Mechanical and Microstructural Evaluation of DMAG Welding of Structural Steel
Double channel torch, which allows concentric flow of two different shielding gases, was designed and manufactured in order to pursue double channel torch gas metal arc welding of unalloyed structural steel S235JR (EN 10025-2) with fourteen passes. Tensile and Charpy V-notch tests were realized and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2015-01-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1155/2014/371212 |
| _version_ | 1818931654969786368 |
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| author | Tolga Mert Nurullah Gultekin Ahmet Karaaslan |
| author_facet | Tolga Mert Nurullah Gultekin Ahmet Karaaslan |
| author_sort | Tolga Mert |
| collection | DOAJ |
| description | Double channel torch, which allows concentric flow of two different shielding gases, was designed and manufactured in order to pursue double channel torch gas metal arc welding of unalloyed structural steel S235JR (EN 10025-2) with fourteen passes. Tensile and Charpy V-notch tests were realized and the results were compared with those of conventional gas metal arc welding. In order to evaluate mechanical testing results, microstructural analyses were conducted. It was found that the increase with double channel gas metal arc welding process in yield and tensile strengths as well as in toughness tests, especially in subzero temperatures, compared with conventional gas metal arc welding was due to longer columnar grains and finer tempered zone grain structure between passes and due to solidification and less dendritic structure formation in all-weld metal in double channel gas metal arc welding. |
| first_indexed | 2024-12-20T04:20:02Z |
| format | Article |
| id | doaj.art-03e41f7c8d034f098b56b0811d1549b9 |
| institution | Directory Open Access Journal |
| issn | 1687-8132 |
| language | English |
| last_indexed | 2024-12-20T04:20:02Z |
| publishDate | 2015-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-03e41f7c8d034f098b56b0811d1549b92022-12-21T19:53:39ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322015-01-01710.1155/2014/37121210.1155_2014/371212Mechanical and Microstructural Evaluation of DMAG Welding of Structural SteelTolga Mert0Nurullah Gultekin1Ahmet Karaaslan2 Department of Mechanical Engineering, Yildiz Technical University, Besiktas, 34349 Istanbul, Turkey Department of Mechanical Engineering, Yildiz Technical University, Besiktas, 34349 Istanbul, Turkey Department of Metallurgical and Materials Engineering, Yildiz Technical University, Esenler, 34210 Istanbul, TurkeyDouble channel torch, which allows concentric flow of two different shielding gases, was designed and manufactured in order to pursue double channel torch gas metal arc welding of unalloyed structural steel S235JR (EN 10025-2) with fourteen passes. Tensile and Charpy V-notch tests were realized and the results were compared with those of conventional gas metal arc welding. In order to evaluate mechanical testing results, microstructural analyses were conducted. It was found that the increase with double channel gas metal arc welding process in yield and tensile strengths as well as in toughness tests, especially in subzero temperatures, compared with conventional gas metal arc welding was due to longer columnar grains and finer tempered zone grain structure between passes and due to solidification and less dendritic structure formation in all-weld metal in double channel gas metal arc welding.https://doi.org/10.1155/2014/371212 |
| spellingShingle | Tolga Mert Nurullah Gultekin Ahmet Karaaslan Mechanical and Microstructural Evaluation of DMAG Welding of Structural Steel Advances in Mechanical Engineering |
| title | Mechanical and Microstructural Evaluation of DMAG Welding of Structural Steel |
| title_full | Mechanical and Microstructural Evaluation of DMAG Welding of Structural Steel |
| title_fullStr | Mechanical and Microstructural Evaluation of DMAG Welding of Structural Steel |
| title_full_unstemmed | Mechanical and Microstructural Evaluation of DMAG Welding of Structural Steel |
| title_short | Mechanical and Microstructural Evaluation of DMAG Welding of Structural Steel |
| title_sort | mechanical and microstructural evaluation of dmag welding of structural steel |
| url | https://doi.org/10.1155/2014/371212 |
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