열처리공학회지 (Journal of the Korean Society for Heat Treatment)
- 제11권1호
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- Pages.62-72
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- 1998
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- 1225-1070(pISSN)
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- 2508-4046(eISSN)
예열온도 변화에 따른 레일용접부의 충격인성 및 균열특성
Impact Toughness and Cracking Behavior of a Railroad Weldment with Preheating Conditions
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Lee, Hae-Woo
(Welding Research Team, Shiping & Plant Institute, Samsung Heavy Industries, Co., Ltd.) ;
- Shin, Yong-Teak (Welding Research Team, Shiping & Plant Institute, Samsung Heavy Industries, Co., Ltd.)
- 발행 : 1998.03.31
초록
High carbon steel is used for rails due to the excellent wear resistance, however the welding of high carbon steel is more difficult than that of mild steel owing to the high hardenability and sensitivity to cracking at the weldment. In this study, the impact toughness and cracking behavior of a rail weldment were evaluated as function of preheating temperatures. Impact toughness were more excellent in the specimen welded with preheating temperature above
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