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다이캐스팅 공정에 사용된 개량형 STD61 열간 금형 표면의 미세조직에 관한 연구
저자
유하영, 이승준, 강민우, 이석진, 양원존, 정재석, 김병훈, 이영국
학술지명
대한금속·재료학회지
출판/발행연도
2016
주제
요약
본 연구는 다이캐스팅 공정에 사용된 개량형 STD61 열간 금형의 표면 미세조직과 균열 형성을 조사하였다. 금형 표면은 산화층, 탈탄층, 네트워크 탄화물층 및 템퍼 마르텐사이트 기지로 구성되었으며, 열피로 균열의 약 60%는 네트워크 탄화물층에 의해 균열 전파가 저지되어 200 μm 미만의 깊이를 가졌다.
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