구조용 강재의 부식피로 강도에 미치는 산성안개 및 염화칼슘의 영향

• 영문명: Effects of Acid Fog and CaCl₂ on the Corrosion Fatigue Strength of Structural Steel
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 김민건(Kim Min Gun) 김명섭(Kim Myoung Sub)
• 간행물 정보: 『산업기술연구』vol.21, 17~26쪽, 전체 10쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2001.09.30

영문 초록

The fatigue strength of SM55C has significantly decreased by 83% compared with atmosphere where distilled exists due to strong erosive action of acid fog. The reason is inferred in a way that strong acid erosive material such as acid fog act and give rise to multi-site crack on the surface. Several fatigue clacks occurred under the acid fog repeat the process of division and unification on the surface and form a long non-propagating crack throughout the circumference of experimented steel. However, in the depth, many parts do not show much trace of unification, and the depth is not as big as the one of normal crack shape. 10% of Cacl2 causes strong erosive reaction to material. Then eventually make the life of fatigue shooter. On the other hand, 20% of Cacl2 beings about oxidized material organic crack closing due to weak erosive reaction.

목차

Abstract

1. 서론

2. 이론적 배경

3. 시험편 및 실험 방법

4. 결과 및 고찰

5. 결론

참고문헌

키워드

산성안개 염화칼슘 멀티사이트크랙 정류크랙 acid fog CaCl₂ multi-site crack non-propagating crack