Abstract
Reverse bending fatigue tests were carried out on a Pb-Sn solid solution alloy at room temperature. Microstructural changes occurring during cyclic deformation at small numbers of test cycles were studied. Observations on the surface of test specimens show that grain boundaries migrate and slide extensively during cyclic deformation at low test frequencies. In addition, microcavities are formed along the migrating boundaries leading to rows of cavities in the microstructure. Transmission electron microscopy of fatigued specimens showed the development of a well-defined subgrain structure and the formation of numerous cavities in the microstructure, reinforcing the observations on the surface. The morphology of grain boundaries, details of the fatigue induced microstructure, and substructural features around cracks and cavities are presented.
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.
