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Controlling the Solid-State Reaction in $Fe-MoS_{2}$ Self-Lubricating Composites for Optimized Tribological Properties
| Content Provider | MDPI |
|---|---|
| Author | Lima, Gabriel Araujo De Klein, Aloisio Nelmo Furlan, Kaline Pagnan |
| Copyright Year | 2022 |
| Description | In this work, self-lubricating composites containing $MoS_{2}$ and graphite dispersed in an iron matrix were produced by powder metallurgy and sintering. Previous studies demonstrate that $MoS_{2}$ reacts with iron matrixes during sintering, making the production of $Fe-MoS_{2}$ composites rather difficult. Therefore, this study focused on a potential solution to avoid or reduce this reaction, whilst still providing good tribological properties. Our results show that the addition of graphite retards the reaction of $MoS_{2}$ with iron and that the combination of $MoS_{2}$ + graphite results in composites with an optimized coefficient of friction associated with a low wear rate both in nitrogen and air atmospheres. Through adequate control of the lubricant’s particle size, composition, and processing parameters, self-lubricating iron-based composites with a low dry coefficient of friction (0.07) and low wear rate (5 × $10^{−6}$ $mm^{3}·N^{−1}·m^{−1}$) were achieved. |
| Starting Page | 142 |
| e-ISSN | 20754442 |
| DOI | 10.3390/lubricants10070142 |
| Journal | Lubricants |
| Issue Number | 7 |
| Volume Number | 10 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-07-06 |
| Access Restriction | Open |
| Subject Keyword | Lubricants Manufacturing Engineering Self-lubricating Composites Sintering Solid Lubricants Tribological Properties |
| Content Type | Text |
| Resource Type | Article |
