Influence of the ferrite rate on the tenacity of a welded joint in austenitic stainless steel: Experimental study and numerical modelling
Identifieur interne : 000508 ( Main/Exploration ); précédent : 000507; suivant : 000509Influence of the ferrite rate on the tenacity of a welded joint in austenitic stainless steel: Experimental study and numerical modelling
Auteurs : B. Bouchouicha [Algérie] ; M. Zemri [Algérie] ; M. Benguediab [Algérie] ; A. Imad [France]Source :
- Computational materials science [ 0927-0256 ] ; 2009.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Corrosion.
English descriptors
- KwdEn :
Abstract
This work is about the experimental and numerical study of the global mechanical behavior of a welded joint using TIG welding process (tungsten inert gas) of austenitic stainless steels 316L. Generally, the mechanical properties characteristics of this type of welded joint depend mainly on two parameters: the quality of weld metal and the quality of gaseous protection. Three qualities of molten metal: (UP-CNM 18 16), (SG-X2/CNM 19 12) and (SG-X12/CNM 19 10) were used. On each of the configurations, mechanical tests of characterization were carried out: tensile test, impact strength, rupture and of folding. In order to simulate the holding of corrosion of the weld, the specimens were emerged in a device corrosion test during one week. The observation made and the results obtained from different mechanical tests had been correlated in order to propose for welding of austenitic stainless steels 316L containing a high concentration of chrome (Cr) and lower concentration of nickel (Ni) in order that a fraction of ferrite can be stabilized during solidification. There is, also, the use of welded metal combination containing 30% of ferrite associated to helium as protection gas. The weld joint obtained is austenito-ferritie, giving a structure with content in adequate ferrite of 15%, this leads to the expected mechanical characteristics which is the closest to the band of scatter of the base metal.
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Bouchouicha</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratory of Materials and Reactive Systems LMSR, Mechanical Department of Engineering, Faculty of Science of the Engineer, University Djillali Liabes, BP 89</s1><s2>22000 Sidi Bel Abbes</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>22000 Sidi Bel Abbes</wicri:noRegion></affiliation></author><author><name sortKey="Zemri, M" sort="Zemri, M" uniqKey="Zemri M" first="M." last="Zemri">M. Zemri</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratory of Materials and Reactive Systems LMSR, Mechanical Department of Engineering, Faculty of Science of the Engineer, University Djillali Liabes, BP 89</s1><s2>22000 Sidi Bel Abbes</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>22000 Sidi Bel Abbes</wicri:noRegion></affiliation></author><author><name sortKey="Benguediab, M" sort="Benguediab, M" uniqKey="Benguediab M" first="M." last="Benguediab">M. Benguediab</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratory of Materials and Reactive Systems LMSR, Mechanical Department of Engineering, Faculty of Science of the Engineer, University Djillali Liabes, BP 89</s1><s2>22000 Sidi Bel Abbes</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>22000 Sidi Bel Abbes</wicri:noRegion></affiliation></author><author><name sortKey="Imad, A" sort="Imad, A" uniqKey="Imad A" first="A." last="Imad">A. Imad</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratory of Mechanics of Lille LML, Polytechnical University of Lille, University of Science and Technology of Lille, Boulevard Paul Langevin</s1><s2>59655 Villeneuve d'Ascq</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Hauts-de-France</region><region type="old region" nuts="2">Nord-Pas-de-Calais</region><settlement type="city">Villeneuve d'Ascq</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Computational materials science</title><title level="j" type="abbreviated">Comput. mater. sci.</title><idno type="ISSN">0927-0256</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Computational materials science</title><title level="j" type="abbreviated">Comput. mater. sci.</title><idno type="ISSN">0927-0256</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Austenitic stainless steel</term><term>Chemical composition</term><term>Corrosion</term><term>Fracture toughness</term><term>GTA welding</term><term>Impact strength</term><term>Mechanical properties</term><term>Modeling</term><term>Numerical simulation</term><term>Rupture strength</term><term>Stainless steel-316L</term><term>Tensile strength</term><term>Tension test</term><term>Weld metal</term><term>Welded joint</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Ténacité</term><term>Assemblage soudé</term><term>Simulation numérique</term><term>Modélisation</term><term>Soudage TIG</term><term>Propriété mécanique</term><term>Composition chimique</term><term>Essai traction</term><term>Résistance traction</term><term>Résistance choc</term><term>Résistance rupture</term><term>Corrosion</term><term>Acier inoxydable austénitique</term><term>Acier inoxydable 316L</term><term>Métal fondu soudage</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Corrosion</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This work is about the experimental and numerical study of the global mechanical behavior of a welded joint using TIG welding process (tungsten inert gas) of austenitic stainless steels 316L. Generally, the mechanical properties characteristics of this type of welded joint depend mainly on two parameters: the quality of weld metal and the quality of gaseous protection. Three qualities of molten metal: (UP-CNM 18 16), (SG-X2/CNM 19 12) and (SG-X12/CNM 19 10) were used. On each of the configurations, mechanical tests of characterization were carried out: tensile test, impact strength, rupture and of folding. In order to simulate the holding of corrosion of the weld, the specimens were emerged in a device corrosion test during one week. The observation made and the results obtained from different mechanical tests had been correlated in order to propose for welding of austenitic stainless steels 316L containing a high concentration of chrome (Cr) and lower concentration of nickel (Ni) in order that a fraction of ferrite can be stabilized during solidification. There is, also, the use of welded metal combination containing 30% of ferrite associated to helium as protection gas. The weld joint obtained is austenito-ferritie, giving a structure with content in adequate ferrite of 15%, this leads to the expected mechanical characteristics which is the closest to the band of scatter of the base metal.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>France</li></country><region><li>Hauts-de-France</li><li>Nord-Pas-de-Calais</li></region><settlement><li>Villeneuve d'Ascq</li></settlement></list><tree><country name="Algérie"><noRegion><name sortKey="Bouchouicha, B" sort="Bouchouicha, B" uniqKey="Bouchouicha B" first="B." last="Bouchouicha">B. Bouchouicha</name></noRegion><name sortKey="Benguediab, M" sort="Benguediab, M" uniqKey="Benguediab M" first="M." last="Benguediab">M. Benguediab</name><name sortKey="Zemri, M" sort="Zemri, M" uniqKey="Zemri M" first="M." last="Zemri">M. Zemri</name></country><country name="France"><region name="Hauts-de-France"><name sortKey="Imad, A" sort="Imad, A" uniqKey="Imad A" first="A." last="Imad">A. Imad</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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