Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2009.10a
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- Pages.139-141
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- 2009
Effects of Carbides on Hydrogen-induced Delayed Fracture for the Energy Saving Wire (ESW)
선조철강의 탄화물에 따른 수소지연파괴 거동 분석
- Lee, J.B. ;
- Kang, N.H. ;
- Park, J.T. ;
- Ahn, S.T. ;
- Park, Y.D. ;
- Cho, K.M.
- 이진범 (부산대학교 재료공학부) ;
- 강남현 (부산대학교 재료공학부) ;
- 박지태 (삼화강봉(주)) ;
- 안순태 (삼화강봉(주)) ;
- 박영도 (동의대학교 신소재공학과) ;
- 조경목 (부산대학교 재료공학부)
- Published : 2009.10.08
Abstract
This study analyzed the effect of the microstructure and alloying element on hydrogen-induced delayed fracture properties for the Energy Saving Wire (ESW) developed recently. Specimens were produced with a diameter 6.5mm post to the deformation (0, 10, 20 and 30%), followed by injecting the hydrogen. The experimental results by using GAS chromatography showed that the more hydrogen was emitted for high-carbon steel (0.45%C steel and 0.35%C steel) than low-carbon steel(0.2%C-Cr steel and 0.2%C-Cr-Mo steel). And, 0.45%C steel, 0.35%C steel and 0.2%C-Cr-Mo steel exhibited the crack for 30% deformed specimen. The hydrogen emitted was analyzed with the amount, the spheroidization, and the size of the carbides.