Fretting Behavior of Thermoplastic Polyurethanes
Fretting tests were conducted with five different thermoplastic polyurethanes against a steel ball. Their fretting behaviors were investigated under various test parameters, such as normal load and displacement amplitude. In order to test the sliding performances, tribological tests were conducted u...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-08-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/7/9/73 |
| _version_ | 1818001031048462336 |
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| author | Chao Wang Andreas Hausberger Michael Berer Gerald Pinter Florian Grün Thomas Schwarz |
| author_facet | Chao Wang Andreas Hausberger Michael Berer Gerald Pinter Florian Grün Thomas Schwarz |
| author_sort | Chao Wang |
| collection | DOAJ |
| description | Fretting tests were conducted with five different thermoplastic polyurethanes against a steel ball. Their fretting behaviors were investigated under various test parameters, such as normal load and displacement amplitude. In order to test the sliding performances, tribological tests were conducted using a ring-on-disc setup. The results show that their fretting behaviors can be related to the dynamic mechanical properties, which were characterized by dynamic mechanical analysis (DMA). The three fretting regimes were identified by means of hysteresis and wear scar analysis. In addition, investigations were carried out until the transition regimes occurred. Different wear processes were revealed for each of the three regimes. Differences were identified using dissipated energy. The profiles of wear scars and the counterparts were analyzed using a microscope. The coefficient of friction was calculated separately for the partial slip and gross slip regimes. In the mixed fretting regime, the coefficient of friction is almost at the same level among the five materials. In the partial slip regime, however, it can be distinguished. Temperature measurements were conducted on the counterparts during the tests. Overall, the material that showed the best tribological properties also performed the best in the fretting tests. |
| first_indexed | 2024-04-14T03:29:12Z |
| format | Article |
| id | doaj.art-80a85af881ef4c9da803f0158c95bfe6 |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-04-14T03:29:12Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-80a85af881ef4c9da803f0158c95bfe62022-12-22T02:15:02ZengMDPI AGLubricants2075-44422019-08-01797310.3390/lubricants7090073lubricants7090073Fretting Behavior of Thermoplastic PolyurethanesChao Wang0Andreas Hausberger1Michael Berer2Gerald Pinter3Florian Grün4Thomas Schwarz5Polymer Competence Center Leoben GmbH, 8700 Leoben, AustriaPolymer Competence Center Leoben GmbH, 8700 Leoben, AustriaPolymer Competence Center Leoben GmbH, 8700 Leoben, AustriaMaterials Science and Testing of Polymers, Montanuniversität Leoben, 8700 Leoben, AustriaMechanical Engineering, Montanuniversität Leoben, 8700 Leoben, AustriaSKF Sealing Solutions Austria GmbH, 8750 Judenburg, AustriaFretting tests were conducted with five different thermoplastic polyurethanes against a steel ball. Their fretting behaviors were investigated under various test parameters, such as normal load and displacement amplitude. In order to test the sliding performances, tribological tests were conducted using a ring-on-disc setup. The results show that their fretting behaviors can be related to the dynamic mechanical properties, which were characterized by dynamic mechanical analysis (DMA). The three fretting regimes were identified by means of hysteresis and wear scar analysis. In addition, investigations were carried out until the transition regimes occurred. Different wear processes were revealed for each of the three regimes. Differences were identified using dissipated energy. The profiles of wear scars and the counterparts were analyzed using a microscope. The coefficient of friction was calculated separately for the partial slip and gross slip regimes. In the mixed fretting regime, the coefficient of friction is almost at the same level among the five materials. In the partial slip regime, however, it can be distinguished. Temperature measurements were conducted on the counterparts during the tests. Overall, the material that showed the best tribological properties also performed the best in the fretting tests.https://www.mdpi.com/2075-4442/7/9/73frettingwearfatiguecoefficient of frictionTPU |
| spellingShingle | Chao Wang Andreas Hausberger Michael Berer Gerald Pinter Florian Grün Thomas Schwarz Fretting Behavior of Thermoplastic Polyurethanes Lubricants fretting wear fatigue coefficient of friction TPU |
| title | Fretting Behavior of Thermoplastic Polyurethanes |
| title_full | Fretting Behavior of Thermoplastic Polyurethanes |
| title_fullStr | Fretting Behavior of Thermoplastic Polyurethanes |
| title_full_unstemmed | Fretting Behavior of Thermoplastic Polyurethanes |
| title_short | Fretting Behavior of Thermoplastic Polyurethanes |
| title_sort | fretting behavior of thermoplastic polyurethanes |
| topic | fretting wear fatigue coefficient of friction TPU |
| url | https://www.mdpi.com/2075-4442/7/9/73 |
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