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오스테나이트 분포에 따른 수퍼 2 상 스테인리스강의 기계적 특성과 피로균열 진전거동
도재윤(J . Y . Do),이상기(S . K . Lee),안석환(S . H . Ahn),남기우(K . W . Nam),강창룡(C . Y . Kang) 한국열처리공학회 2001 熱處理工學會誌 Vol.14 No.4
N/A The characteristics of super duplex stainless steel were investigated on its fibrous structure and dispersed structure. These structures consist of various volume fractions and distributions of the austenite phase that were obtained by changing the heat treatment temperature and cycle. The fibrous structure had higher austenite volume fraction than dispersed structure on the same temperature. As the austenite volume fraction increased in both structures, tensile strength and elongation increased, but hardness decreased. Fatigue life of fibrous structure parallel to rolling direction was shorter than that of perpendicular to rolling direction. Fatigue life of dispersed structure was longer than parallel fibrous structure, and shorter than perpendicular fibrous structure. Fatigue crack propagation race of fibrous structure was faster than that of dispersed structure.
전재억(J. U. Jun),신규동(K. D. Sin),이경국(K. K. Lee),도재윤(J.Y. Do),하만경(M. K. Ha) 한국기계가공학회 2008 한국기계가공학회 춘추계학술대회 논문집 Vol.2008 No.-
The need expands ATV currently to the forestry agriculture fisheries handicappedd person and is becoming. but the development of the industry about this have been processed but are slow. The example to be his representative is the industry about ATV. A gear action of ATV is not currently the action of a differential gear. A gear action revolves the wheel with same power to the rotational requency. We have therefore many when we revolve problem. The power is delivered at this by a chain action. We drew and a plan ATV' LSD which can restrict the transmit of the action ultimately.