대한조선학회지 (Bulletin of the Society of Naval Architects of Korea)
- 제10권2호
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- Pages.9-18
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- 1973
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- 1225-1178(pISSN)
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- 2765-2858(eISSN)
침탄(浸炭)이 저탄소강(低炭素鋼)의 피로(疲勞)에 미치는 영향(影響)
The Effect of Carburization of the Fatigue of Low Carbon Steel
초록
The effects of carburization on the fatigue strength and cracks were studied. The fatigue phenomena of the carburized specimens were compared with noncarburized specimens those were either heat-treated or un-treated. The fatigue strength of these specimens were measured by rotating bending fatigue machine. The obtained results indicated that the fatigue strength of carburized specimens were increased ranging from 24-59 % than those of un-treated, and 22-38% than those of heat-treated. The Vickers hardness of carburized were also increased as much as 138-195% than those of un-treated, and 42-125% than those of heat-treated. The microscopic observation of the carburized specimens mostly composed of minute pearlitic structure at hard case exhibited to have more localized slip than those of non-carburized specimens.
키워드