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NTIS 바로가기大韓溶接·接合學會誌 = Journal of the Korean Welding and Joining Society, v.31 no.6, 2013년, pp.17 - 26
유호천 (한국과학기술정보연구원 ReSEAT 프로그램)
Recent developing tendency of overlay welding on welding materials are studied by searching of NDSL, Science Direct, KIPRIS and so on. Fe, Co, Ni and WC are selected as welding materials. Development and improvement of various new overlay welding technology, especially improvement of quality and for...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
Stellite 6을 Inconel 625 합금 또는 Inconel 718 합금으로 대체하려는 노력이 시도되어온 이유는? | Stellite 6는 고온에서의 마모특성 및 내부식성이 우수하나 가격이 비싸 제작 및 주기적인 보수에 따른 비용이 상당히 크다. 따라서 현재에는 전세계적으로 Stellite 6와 등등한 내마모성 및 내부식성을 보유하고 상대적으로 저렴한 합금, 예를 들면 PTA용접시 Inconel 625 합금 또는 Inconel 718 합금으로 대체하려는 노력이 윤병현 등18)에 의해 시도되었으나, 적용분야에 알맞은 연삭마모 및 미끄럼 마모에 대한 특성보증에 대한 파악이 무엇보다 중요하다. | |
저합금 고장력강에 오스테나이트계 스테인리스강의 오버레이 클래딩 용접시 필요한 기술은? | 저합금 고장력강에 오스테나이트계 스테인리스강의 오버레이 클래딩용접 시에는 최적의 용접공정인자를 선정함으로써 블로우홀, 핀홀 및 포착된(entrapped) 슬래그와 같은 결함이 없는 클래드 접합부를 형성시키는 제조기술이 필요하다1). | |
고크롬계 철계 합금에 일반적으로 첨가되는 합금원소는? | 고크롬계 철계 합금에 일반적으로 첨가되는 합금원소 로는 Mo, Ni, Mn, Cu 등이 있다. Mo은 냉각시 펄라 이트 변태를 억제하며 이차 탄화물 석출을 효과적으로 억제함으로써 경화능을 향상시킨다. |
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