K. Maile et al., DESCRIPTION OF CREEP AND CREEP-FATIGUE CRACK-GROWTH IN 1-PERCENT AND 9-PERCENT CR STEELS, Materials at high temperatures, 15(2), 1998, pp. 131-137
Creep crack growth tests on a 1CrMoV steel are presented, covering the
aspects of specimen size, geometry and service-like stresses. To cons
ider nonstationary loading in modern plants creep fatigue crack growth
tests have been started. As test materials a 1CrMoV steel and a modem
9%Cr-steel were used. By means of a comparison of creep crack and cre
ep fatigue crack results the effectiveness of the fracture mechanics p
arameters K-l, Delta K-l and C could be evaluated.