A Study on the Fatigue Crack Propagation Characteristics for SUP9 Steel at Low Temperature

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J. Ocean Eng. Technol. 2002;16(5):80-87.

SUP9강의 저온피로크랙 전파특성에 관한 연구

박경동,박상오

부경대학교 기계공학부,부경대학교 대학원 기계공학부

Keywords: Shot Peening, Residual Stress, Low Temperature, Fatigue Crack Propagation

핵심용어: 쇼트 피이닝, 잔류응력, 저온, 피로균열전파

Abstract

In this study, CT specimens were prepared from spring steel(SUP9) which was used in suspension of automobile for room temperature and low temperature service. We got the following characteristics from fatigue crack growth test carried out in the environment of room temperature and low temperature at $25^{circ}C$,

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