Time dependant weld shape in Ar-O-2 shielded stationary GTA welding
文献类型：期刊论文
| 作者 | S. P. Lu ; D. Z. Li ; H. Fujii ; K. Nogi |
| 刊名 | Journal of Materials Science & Technology
 |
| 出版日期 | 2007 |
| 卷号 | 23期号:5页码:650-654 |
| 关键词 | Marangoni convection oxygen weld shape marangoni convection oxide fluxes penetration |
| ISSN号 | 1005-0302 |
| 中文摘要 | The stationary gas tungsten arc welding (GTA) is carried out on SUS304 stainless steel under Ar-0.1%O-2 and Ar-0.3%O-2 mixed shielding to observe the evolution of the molten pool and investigate the role of Marangoni convection on the weld shape. After welding, the oxygen content in the weld metal was measured by using an oxygen/nitrogen analyzer. Small addition of oxygen to the argon based shielding gas can effectively adjust the weld pool oxygen content. Oxygen plays an important role as an surface active element in determining the pattern of Marangoni convection in the stainless steel weld pool. When the weld metal oxygen content is over the critical value, 0.01 wt pct, corresponding to the Ar-0.3%O-2 mixed shielding gas, the Marangoni convection changes from outward to inward direction and the weld shape dramatically changes from wide shallow shape to narrow deep shape. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33739]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | S. P. Lu,D. Z. Li,H. Fujii,et al. Time dependant weld shape in Ar-O-2 shielded stationary GTA welding[J]. Journal of Materials Science & Technology,2007,23(5):650-654. |
| APA | S. P. Lu,D. Z. Li,H. Fujii,&K. Nogi.(2007).Time dependant weld shape in Ar-O-2 shielded stationary GTA welding.Journal of Materials Science & Technology,23(5),650-654. |
| MLA | S. P. Lu,et al."Time dependant weld shape in Ar-O-2 shielded stationary GTA welding".Journal of Materials Science & Technology 23.5(2007):650-654. |
入库方式： OAI收割
来源：金属研究所
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