2006 | OriginalPaper | Buchkapitel
Fatigue Crack Propagation of Super-Duplex Stainless Steel at Different Temperatures
verfasst von : G. Chai, S. Johansson
Erschienen in: Fracture of Nano and Engineering Materials and Structures
Verlag: Springer Netherlands
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The fatigue crack propagation behaviour in an austenite-ferrite two phase super-duplex stainless steel (SDSS) (UNS S32750) has been investigated at temperatures from −50°C to 150°C. Two material conditions (as delivered condition-AD and aged condition (475 °C/4h)) and two stress ratio values (R=0,1 and 0,5) were used. The fatigue crack propagation rate, threshold value, closure and fracture behaviour have been studied.