Abstract
In order to improve the tribological properties of zinc-based alloy, SiC nanoparticles (an average grain size of 100 nm) were reinforced into Zn–38Al–3.5Cu–1.2 Mg alloy through a high-pressure jetting powder and semisolid stirring-assisted ultrasonic vibration process. In the present study, the effects of different SiC contents (0 wt%, 0.07 wt%, 0.13 wt%, and 0.22 wt%) on microstructural properties and wear behavior of the as-cast alloy were investigated in detail. The results indicated that a uniform and dispersive distribution of SiC nanoparticles was observed in the Zn–Al matrix, thus leading to a significant enhancement in wear behavior of Zn–38Al–3.5Cu–1.2 Mg alloy. Further, with the increasing mass fraction of SiC nanoparticles, wear resistance of Zn–38Al–3.5Cu–1.2 Mg alloy was noticeably improved in spite of the increasing friction temperature. The increased wear resistance of Zn–38Al–3.5Cu–1.2 Mg alloy at high friction temperature could be attributed to the presence of uniformly dispersed thermostable SiC nanoparticles, which inhibited the transformation of the abrasion-resistant phase of α + η mixture to the soft phase of α and η on the friction heating interface.
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.
