플라스마 아크 용접에 의한 STS317L 용접부의 기계적 특성에 관한 연구

• 영문명: A Study on the Mechanical Properties of Weld Metal in Plasma Arc Welding of STS317L
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 이일준(Il-Jun Lee)
• 간행물 정보: 『산업기술연구논문지』산업기술교육훈련논문지 제17권 3호, 163~169쪽, 전체 7쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2012.09.30

영문 초록

Austenitic stainless steel(STS317L) were selected as base metal. The base metal were jointed by plasma arc welding(PAW) under proper welding conditions. Specimens were cut out from transverse line of welded respectively. Tensile, micro vickers hardness, bending test and microstructure inspection were preformed and the mechanical properties and microstructures investigated. The results of analyses are as follows: Tensile strength was the high in weld metal(565MPa) and elongation was the low(41.0%) then base metal. Hardness was the highest in bond(HV252) and decreased to the base metal gradually and the average hardness in heat affected zone was HV207. In bending test deformation was the largest in heat affected zone and smaller in weld metal zone. The microstructure of weld metal zone showed dual phase of austenite-ferrite contains σ phase and δ-Ferrite, and grain size was largest in heat affected zone then in base metal.

목차

Ⅰ. 서 론

Ⅱ. 실험

Ⅲ. 실험결과 및 고찰

Ⅳ. 결 론

키워드

Weld Metal(용착금속) Bond Zone(접합부) Heat Affected Zone(열영향부) Base Metal(모재) Plasma Arc Welding(플라스마 아크 용접)