590MPa급 고강도강 플래시버트 용접이음부의 기계적특성 = Mechanical Properties of the Flash Butt Welded Joint of 590MPa High Strength Steel

다국어 초록 (Multilingual Abstract)

Flash butt weldability of 590MPa dual phase steel is carried out under micro metallographical examination and macro mechanical property tests. The objective of present study is to investigate the cause that brings on bond line fracture, and is to improve mechanical properties of the flash butt welded joint. The joint of flash butt welding has a superior tensile property, but has bad formability due to oxide formed at bond interface. The HAZ softening in the weld joint does not show. It was found that mechanical properties were increased with optimizing welding parameters and making application of oil dripping and post-weld heat treatment.

참고문헌 (Reference)

1 "Weldability of Dual Phase Steel Produced by Steel Authority of India"

2 "Univ. of Rorke" -53,

3 "Study on the Flash Welding Phenomena of Stels - Observation by High Speed Motion Pictures- Journal of JWS" 40 35-1 53, 1971

4 "Study on the Flash Welding Phenomena of Steels Journal of JWS" 40 137-2 151, 1971

5 "Proc. Oof Int. Conf. Welding Tech. in Developing Contries Present Status and Future Neds Univ. of Roorke" -19, 1988

6 "D i s p e r s i o n M e c h a n i s m o f O x i d e I n c l u s i o n a t t h e I n t e r f a c e o f Specimens in Upset But Welding Journal of JWS" 40 140 40 140-11 1148 11 1148, 19711971