동력기계공학회지 (Journal of Power System Engineering)
- 제11권3호
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- Pages.41-46
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- 2007
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- 2713-8429(pISSN)
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- 2713-8437(eISSN)
ERW 강관 용접부의 홈부식거동에 미치는 입열량의 영향
The Effect of Heat Input on Grooving Corrosion Behavior in the Welds of Electric Resistance Welding Steel Pipe
초록
The microstructure and electrochemical analysis of welds of electric resistance welding(ERW) pipe were investigated. The direction of metal flow line in HAZ of ERW pipe shifted to the inner(or outer) surface of pipe by plastic deformation during welding. The lowest heat input welds of ERW pipe was showed crack by liquid penetrant testing. Accelerated corrosion test by constant current density of 20mA/
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