Analysis of Dissimilar Welding Joint between Inconel 718 and AISI 316L by GTAW Multipass Process
AISI 316L steel and Inconel 718 are metals of wide application in industries. The study of dissimilar welding between these two materials is technologically important to improve their joint performance. We focused this study on the evaluation of the dissimilar weldability of these materials. Three s...
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| Veröffentlicht in: | Soldagem & Inspeção 2022, Vol.27, p.1 |
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| description | AISI 316L steel and Inconel 718 are metals of wide application in industries. The study of dissimilar welding between these two materials is technologically important to improve their joint performance. We focused this study on the evaluation of the dissimilar weldability of these materials. Three samples of AISI 316L and Inconel 718 welded using a multipass GTAW (Gas Tungsten Arc Welding) process with different parameters were analyzed. The microstructural characterization, measurements of the volumetric fraction of the δ ferrite and Laves phase, the spacing between austenite dendrites, in addition to measurement and analysis of dimensions of the welding zones and the microhardness were performed. The measurement of the weld metal dimensions and the dendrite spacing showed that higher heat inputs increased the dilution zones and the spacing between austenite dendrites. The volumetric fraction of the δ ferrite decreased with the increase of heat input, while the Laves phase fraction increased. The microhardness presented significant variation in the weld pool due to changes in the phases and composition, as evidenced by EDS analysis in the dissimilar joints.
Resumo: O aço AISI 316L e Inconel 718 são metais de ampla aplicação na indústria. O estudo da soldagem dissimilar entre esses dois materiais é tecnologicamente importante para melhorar o desempenho da junta. Concentramos este estudo na avaliação da soldabilidade dissimilar desses materiais. Três amostras de AISI 316L e Inconel 718 soldadas usando processo multipass GTAW (Gas Tungsten Arc Welding) com diferentes parâmetros foram analisadas. Foram realizadas caracterização microestrutural, medidas da fração volumétrica da ferrita δ e fase Laves, espaçamento entre as dendritas de austenita, além da medição e análise das dimensões do metal de solda e da microdureza. A medição das dimensões do metal de solda e do espaçamento entre as dendritas mostrou que maiores aportes térmicos aumentaram as zonas fundidas e o espaçamento entre as dendritas de austenita. A fração volumétrica de ferrita δ diminuiu com o aumento do aporte térmico, enquanto que a fração da fase Laves aumentou. A microdureza apresentou variação significativa na poça de fusão devido a mudanças nas fases e na composição, conforme evidenciado pela análise de EDS nas juntas dissimilares. |
| doi_str_mv | 10.1590/0104-9224/si27.09 |
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Resumo: O aço AISI 316L e Inconel 718 são metais de ampla aplicação na indústria. O estudo da soldagem dissimilar entre esses dois materiais é tecnologicamente importante para melhorar o desempenho da junta. Concentramos este estudo na avaliação da soldabilidade dissimilar desses materiais. Três amostras de AISI 316L e Inconel 718 soldadas usando processo multipass GTAW (Gas Tungsten Arc Welding) com diferentes parâmetros foram analisadas. Foram realizadas caracterização microestrutural, medidas da fração volumétrica da ferrita δ e fase Laves, espaçamento entre as dendritas de austenita, além da medição e análise das dimensões do metal de solda e da microdureza. A medição das dimensões do metal de solda e do espaçamento entre as dendritas mostrou que maiores aportes térmicos aumentaram as zonas fundidas e o espaçamento entre as dendritas de austenita. A fração volumétrica de ferrita δ diminuiu com o aumento do aporte térmico, enquanto que a fração da fase Laves aumentou. A microdureza apresentou variação significativa na poça de fusão devido a mudanças nas fases e na composição, conforme evidenciado pela análise de EDS nas juntas dissimilares.</description><identifier>ISSN: 0104-9224</identifier><identifier>ISSN: 1980-6973</identifier><identifier>EISSN: 1980-6973</identifier><identifier>DOI: 10.1590/0104-9224/si27.09</identifier><language>eng ; por</language><publisher>Sao Paulo: Associacao Brasileira de Soldagem</publisher><subject>Austenite ; Austenitic stainless steels ; Delta ferrite ; Dendritic structure ; Dilution ; Dissimilar materials ; Dissimilar metals ; Gas tungsten arc welding ; Heat treating ; Laves phase ; METALLURGY & METALLURGICAL ENGINEERING ; Microhardness ; Nickel base alloys ; Process parameters ; Superalloys ; Weld metal ; Weld metal pool ; Welded joints ; Welding parameters</subject><ispartof>Soldagem & Inspeção, 2022, Vol.27, p.1</ispartof><rights>Copyright Associacao Brasileira de Soldagem 2022</rights><rights>This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c1529-64ff26308d1e235ba58237c5513949c6722a47f0d45a9ec59397cdd9044ad8d13</cites><orcidid>0000-0003-1891-7610 ; 0000-0002-9314-5457 ; 0000-0001-8414-2054 ; 0000-0001-8054-9236</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Silva, Rafaela dos Santos</creatorcontrib><creatorcontrib>Demarque, Rudineli</creatorcontrib><creatorcontrib>Silva, Leonardo Martins da</creatorcontrib><creatorcontrib>Castro, José Adilson de</creatorcontrib><title>Analysis of Dissimilar Welding Joint between Inconel 718 and AISI 316L by GTAW Multipass Process</title><title>Soldagem & Inspeção</title><addtitle>Soldag. insp</addtitle><description>AISI 316L steel and Inconel 718 are metals of wide application in industries. The study of dissimilar welding between these two materials is technologically important to improve their joint performance. We focused this study on the evaluation of the dissimilar weldability of these materials. Three samples of AISI 316L and Inconel 718 welded using a multipass GTAW (Gas Tungsten Arc Welding) process with different parameters were analyzed. The microstructural characterization, measurements of the volumetric fraction of the δ ferrite and Laves phase, the spacing between austenite dendrites, in addition to measurement and analysis of dimensions of the welding zones and the microhardness were performed. The measurement of the weld metal dimensions and the dendrite spacing showed that higher heat inputs increased the dilution zones and the spacing between austenite dendrites. The volumetric fraction of the δ ferrite decreased with the increase of heat input, while the Laves phase fraction increased. The microhardness presented significant variation in the weld pool due to changes in the phases and composition, as evidenced by EDS analysis in the dissimilar joints.
Resumo: O aço AISI 316L e Inconel 718 são metais de ampla aplicação na indústria. O estudo da soldagem dissimilar entre esses dois materiais é tecnologicamente importante para melhorar o desempenho da junta. Concentramos este estudo na avaliação da soldabilidade dissimilar desses materiais. Três amostras de AISI 316L e Inconel 718 soldadas usando processo multipass GTAW (Gas Tungsten Arc Welding) com diferentes parâmetros foram analisadas. Foram realizadas caracterização microestrutural, medidas da fração volumétrica da ferrita δ e fase Laves, espaçamento entre as dendritas de austenita, além da medição e análise das dimensões do metal de solda e da microdureza. A medição das dimensões do metal de solda e do espaçamento entre as dendritas mostrou que maiores aportes térmicos aumentaram as zonas fundidas e o espaçamento entre as dendritas de austenita. A fração volumétrica de ferrita δ diminuiu com o aumento do aporte térmico, enquanto que a fração da fase Laves aumentou. A microdureza apresentou variação significativa na poça de fusão devido a mudanças nas fases e na composição, conforme evidenciado pela análise de EDS nas juntas dissimilares.</description><subject>Austenite</subject><subject>Austenitic stainless steels</subject><subject>Delta ferrite</subject><subject>Dendritic structure</subject><subject>Dilution</subject><subject>Dissimilar materials</subject><subject>Dissimilar metals</subject><subject>Gas tungsten arc welding</subject><subject>Heat treating</subject><subject>Laves phase</subject><subject>METALLURGY & METALLURGICAL ENGINEERING</subject><subject>Microhardness</subject><subject>Nickel base alloys</subject><subject>Process parameters</subject><subject>Superalloys</subject><subject>Weld metal</subject><subject>Weld metal pool</subject><subject>Welded joints</subject><subject>Welding parameters</subject><issn>0104-9224</issn><issn>1980-6973</issn><issn>1980-6973</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpFkF1LwzAUhoMoOOZ-gHcBr7udfDXN5Zg6KxOFTXYZ0zSVSNfMpkP2722ZzKvD4f04PAehWwJTIhTMgABPFKV8Fj2VU1AXaERUBkmqJLtEo7N-jSYx-gI4l0KlBEboY96Y-hh9xKHC975Xd742Ld66uvTNJ34Ovulw4bof5xqcNzY0rsaSZNg0JZ7n6xwzkq5wccTLzXyLXw515_cmRvzWButivEFXlamjm_zNMXp_fNgsnpLV6zJfzFeJJYKqJOVVRVMGWUkcZaIwIqNMWiEIU1zZVFJquKyg5MIoZ4ViStqyVD2KKfsQG6PpqTda7-qgv8Kh7dGiXg_0eqCnQClAvwKFrA_cnQL7NnwfXOz-I1QySVLa3-xd5OSybYixdZXet35n2qMmoIfn63O9Hp6vQbFf4t5xhg</recordid><startdate>2022</startdate><enddate>2022</enddate><creator>Silva, Rafaela dos Santos</creator><creator>Demarque, Rudineli</creator><creator>Silva, Leonardo Martins da</creator><creator>Castro, José Adilson de</creator><general>Associacao Brasileira de Soldagem</general><general>Associação Brasileira de Soldagem</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>GPN</scope><orcidid>https://orcid.org/0000-0003-1891-7610</orcidid><orcidid>https://orcid.org/0000-0002-9314-5457</orcidid><orcidid>https://orcid.org/0000-0001-8414-2054</orcidid><orcidid>https://orcid.org/0000-0001-8054-9236</orcidid></search><sort><creationdate>2022</creationdate><title>Analysis of Dissimilar Welding Joint between Inconel 718 and AISI 316L by GTAW Multipass Process</title><author>Silva, Rafaela dos Santos ; Demarque, Rudineli ; Silva, Leonardo Martins da ; Castro, José Adilson de</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1529-64ff26308d1e235ba58237c5513949c6722a47f0d45a9ec59397cdd9044ad8d13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; por</language><creationdate>2022</creationdate><topic>Austenite</topic><topic>Austenitic stainless steels</topic><topic>Delta ferrite</topic><topic>Dendritic structure</topic><topic>Dilution</topic><topic>Dissimilar materials</topic><topic>Dissimilar metals</topic><topic>Gas tungsten arc welding</topic><topic>Heat treating</topic><topic>Laves phase</topic><topic>METALLURGY & METALLURGICAL ENGINEERING</topic><topic>Microhardness</topic><topic>Nickel base alloys</topic><topic>Process parameters</topic><topic>Superalloys</topic><topic>Weld metal</topic><topic>Weld metal pool</topic><topic>Welded joints</topic><topic>Welding parameters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Silva, Rafaela dos Santos</creatorcontrib><creatorcontrib>Demarque, Rudineli</creatorcontrib><creatorcontrib>Silva, Leonardo Martins da</creatorcontrib><creatorcontrib>Castro, José Adilson de</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>SciELO</collection><jtitle>Soldagem & Inspeção</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Silva, Rafaela dos Santos</au><au>Demarque, Rudineli</au><au>Silva, Leonardo Martins da</au><au>Castro, José Adilson de</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Analysis of Dissimilar Welding Joint between Inconel 718 and AISI 316L by GTAW Multipass Process</atitle><jtitle>Soldagem & Inspeção</jtitle><addtitle>Soldag. insp</addtitle><date>2022</date><risdate>2022</risdate><volume>27</volume><spage>1</spage><pages>1-</pages><issn>0104-9224</issn><issn>1980-6973</issn><eissn>1980-6973</eissn><abstract>AISI 316L steel and Inconel 718 are metals of wide application in industries. The study of dissimilar welding between these two materials is technologically important to improve their joint performance. We focused this study on the evaluation of the dissimilar weldability of these materials. Three samples of AISI 316L and Inconel 718 welded using a multipass GTAW (Gas Tungsten Arc Welding) process with different parameters were analyzed. The microstructural characterization, measurements of the volumetric fraction of the δ ferrite and Laves phase, the spacing between austenite dendrites, in addition to measurement and analysis of dimensions of the welding zones and the microhardness were performed. The measurement of the weld metal dimensions and the dendrite spacing showed that higher heat inputs increased the dilution zones and the spacing between austenite dendrites. The volumetric fraction of the δ ferrite decreased with the increase of heat input, while the Laves phase fraction increased. The microhardness presented significant variation in the weld pool due to changes in the phases and composition, as evidenced by EDS analysis in the dissimilar joints.
Resumo: O aço AISI 316L e Inconel 718 são metais de ampla aplicação na indústria. O estudo da soldagem dissimilar entre esses dois materiais é tecnologicamente importante para melhorar o desempenho da junta. Concentramos este estudo na avaliação da soldabilidade dissimilar desses materiais. Três amostras de AISI 316L e Inconel 718 soldadas usando processo multipass GTAW (Gas Tungsten Arc Welding) com diferentes parâmetros foram analisadas. Foram realizadas caracterização microestrutural, medidas da fração volumétrica da ferrita δ e fase Laves, espaçamento entre as dendritas de austenita, além da medição e análise das dimensões do metal de solda e da microdureza. A medição das dimensões do metal de solda e do espaçamento entre as dendritas mostrou que maiores aportes térmicos aumentaram as zonas fundidas e o espaçamento entre as dendritas de austenita. A fração volumétrica de ferrita δ diminuiu com o aumento do aporte térmico, enquanto que a fração da fase Laves aumentou. A microdureza apresentou variação significativa na poça de fusão devido a mudanças nas fases e na composição, conforme evidenciado pela análise de EDS nas juntas dissimilares.</abstract><cop>Sao Paulo</cop><pub>Associacao Brasileira de Soldagem</pub><doi>10.1590/0104-9224/si27.09</doi><orcidid>https://orcid.org/0000-0003-1891-7610</orcidid><orcidid>https://orcid.org/0000-0002-9314-5457</orcidid><orcidid>https://orcid.org/0000-0001-8414-2054</orcidid><orcidid>https://orcid.org/0000-0001-8054-9236</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Austenite Austenitic stainless steels Delta ferrite Dendritic structure Dilution Dissimilar materials Dissimilar metals Gas tungsten arc welding Heat treating Laves phase METALLURGY & METALLURGICAL ENGINEERING Microhardness Nickel base alloys Process parameters Superalloys Weld metal Weld metal pool Welded joints Welding parameters |
| title | Analysis of Dissimilar Welding Joint between Inconel 718 and AISI 316L by GTAW Multipass Process |
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