Abstract
ABSTRACTBy means of creep properties measurement and microstructure observation, the creep and damage behaviours of the Mo-containing single crystal Ni-based superalloys at high temperature are investigated. Results show that the 6wt%Mo single crystal Ni-based superalloy displays a better creep resistance at high temperature, wherein, the deformation feature of alloy in the later stage of creep is dislocations shearing into γ′ phase. As the creep goes on, the alternating slipping of dislocations results in the twisted of the rafted γ′/γ phases to promote the initiation and propagation of cracks, along the rafted γ/γ′ interfaces perpendicular to the stress axis, up to creep fracture. This is thought to be the damage features of the alloy during creep.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
