Effect of Interstitial Elements on the Toughness of Ferritic Stainless Steel Weld |
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| Journal | Materials Science Forum (Volumes 580 - 582) |
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| Volume | Advanced Welding and Micro Joining / Packaging for the 21st Century |
| Edited by | Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na |
| Pages | 45-48 |
| DOI | 10.4028/www.scientific.net/MSF.580-582.45 |
| Citation | Won Bae Lee et al., 2008, Materials Science Forum, 580-582, 45 |
| Online since | June, 2008 |
| Authors | Won Bae Lee, Jeong Kil Kim, Joon Sik Park, In Su Woo, Jong Bong Lee |
| Keywords | Ferritic Stainless Steel (FSS), GTA Welding, Interstitial Element, LBW, Toughness |
| Abstract | In this study, the toughness of 11Cr ferritic stainless steel weld was evaluated by DBTT (Ductile-Brittle-Transition-Temperature) with the interstitial elements level. DBTT of the weld increased with increasing interstitial level due to the formation of martensite phase and solidsolution strengthening. Interstitial elements level should be limited by the adoption of back shielding gas during welding process because increased C+N level detrimentally affects the toughness of ferritic stainless weld. Adoption of Ar as back shielding gas lowered N content in the weld. |
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