In this paper,fatigue damage development of 14MoV6-3(13HMF)power engineering steel was studied through different experimental and analytical approaches.The specimens machined from the as-received pipe were subjected t...In this paper,fatigue damage development of 14MoV6-3(13HMF)power engineering steel was studied through different experimental and analytical approaches.The specimens machined from the as-received pipe were subjected to fatigue loading and simultaneously monitored using the digital image correlation(DIC)technique.The damage development was analysed through microstructural observations of fracture surfaces and further described as a function of the fatigue damage parameter D and the fatigue damage measureφ.The combination of such parameters’evolution with the number of cycles to failure and the DIC technique enables a determination of separate stages of damage development.It was found that dynamics of damage could be effectively exposed within the first 100 cycles.展开更多
基金supported by the National Science Centre through Grant(No.2019/35/B/ST8/03151).
文摘In this paper,fatigue damage development of 14MoV6-3(13HMF)power engineering steel was studied through different experimental and analytical approaches.The specimens machined from the as-received pipe were subjected to fatigue loading and simultaneously monitored using the digital image correlation(DIC)technique.The damage development was analysed through microstructural observations of fracture surfaces and further described as a function of the fatigue damage parameter D and the fatigue damage measureφ.The combination of such parameters’evolution with the number of cycles to failure and the DIC technique enables a determination of separate stages of damage development.It was found that dynamics of damage could be effectively exposed within the first 100 cycles.
