The effects of post weld heat treatment for welded high-Mn austenitic steels using the submerged arc welding method
The high-Mn austenitic steels exhibit fully austenitic structure at room temperatures while showing twinning mechanisms during deformations. In the SAW welding process, the microstructure and mechanical properties of heat affected zone (HAZ) and weld metal (WM) are affected by the welding heat causi...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422006032 |
| _version_ | 1818192004328194048 |
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| author | Minha Park Moonseok Kang Geon-Woo Park Gwangjoo Jang Byoungkoo Kim Hyoung Chan Kim Jong Bae Jeon Hyunmyung Kim Se-Hun Kwon Byung Jun Kim |
| author_facet | Minha Park Moonseok Kang Geon-Woo Park Gwangjoo Jang Byoungkoo Kim Hyoung Chan Kim Jong Bae Jeon Hyunmyung Kim Se-Hun Kwon Byung Jun Kim |
| author_sort | Minha Park |
| collection | DOAJ |
| description | The high-Mn austenitic steels exhibit fully austenitic structure at room temperatures while showing twinning mechanisms during deformations. In the SAW welding process, the microstructure and mechanical properties of heat affected zone (HAZ) and weld metal (WM) are affected by the welding heat causing potential degradation of mechanical properties due to the segregation and depletion of Mn in HAZ and WM regions. In this study, post weld heat treatment (PWHT) was performed at 800 °C, 900 °C and 1000 °C to improve the mechanical properties of welded high-Mn austenitic steels. We examined electron backscattered diffraction (EBSD) and energy dispersive X-ray spectroscopy (EDS) analysis to investigate the relationship between microstructure and mechanical properties after heat treatment. In particular, mechanisms of impact toughness improvement was identified by analyzing the microstructure and deformation behavior such as mechanical twin and grain size through the instrumented Charpy impact test and EBSD analysis. |
| first_indexed | 2024-12-12T00:23:36Z |
| format | Article |
| id | doaj.art-0f9f3576b70b499e9a5750bd7eace329 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-12T00:23:36Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-0f9f3576b70b499e9a5750bd7eace3292022-12-22T00:44:41ZengElsevierJournal of Materials Research and Technology2238-78542022-05-011844974512The effects of post weld heat treatment for welded high-Mn austenitic steels using the submerged arc welding methodMinha Park0Moonseok Kang1Geon-Woo Park2Gwangjoo Jang3Byoungkoo Kim4Hyoung Chan Kim5Jong Bae Jeon6Hyunmyung Kim7Se-Hun Kwon8Byung Jun Kim9Dongnam Regional Division, Korea Institute of Industrial Technology, Busan 46938, Republic of Korea; Department of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of KoreaDongnam Regional Division, Korea Institute of Industrial Technology, Busan 46938, Republic of Korea; Department of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of KoreaDongnam Regional Division, Korea Institute of Industrial Technology, Busan 46938, Republic of KoreaDongnam Regional Division, Korea Institute of Industrial Technology, Busan 46938, Republic of KoreaDongnam Regional Division, Korea Institute of Industrial Technology, Busan 46938, Republic of KoreaDongnam Regional Division, Korea Institute of Industrial Technology, Busan 46938, Republic of KoreaDepartment of Materials Science and Engineering, Dong-A University, Busan 49315, Republic of KoreaMaterials Safety Technology Development Division, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of KoreaDepartment of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea; Corresponding author.Dongnam Regional Division, Korea Institute of Industrial Technology, Busan 46938, Republic of Korea; Corresponding author.The high-Mn austenitic steels exhibit fully austenitic structure at room temperatures while showing twinning mechanisms during deformations. In the SAW welding process, the microstructure and mechanical properties of heat affected zone (HAZ) and weld metal (WM) are affected by the welding heat causing potential degradation of mechanical properties due to the segregation and depletion of Mn in HAZ and WM regions. In this study, post weld heat treatment (PWHT) was performed at 800 °C, 900 °C and 1000 °C to improve the mechanical properties of welded high-Mn austenitic steels. We examined electron backscattered diffraction (EBSD) and energy dispersive X-ray spectroscopy (EDS) analysis to investigate the relationship between microstructure and mechanical properties after heat treatment. In particular, mechanisms of impact toughness improvement was identified by analyzing the microstructure and deformation behavior such as mechanical twin and grain size through the instrumented Charpy impact test and EBSD analysis.http://www.sciencedirect.com/science/article/pii/S2238785422006032High-Mn austenitic steelsSubmerged-arc welding (SAW)Post weld heat treatment (PWHT)RecrystallizationMn-segregation |
| spellingShingle | Minha Park Moonseok Kang Geon-Woo Park Gwangjoo Jang Byoungkoo Kim Hyoung Chan Kim Jong Bae Jeon Hyunmyung Kim Se-Hun Kwon Byung Jun Kim The effects of post weld heat treatment for welded high-Mn austenitic steels using the submerged arc welding method Journal of Materials Research and Technology High-Mn austenitic steels Submerged-arc welding (SAW) Post weld heat treatment (PWHT) Recrystallization Mn-segregation |
| title | The effects of post weld heat treatment for welded high-Mn austenitic steels using the submerged arc welding method |
| title_full | The effects of post weld heat treatment for welded high-Mn austenitic steels using the submerged arc welding method |
| title_fullStr | The effects of post weld heat treatment for welded high-Mn austenitic steels using the submerged arc welding method |
| title_full_unstemmed | The effects of post weld heat treatment for welded high-Mn austenitic steels using the submerged arc welding method |
| title_short | The effects of post weld heat treatment for welded high-Mn austenitic steels using the submerged arc welding method |
| title_sort | effects of post weld heat treatment for welded high mn austenitic steels using the submerged arc welding method |
| topic | High-Mn austenitic steels Submerged-arc welding (SAW) Post weld heat treatment (PWHT) Recrystallization Mn-segregation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422006032 |
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