The effection of alloying elements on welding characteristics of stainless steel

J. Ocean Eng. Technol. 1997;11(1):16-23.

스테인리스강의 용접 특성에 미치는 합금원소의 영향

정호신,배동수,엄동석

부경대학교 공과대학,동의대학교 공과대학,부경대학교 공과대학

Keywords: Stainless Steel, Solidification Crack Sensitivity, Cryogenic Toughness, Corrosion Resistance, Primary Solidification Phase

핵심용어: 스테인리스강, 응고균열 감수성, 극저온 인성, 내식성, 응고 초정상

Abstract

Stainless steel are widely applicable in various engineering fields for its exellent corrosion and impact ressistance. Austenitic weld metal has some ferrite for preventing solidification cracking by ASME specification. Several family of austenic stainless steel contains varying ferrite contents. But ferrite in austenic stainless steels is adversely affect weld metal toughness and since fully austenic grades are known to have good toughness. Austenic stainless steel has various alloying addition for improving corrosion resistance, impact toughness and solidification crack resistance. The effect of various alloying elements are not found to be clear in present. From this view of point, this study tried to establish the criteria of alloy design for austenic stainless steel by controlling primary solidification mode and clarifying the effect of several alloying elements.