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J. Ocean Eng. Technol. > Volume 25(5); 2011 > Article
J. Ocean Eng. Technol. 2011;25(5):33-39.    
DOI: https://doi.org/10.5574/KSOE.2011.25.5.033   

Variation of Impact Values by Heat Treatment Temperature to Prevent Brittle Fracture of Roll Shell Steel
Suh Chang-Min,Suh Min-Soo,Cho Hae-Yong
School of Mechanical Engineering Kyungpook National University,School of Advanced Materials Engineering Kookmin University,School of Mechanical Engineering Chungbuk National University
압연롤강의 취성파괴 방지를 위한 열처리 온도에 따른 충격치 변화에 관한 연구 (I)
서창민,서민수,조해용
경북대학교 공과대학 기계공학부,국민대학교 공과대학 신소재공학부,충북대학교 공과대학 기계공학부
© 2011 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Impact test, Heat treatment, Roll shell steel, Brittle fracture, Tempering
핵심용어: 충격시험, 열처리, 압연롤강, 취성파괴, 템퍼링
Abstract
This study involved a series of experiments, which included impact tests (drop weight & Charpy) and hardness tests under various heat treatment conditions, followed by fractography observations of Normal Roll Shell steel (NRS), Abnormal Roll Shell steel (ARS), and S25C steel, in order to analyze the cause of brittle fracture and damages in Roll Shell steel. The optimal tempering temperature was characterized for ARS and NRS.


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