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Creep behaviors of ASTM A36 welded joints |
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| รหัสดีโอไอ | |
| Creator | 1. Pavaret Preedawiphat 2. Numpon Mahayotsanun 3. Keerati Sa-ngoen 4. Mai Noipitak 5. Pongsak Tuengsook 6. Sedthawatt Sucharitpwatskul 7. Kuniaki Dohda |
| Title | Creep behaviors of ASTM A36 welded joints |
| Publisher | Faculty of Engineering, Khon Kaen University |
| Publication Year | 2564 |
| Journal Title | Engineering and Applied Science Research |
| Journal Vol. | 48 |
| Journal No. | 4 |
| Page no. | 446-455 |
| Keyword | ASTM A36, Creep, Hot tensile test, Weld |
| URL Website | https://www.tci-thaijo.org/index.php/easr/index |
| Website title | Engineering and Applied Science Research |
| ISSN | 2539-6161 |
| Abstract | This research work aimed to observe the creep behaviors of the ASTM A36 welded joints. The microstructure and hardness of thebase zone (BZ), heat affected zone (HAZ), and weld fusion zone (WFZ) were measured. Afterward, the residual stresses on the welded plate were observed to determine any lead to fatigue failure. The hot tensile tests were then performed to investigate the welded specimens' creep behaviors at varied strain rates and temperatures. The power-law model was applied to describe the creep behaviors at each testing condition. Finally, the scanning electron microscopic (SEM) images of the tested specimens were observed to identify breakage causes. The creep results showed that the weakest locations were found in the base (A36) zones. The areas prone to ductile fracture was the base zones close to HAZ. |
