A study on the Fatigal Crack Grow for SA 516-70 steel at low temperature

SA 516-70 압력용기용 강판의 저온피로 균열 진전 특성에 관한 연구

Fatigue crack propagaion rates and characteristics of the SA516-70 steel which is used for the low temperature pressure vessels, were studied in the room temperature of 1$0^{\circ}C$ and low temperature ranges of -1$0^{\circ}C$, -3$0^{\circ}C$, -5$0^{\circ}C$, -7$0^{\circ}C$ with stress ratio of R＝0.05.