Abstract
The objective of this study is to evaluate the effects of ultrasonic nanocrystal surface modification (UNSM) on the tribological behavior of WC-Co thermal spray coatings for fuel-lubricated components. UNSM reduced the average surface roughness from 4.22 µm down to 2.26 µm and increased the hardness from 861 HV1 up to 1091 HV1. UNSM reduced the intensity and broadened the full width at half maximum of X-ray diffraction peaks, which indicated a combination of refinement in grain size and introduction of compressive residual stress. The coefficient of friction under fuel lubrication was reduced significantly by UNSM from 0.083 to 0.011, while the specific wear rate decreased from 6.21 ± 1.41 × 10−13 mm3/N × m to 2.07 ± 0.36 × 10−13 mm3/N × m after UNSM.
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.
