Microstructural investigation and mechanical properties evaluation using miniature specimen testing of various constituents of dissimilar weld joint
Microstructural evolution in P91 (modified 9Cr–1Mo) steel and 316LN Stainless Steel (SS) bi-metallic weld joints fabricated by arc welding technique using Inconel-182 electrode has been studied in as-welded and post weld heat treated (PWHT) conditions. The PWHT brought about significant changes in t...
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| Veröffentlicht in: | Journal of nuclear materials 2020-04, Vol.532, p.152048, Article 152048 |
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| container_title | Journal of nuclear materials |
| container_volume | 532 |
| creator | Awale, Deepshree D. Ballal, Atul R. Thawre, Manjusha M. Vijayanand, V.D. Kumar, J. Ganesh Reddy, G.V. Prasad |
| description | Microstructural evolution in P91 (modified 9Cr–1Mo) steel and 316LN Stainless Steel (SS) bi-metallic weld joints fabricated by arc welding technique using Inconel-182 electrode has been studied in as-welded and post weld heat treated (PWHT) conditions. The PWHT brought about significant changes in the microstructure which altered the strength gradient especially in the ferritic steel side. The differences in weld thermal cycling which occurred in various regions of the P91 steel side caused M23C6 precipitates to evolve in varying sizes. The size variation in these precipitates was the paramount cause for the variation in strength in this region which could be probed by miniature specimen testing. Using this testing it could be established that PWHT resulted in offsetting the strength variation in the HAZ of the ferritic steel side. It could also be understood that PWHT generates a weak region in the P91 side making it most susceptible to damage. |
| doi_str_mv | 10.1016/j.jnucmat.2020.152048 |
| format | Article |
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Ganesh ; Reddy, G.V. Prasad</creator><creatorcontrib>Awale, Deepshree D. ; Ballal, Atul R. ; Thawre, Manjusha M. ; Vijayanand, V.D. ; Kumar, J. Ganesh ; Reddy, G.V. Prasad</creatorcontrib><description>Microstructural evolution in P91 (modified 9Cr–1Mo) steel and 316LN Stainless Steel (SS) bi-metallic weld joints fabricated by arc welding technique using Inconel-182 electrode has been studied in as-welded and post weld heat treated (PWHT) conditions. The PWHT brought about significant changes in the microstructure which altered the strength gradient especially in the ferritic steel side. The differences in weld thermal cycling which occurred in various regions of the P91 steel side caused M23C6 precipitates to evolve in varying sizes. The size variation in these precipitates was the paramount cause for the variation in strength in this region which could be probed by miniature specimen testing. Using this testing it could be established that PWHT resulted in offsetting the strength variation in the HAZ of the ferritic steel side. It could also be understood that PWHT generates a weak region in the P91 side making it most susceptible to damage.</description><identifier>ISSN: 0022-3115</identifier><identifier>EISSN: 1873-4820</identifier><identifier>DOI: 10.1016/j.jnucmat.2020.152048</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Arc welding ; Austenitic stainless steels ; Automated ball indentation testing ; Carbide precipitation ; Chemical precipitation ; Chromium molybdenum steels ; Dissimilar material joining ; Dissimilar weld joint ; Ferritic stainless steels ; Heat affected zone ; Heat treatment ; Iron constituents ; Mechanical properties ; Microstructure ; Nickel base alloys ; Orientation imaging microscopy ; Precipitates ; Stainless steel ; Superalloys ; Thermal cycling ; Variation ; Welded joints ; Welding</subject><ispartof>Journal of nuclear materials, 2020-04, Vol.532, p.152048, Article 152048</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Apr 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c252t-257989f9011b432076c96d93916124b9b9eead9eedefa1c55586372d820050143</citedby><cites>FETCH-LOGICAL-c252t-257989f9011b432076c96d93916124b9b9eead9eedefa1c55586372d820050143</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jnucmat.2020.152048$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27926,27927,45997</link.rule.ids></links><search><creatorcontrib>Awale, Deepshree D.</creatorcontrib><creatorcontrib>Ballal, Atul R.</creatorcontrib><creatorcontrib>Thawre, Manjusha M.</creatorcontrib><creatorcontrib>Vijayanand, V.D.</creatorcontrib><creatorcontrib>Kumar, J. Ganesh</creatorcontrib><creatorcontrib>Reddy, G.V. Prasad</creatorcontrib><title>Microstructural investigation and mechanical properties evaluation using miniature specimen testing of various constituents of dissimilar weld joint</title><title>Journal of nuclear materials</title><description>Microstructural evolution in P91 (modified 9Cr–1Mo) steel and 316LN Stainless Steel (SS) bi-metallic weld joints fabricated by arc welding technique using Inconel-182 electrode has been studied in as-welded and post weld heat treated (PWHT) conditions. The PWHT brought about significant changes in the microstructure which altered the strength gradient especially in the ferritic steel side. The differences in weld thermal cycling which occurred in various regions of the P91 steel side caused M23C6 precipitates to evolve in varying sizes. The size variation in these precipitates was the paramount cause for the variation in strength in this region which could be probed by miniature specimen testing. Using this testing it could be established that PWHT resulted in offsetting the strength variation in the HAZ of the ferritic steel side. It could also be understood that PWHT generates a weak region in the P91 side making it most susceptible to damage.</description><subject>Arc welding</subject><subject>Austenitic stainless steels</subject><subject>Automated ball indentation testing</subject><subject>Carbide precipitation</subject><subject>Chemical precipitation</subject><subject>Chromium molybdenum steels</subject><subject>Dissimilar material joining</subject><subject>Dissimilar weld joint</subject><subject>Ferritic stainless steels</subject><subject>Heat affected zone</subject><subject>Heat treatment</subject><subject>Iron constituents</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Nickel base alloys</subject><subject>Orientation imaging microscopy</subject><subject>Precipitates</subject><subject>Stainless steel</subject><subject>Superalloys</subject><subject>Thermal cycling</subject><subject>Variation</subject><subject>Welded joints</subject><subject>Welding</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFUctq3TAQFaGF3ib9hIKga99KsmVbq1JCX5CSTbIWutI4HWNLt3rc0v_IB1fG2XczA2fOnHkcQt5zduSM9x_n4-yLXU0-CiYqJgXrxity4OPQNt0o2CtyYEyIpuVcviFvU5oZY1IxeSDPP9HGkHIsNpdoFor-Ainjk8kYPDXe0RXsL-PR1uI5hjPEjJAoXMxSdlJJ6J_oih5N1QCazmBxBU_zplRLYaIXEzGURG3wFcsFfE4b7jAlXHExkf6BxdE5oM835PVklgTvXvI1efz65eH2e3N3_-3H7ee7xgopciPkoEY1Kcb5qWsFG3qreqdaxXsuupM6KQDjanAwGW6llGPfDsLVjzDJeNdekw-7br3rd6nL6jmU6OtILbp2UF0vurGy5M7aHpUiTPoccTXxr-ZMbwboWb8YoDcD9G5A7fu090E94YIQdbII3oLDCDZrF_A_Cv8A9F-VoQ</recordid><startdate>20200415</startdate><enddate>20200415</enddate><creator>Awale, Deepshree D.</creator><creator>Ballal, Atul R.</creator><creator>Thawre, Manjusha M.</creator><creator>Vijayanand, V.D.</creator><creator>Kumar, J. 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The differences in weld thermal cycling which occurred in various regions of the P91 steel side caused M23C6 precipitates to evolve in varying sizes. The size variation in these precipitates was the paramount cause for the variation in strength in this region which could be probed by miniature specimen testing. Using this testing it could be established that PWHT resulted in offsetting the strength variation in the HAZ of the ferritic steel side. It could also be understood that PWHT generates a weak region in the P91 side making it most susceptible to damage.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnucmat.2020.152048</doi></addata></record> |
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| ispartof | Journal of nuclear materials, 2020-04, Vol.532, p.152048, Article 152048 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Arc welding Austenitic stainless steels Automated ball indentation testing Carbide precipitation Chemical precipitation Chromium molybdenum steels Dissimilar material joining Dissimilar weld joint Ferritic stainless steels Heat affected zone Heat treatment Iron constituents Mechanical properties Microstructure Nickel base alloys Orientation imaging microscopy Precipitates Stainless steel Superalloys Thermal cycling Variation Welded joints Welding |
| title | Microstructural investigation and mechanical properties evaluation using miniature specimen testing of various constituents of dissimilar weld joint |
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