Effect of interstitial elements on the toughness of ferritic stainless steel weld

被引：0

作者：

Lee, Won-Bae ^{[1
]}

Kim, Jeong-Kil ^{[1
]}

Park, Joon-Sik ^{[1
]}

Woo, In-Su ^{[1
]}

Lee, Jong-Bong ^{[1
]}

机构：

[1] POSCO Tech Res Lab, Pohang 790785, South Korea

来源：

ADVANCED WELDING AND MICRO JOINING / PACKAGING FOR THE 21ST CENTURY | 2008年 / 580-582卷

关键词：

ferritic stainless steel; interstitial element; toughness; GTAW; LBW;

D O I：

10.4028/www.scientific.net/MSF.580-582.45

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the toughness of 11 Cr 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 solid-solution 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 At as back shielding gas lowered N content in the weld.

引用

页码：45 / 48

页数：4

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