de ductilité du matériau résulte de la propagation des microfissures facilitée par la ségrégation superficielle du soufre à leur extrémité. La remontée de la ductilité aux hautes températures résulte de la migration des joints de grains qui ne peut intervenir que par la recristallisation dynamique.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:abstract xml:lang="de"><ce:section-title>Zusammenfassung</ce:section-title><ce:abstract-sec><ce:simple-para>Diese Arbeit soll zum Verständnis des Mechanismus beitragen, der den Abfall der Warmduktilität der Legierung Fe36Ni (Invar) verursacht. Im Gegensatz zu Angaben in der Lieteratur zeigen die vorgelegten Ergebnisse, daß Schwefel alleine diesen Verlust der Warmduktilität verursacht. Die Ausscheidungen, insbesondere BN, erhöhen die Schädigung des Materials nur dadurch, daß sie zusätzlich Orte für die Hohlraumbildung anbieten. Die Keimbildung intergranularer Mikrorisse rührt von der Verringerung der Korngrenzkohäsion her, die sowohl mit der Schwefelsegregation an der Grenzfläche als auch mit dem Beitrag der Korgrenzgleitung zur plastichen Verformung einhergerht. Schwefel segregiert stark an den Spitzen dieser inneren Risse und senkt die Ausbreitungsenergie der Risse, welches zur Materialschädigung führt.</ce:simple-para></ce:abstract-sec></ce:abstract></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys</title></titleInfo><name type="personal"><namePart type="given">L.</namePart><namePart type="family">Ben Mostefa</namePart><affiliation>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</affiliation><affiliation>†Present address: I.A.P. 35000 Boumerdés Algeria.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G.</namePart><namePart type="family">Saindrenan</namePart><affiliation>I.S.I.T.E.M. la chantrerie, C.P. 3023, F-44087 Nantes Cédex 03, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.P.</namePart><namePart type="family">Solignac</namePart><affiliation>Imphy S.A., Centre de Recherces, 58160 Imphy, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">J.P.</namePart><namePart type="family">Colin</namePart><affiliation>Imphy S.A., Centre de Recherces, 58160 Imphy, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1991</dateIssued><dateModified encoding="w3cdtf">1991-04-15</dateModified><copyrightDate encoding="w3cdtf">1991</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">This work is a contribution to understand the hot ductility drop mechanism of the Fe36Ni alloys (Invar). In contrast to the literature data, the present results show that sulfur alone causes a hot ductility loss. The precipitates, especially BN, only increase the damage of the material by multiplying the cavity nucleation sites. The nucleation of intergranular microcracks results from the decrease of the grain boundary cohesion associated with both the interfacial sulfur segregation and the contribution of grain boundary sliding to plastic deformation. Sulfur strongly segregates on the tip sof these internal cracks and decreases the propagation energy of cracks, thus leading to the material damage. The ductility recovery at high temperatures results from grain boundary migration and only dynamic recrystallization permits such a motion.</abstract><abstract lang="fr">Résumé: Ce travail contribue à expliquer le mécanisme de la perte de ductilité à chaud des alliages FeNi36 (Invar). Contrairement aux données de la littérature, les résultats montrent que le soufre seul provoque l'endommagement du matériau. Les précipités, particulièrement BN, n'interviennent qu'en multipliant les sites d'initiation des cavités. La germination des microfissures intergranulaires est due à l'affaiblissement de la cohésion des joints de grains associée à la ségrégation interfaciale du soufre et à l'augmentation de la contribution du glissement intergranulaire à la déformation plastique avec la température. La baisse de ductilité du matériau résulte de la propagation des microfissures facilitée par la ségrégation superficielle du soufre à leur extrémité. La remontée de la ductilité aux hautes températures résulte de la migration des joints de grains qui ne peut intervenir que par la recristallisation dynamique.</abstract><abstract lang="de">Zusammenfassung: Diese Arbeit soll zum Verständnis des Mechanismus beitragen, der den Abfall der Warmduktilität der Legierung Fe36Ni (Invar) verursacht. Im Gegensatz zu Angaben in der Lieteratur zeigen die vorgelegten Ergebnisse, daß Schwefel alleine diesen Verlust der Warmduktilität verursacht. Die Ausscheidungen, insbesondere BN, erhöhen die Schädigung des Materials nur dadurch, daß sie zusätzlich Orte für die Hohlraumbildung anbieten. Die Keimbildung intergranularer Mikrorisse rührt von der Verringerung der Korngrenzkohäsion her, die sowohl mit der Schwefelsegregation an der Grenzfläche als auch mit dem Beitrag der Korgrenzgleitung zur plastichen Verformung einhergerht. Schwefel segregiert stark an den Spitzen dieser inneren Risse und senkt die Ausbreitungsenergie der Risse, welches zur Materialschädigung führt.</abstract><relatedItem type="host"><titleInfo><title>Acta Metallurgica et Materialia</title></titleInfo><titleInfo type="abbreviated"><title>AMMOLD</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">199112</dateIssued></originInfo><identifier type="ISSN">0956-7151</identifier><identifier type="PII">S0956-7151(00)X0037-X</identifier><part><date>199112</date><detail type="volume"><number>39</number><caption>vol.</caption></detail><detail type="issue"><number>12</number><caption>no.</caption></detail><extent unit="issue pages"><start>2951</start><end>3249</end></extent><extent unit="pages"><start>3111</start><end>3118</end></extent></part></relatedItem><identifier type="istex">453BA49612F15124F1D052B1487ED373EB0F3A67</identifier><identifier type="DOI">10.1016/0956-7151(91)90044-2</identifier><identifier type="PII">0956-7151(91)90044-2</identifier><recordInfo><recordContentSource>ELSEVIER</recordContentSource></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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|clé= ISTEX:453BA49612F15124F1D052B1487ED373EB0F3A67
|texte= Effect of interfacial sulfur segregation on the hot ductility drop of FeNi36 alloys
}}
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