標題: | The study of nitrogen in argon gas on the angular distortion of austenitic stainless steel weldments |
作者: | Tseng, KH Chou, CP 機械工程學系 Department of Mechanical Engineering |
關鍵字: | angular distortion;nitrogen content;retained ferrite |
公開日期: | 10-十一月-2003 |
摘要: | The objective of this study was to investigate the effect of nitrogen added in argon shielding gas on the angular distortion of austenitic stainless steels. An autogenous gas tungsten arc welding was conducted on austenitic stainless steels 304 and 3 10 to produce a bead-on-plate weld. The delta-ferrite content of welds was measured by using Ferritscope. The angular distortion of weldments was determined by using the mean vertical displacement method (MVDM). The present results indicate that the retained ferrite content in Type 304 stainless steel weld metals was rapidly reduced as the nitrogen addition in argon shielding gas was increased. The welding angular distortion was raised with the increase of the amount of nitrogen added in the shielding gas. This experimental result also found that the existence of retained ferrite microstructure within the austenitic matrix has a beneficial effect in reducing welding distortion tendency of austenitic stainless steel weldment. (C) 2003 Elsevier Science B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/S0924-0136(03)00593-4 http://hdl.handle.net/11536/27394 |
ISSN: | 0924-0136 |
DOI: | 10.1016/S0924-0136(03)00593-4 |
期刊: | JOURNAL OF MATERIALS PROCESSING TECHNOLOGY |
Volume: | 142 |
Issue: | 1 |
起始頁: | 139 |
結束頁: | 144 |
顯示於類別: | 期刊論文 |