| contributor author | Yang, Qingyuan | |
| contributor author | Han, Yanfei | |
| contributor author | Jia, Chuanbao | |
| contributor author | Dong, Shengfa | |
| contributor author | Wu, Chuansong | |
| date accessioned | 2022-02-04T14:42:51Z | |
| date available | 2022-02-04T14:42:51Z | |
| date copyright | 2020/02/06/ | |
| date issued | 2020 | |
| identifier issn | 0892-7219 | |
| identifier other | omae_142_4_041401.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4274221 | |
| description abstract | The dynamic arc behaviors have a significant effect on the process stability and welded joint quality in underwater wet flux-cored arc welding (FCAW). In this study, clear underwater arc images are obtained by using a high-speed camera, which further reveal the complex physical process of underwater wet welding. The mechanism of underwater contact arc ignition is described in detail. Gas ionization and electron emission processes are carried out in bubbles generated by resistance heat. The dynamic arc behaviors are obviously different between bubble growth and separation stages. The high-speed gas flow in the bubble separation stage has a great disturbance to the arc. The arc shapes under water and in air under the same parameters are compared, and the mechanism of arc column shrinkage and arc length shortening is revealed from the aspects of water environment cooling, gas composition in bubbles, disturbance of gas flow, water pressure, and electric field strength. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Visual Investigation on the Arc Burning Behaviors and Features in Underwater Wet FCAW | |
| type | Journal Paper | |
| journal volume | 142 | |
| journal issue | 4 | |
| journal title | Journal of Offshore Mechanics and Arctic Engineering | |
| identifier doi | 10.1115/1.4045914 | |
| page | 41401 | |
| tree | Journal of Offshore Mechanics and Arctic Engineering:;2020:;volume( 142 ):;issue: 004 | |
| contenttype | Fulltext | |
