| Highly efficient TIG welding of Cr13Ni5Mo martensitic stainless steel | |
| S. P. Lu; M. P. Qin; W. C. Dong | |
| 2013 | |
| Source Publication | Journal of Materials Processing Technology
 |
| ISSN | 0924-0136 |
| Volume | 213Issue:2Pages:229-237 |
| Abstract | A double-shielded TIG welding process using pure He gas as the inner shielding layer and He and CO2 mixed gas as the outer shielding layer was proposed for the welding of Cr13Ni5Mo martensitic stainless steels. This proposed welding process can successfully address the problem of electrode oxidation with mixed-gas TIG welding and the issue of low weld depth and welding efficiency of traditional TIG welding. A change in the direction of the surface tension convection mode was the primary mechanism that affected the fusion zone profile. When the oxygen content in the weld pool was in the range of 80-120 ppm, the surface tension convection direction changed from outward to inward, resulting in both a larger weld depth and a larger weld depth/width ratio. This process not only allows for a high welding efficiency comparing with traditional TIG welding but also produces better weld impact properties than those of MAG welding (metal active gas welding). (C) 2012 Elsevier B.V. All rights reserved. |
| description.department | [lu, s. p. ; qin, m. p. ; dong, w. c.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; lu, sp (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; shplu@imr.ac.cn |
| Keyword | Martensitic Stainless Steel Tig Welding Oxygen Content Surface Tension Convection Fusion Zone Profile Shape Variations Marangoni Convection Shielding Gas |
| URL | 查看原文 |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/71390 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | S. P. Lu,M. P. Qin,W. C. Dong. Highly efficient TIG welding of Cr13Ni5Mo martensitic stainless steel[J]. Journal of Materials Processing Technology,2013,213(2):229-237. |
| APA | S. P. Lu,M. P. Qin,&W. C. Dong.(2013).Highly efficient TIG welding of Cr13Ni5Mo martensitic stainless steel.Journal of Materials Processing Technology,213(2),229-237. |
| MLA | S. P. Lu,et al."Highly efficient TIG welding of Cr13Ni5Mo martensitic stainless steel".Journal of Materials Processing Technology 213.2(2013):229-237. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment