Abstract
The initiation of fatigue cracks in a TiB2-reinforced high-modulus, low-density steel was revealed by in-situ scanning electron microscopy for the first time. The results show that the superior interfacial strength between the TiB2particles and the matrix prevents the initiation of micro-cracks at the interfaces. Fatigue micro-cracks are mainly induced by the brittle fracture of small eutectic TiB2 particles, while the coalescence of these micro-cracks plays the major role in the fatigue failure. This failure mechanism is essentially different from the static tensile failure mode in which the large primary TiB2 particles are the main source of fracture failure.
Sign-in/Register to access full text options 
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.
