Journal of the Korean Society of Safety (한국안전학회지)
- Volume 9 Issue 1
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- Pages.9-18
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- 1994
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- 1738-3803(pISSN)
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- 2383-9953(eISSN)
An Evaluation of the Fracture Behavior for Flash Butt Welding zone by Acoustic Emission Method
AE방법에 의한 Flash Butt 용접부의 파괴거동 평가
Abstract
In this study, we conducted experimental tests to evaluate fracture behaviors of fresh-butt welded metal by Acoustic Emission technique. We selected similar welding and dissimilar welding process, the one welded for SM45C, SS41 and SUS304 of each material, the other for SM45C and SS41, SM45C and SUS304 and SS41 and SUS304. The fracturing processes of weld metal were estimatied through the fracture toughness test with compact tension specimens and fractography analysis. In ASTM test method E-399, type I curves for materials of this study were obtained by load-cod diagram of fracture toughness test. and 5% offset load(
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