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Tribofilm Formation of PTFE-Cr on Different Counterbody Materials for Dry Sliding Applications

Haque, Faysal Mahmud Anzamul
http://orcid.org/0009-0005-6288-3675
http://rave.ohiolink.edu/etdc/view?acc_num=miami1689868947385621

Abstract Details

2023, Master of Science, Miami University, Mechanical Engineering.
Unfilled PTFE has a low friction coefficient, but also a high wear rate (K~10-4-10-3 mm3/Nm). Different filler materials can reduce the wear rate of PTFE by ~104 against 304 SS. These ultra-low wear composites form a film between the sliding interfaces which lowers the wear rate. The film observed on the counterbody is known as transfer film. Recently three metal filler (Cr, Ti, Mn) particles were able to achieve ultra-low wear rate against Brass 260 but mixed performance against 304 SS. This discovery motivated to explore other countebodies such as Cu110 and Zn. The test showed high variation in friction coefficient and wear rate among different counterbodies. Hence the transfer film needed to be analyzed to find the relation between these fillers and counterbodies other than 304 SS. PTFE-Cr was chosen for this study as it showed the most variation among the counterbodies (~2× variation in μ and 1000× variation in wear rate). PTFE-Cr showed lowest wear rate against Brass 260 (K~7.1×10-9 mm3/Nm with desired transfer film properties: coverage (Lf~50 μm @ 50 m), thickness (~300 nm), surface energy (~35 mJ/m2), low friction coefficient(μ~0.2). Cu 110, 304 SS, and Zn coated steel showed abrasive wear resulted in high wear rate.
Mark Sidebottom (Advisor)
Zhijiang Ye (Committee Member)
Giancarlo Corti (Committee Member)
Andrew Sommers (Committee Member)
47 p.
Mechanical Engineering
Solid Lubricant, Polymer Wear, Tribology

Recommended Citations

Citations

  • Haque, F. M. A. (2023). Tribofilm Formation of PTFE-Cr on Different Counterbody Materials for Dry Sliding Applications [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1689868947385621

    APA Style (7th edition)

  • Haque, Faysal. Tribofilm Formation of PTFE-Cr on Different Counterbody Materials for Dry Sliding Applications. 2023. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1689868947385621.

    MLA Style (8th edition)

  • Haque, Faysal. "Tribofilm Formation of PTFE-Cr on Different Counterbody Materials for Dry Sliding Applications." Master's thesis, Miami University, 2023. http://rave.ohiolink.edu/etdc/view?acc_num=miami1689868947385621

    Chicago Manual of Style (17th edition)

miami1689868947385621
102
© 2023, some rights reserved.Creative Commons License Tribofilm Formation of PTFE-Cr on Different Counterbody Materials for Dry Sliding Applications by Faysal Mahmud Anzamul Haque is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Miami University and OhioLINK.