Effect of temperature on the KIscc of steam turbine disc material

✍ Scribed by V. M. Radhakrishnan; K. Venugopal; M. N. Chandrasekharaiah

• Publisher: John Wiley and Sons
• Year: 1980
• Tongue: German
• Weight: 666 KB
• Volume: 31
• Category: Article
• ISSN: 0947-5117
• DOI: 10.1002/maco.19800310904

✦ Synopsis

Abstract

A fracture mechanics approach has been used to evaluate the critical stress intensity factor in the corrosive environment (K~Iscc~) of a 1.5 NiCrMo steel in the temperature range of 50 to 100° C. The K~Iscc~ value has been found to decrease with increasing temperature of the corrodent. The microscopic and macroscopic features of crack propagation under stress corrosion conditions have been discussed.