피복아크용접을 이용한 압연강재에 대한 용접성 평가에 대한 연구

• 영문명: A Study on the Evaluation of Weldability for Rolled Carbon Steel Using SMAW
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 안현모(Hyun Mo Ahn) 이종식(Jong Sick Lee)
• 간행물 정보: 『산업기술연구논문지』산업기술연구 제22권 4호, 57~64쪽, 전체 8쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2017.12.30

영문 초록

This paper deals with evaluation of weldability for Rolled carbon steel(SS400 and SM45C) Using SMAW, in which weldability test specimens were categorized into A, B, C type, respectively, for the purpose of weldability evalution, mechanical properties of the specimens between the whiles similar and dissimilar materials were then investigated, and the results obtained through observation were macroscopically compared and analyzed. Under each experiment condition those mechanical properties of the welded specimens were furtherly analyzed for inlcluding the hardness test for each specimen by dividing the welded are the metal part, the heat affected zone, and the base part, Hardness was shown to be the highest in the heat affected zone while there was no significant difference between the welded metal and base metal. Tensile strength and yield strength values were enhanced on all the specimens. Both of macroscopic and microscopic examination revealed notable changes in the heat affected zone seen in the microscopic structure of similar and dissimilar materials. The larger the amount of carbon gets, the greater the amount of pearlite (black part) together with the excessive cementite tend to apper. The texture of the welded part was similar to that of the base material and the microstructure of the crystal grain turned out to be refined.

목차

ABSTRACT

Ⅰ. 서론

Ⅱ. 실험

Ⅲ. 실험결과 및 고찰

Ⅳ. 결론

참고문헌

키워드

용접성 용접금속 압연탄소강 열영향부 기계구조용강 일반구조용강 피복아크용접 Weldability Weld Metal Rolled Carbon Steel Heat Affected Zone SM45C SS400 SMAW