A Metallurgical Study of Micro Plasma Arc Welded Joint of Austenitic Stainless-steel Blank
Micro plasma arc welding (MPAW) is frequently used for joining thin sheets of ferrous and nonferrous materials. In this study, austenitic stainless steel 316L of 0.5 mm thin sheets are joined by using MPAW. The weld metallurgy is characterized by field electron scanning microscopy (FESEM), Transmiss...
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Polish Academy of Sciences
2024-09-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | https://journals.pan.pl/Content/132668/AMM-2024-3-28-Haldar.pdf |
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| author | V. Haldar S. Pal |
| author_facet | V. Haldar S. Pal |
| author_sort | V. Haldar |
| collection | DOAJ |
| description | Micro plasma arc welding (MPAW) is frequently used for joining thin sheets of ferrous and nonferrous materials. In this study, austenitic stainless steel 316L of 0.5 mm thin sheets are joined by using MPAW. The weld metallurgy is characterized by field electron scanning microscopy (FESEM), Transmission electron microscopy (TEM), and X-ray diffraction (XRD) techniques to evaluate different phases formation and their orientation in detail. Mechanical tests like tensile test, micro hardness test is also carried out to measure the joint quality. It is found that the weld joint is constituent of two major phases, δ-ferrite and austenite (γ), and few secondary phases like chromium carbides. The ferrite percentage in the fusion zone is higher than the as received base material. The fusion zone hardness is increased due to the presence of high amount of ferrite and carbides. The tensile fracture surface contains lots of dimples and voids, which indicates good ductility of the joint. A defect free and good joint efficiency is achieved by using MPAW. |
| format | Article |
| id | doaj-art-01ac2d67c7ed4bff8f967c0babe31ebf |
| institution | DOAJ |
| issn | 2300-1909 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj-art-01ac2d67c7ed4bff8f967c0babe31ebf2025-08-20T02:55:39ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092024-09-01vol. 69No 310711078https://doi.org/10.24425/amm.2024.150927A Metallurgical Study of Micro Plasma Arc Welded Joint of Austenitic Stainless-steel BlankV. Haldar0S. Pal1https://orcid.org/0000-0003-2640-9317Indian Institute of Technology, Guwahati, IndiaIndian Institute of Technology, Guwahati, IndiaMicro plasma arc welding (MPAW) is frequently used for joining thin sheets of ferrous and nonferrous materials. In this study, austenitic stainless steel 316L of 0.5 mm thin sheets are joined by using MPAW. The weld metallurgy is characterized by field electron scanning microscopy (FESEM), Transmission electron microscopy (TEM), and X-ray diffraction (XRD) techniques to evaluate different phases formation and their orientation in detail. Mechanical tests like tensile test, micro hardness test is also carried out to measure the joint quality. It is found that the weld joint is constituent of two major phases, δ-ferrite and austenite (γ), and few secondary phases like chromium carbides. The ferrite percentage in the fusion zone is higher than the as received base material. The fusion zone hardness is increased due to the presence of high amount of ferrite and carbides. The tensile fracture surface contains lots of dimples and voids, which indicates good ductility of the joint. A defect free and good joint efficiency is achieved by using MPAW.https://journals.pan.pl/Content/132668/AMM-2024-3-28-Haldar.pdfmicro plasma arc weldingtem analysisaustenitic316l stainless steeltensile test |
| spellingShingle | V. Haldar S. Pal A Metallurgical Study of Micro Plasma Arc Welded Joint of Austenitic Stainless-steel Blank Archives of Metallurgy and Materials micro plasma arc welding tem analysis austenitic 316l stainless steel tensile test |
| title | A Metallurgical Study of Micro Plasma Arc Welded Joint of Austenitic Stainless-steel Blank |
| title_full | A Metallurgical Study of Micro Plasma Arc Welded Joint of Austenitic Stainless-steel Blank |
| title_fullStr | A Metallurgical Study of Micro Plasma Arc Welded Joint of Austenitic Stainless-steel Blank |
| title_full_unstemmed | A Metallurgical Study of Micro Plasma Arc Welded Joint of Austenitic Stainless-steel Blank |
| title_short | A Metallurgical Study of Micro Plasma Arc Welded Joint of Austenitic Stainless-steel Blank |
| title_sort | metallurgical study of micro plasma arc welded joint of austenitic stainless steel blank |
| topic | micro plasma arc welding tem analysis austenitic 316l stainless steel tensile test |
| url | https://journals.pan.pl/Content/132668/AMM-2024-3-28-Haldar.pdf |
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