Abstract
The impact wear mechanism of compacted graphite cast iron (CGI) at different temperatures (room temperature, 300 °C, 400 °C, and 500 °C) and impact frequencies (10 Hz, 12 Hz, and 14 Hz) was analyzed. The mass losses increase with test temperatures, impact frequencies and numbers. When the temperature increases to 500 °C, shallow, deep-spalling, and oxidation are the main wear mechanism of CGI. Metal oxides are generated and shed repeatedly, which can accelerate the impact wear of CGI. In addition, there are mainly two cracking modes during the impact wear test (I) Micro-cracks can generate preferentially in the graphite cavities, caused by surficial graphite falling off affected by the high-frequency shocks. The graphite cavities and micro-cracks can coalesce with each other to form the main crack (Ⅱ) The hard metal particles due to fatigue spalling can inset in the soft matrix and cause cracking.
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.
