Tribological Effects of Martian Regoliths on Stainless Steel with Natural and Composite Lip Seal and Packing Materials
We have investigated the sealing performance of different sealants and the abrasive effect of some Martian regolith simulants (MGS-1 and JEZ-1) by pin-on-disc tests using steel and various pin material pairs. Pin materials, representing sealants, were present in the following two forms: block types,...
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MDPI AG
2025-03-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/13/4/136 |
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| author | Gábor Kalácska György Barkó Tamás Bálint Róbert Keresztes László Székely Zoltán Károly |
| author_facet | Gábor Kalácska György Barkó Tamás Bálint Róbert Keresztes László Székely Zoltán Károly |
| author_sort | Gábor Kalácska |
| collection | DOAJ |
| description | We have investigated the sealing performance of different sealants and the abrasive effect of some Martian regolith simulants (MGS-1 and JEZ-1) by pin-on-disc tests using steel and various pin material pairs. Pin materials, representing sealants, were present in the following two forms: block types, such as pure polytetrafluoroethylene (PTFE) and composite PTFE, as well as braided pins, including pure and hybrid composite PTFE. Friction resistance, wear, surface roughness, and electron microscopy analyses were used to evaluate the tribological properties. We found significant differences between the block-type and braided pin materials regarding the sealing and wear performance. The braided pins either reached stabilized coefficients of friction at a much higher level (0.55) than the block-type pins or did not stabilize at all during the longest test duration. Martian regoliths resulted in negligible wear regarding the disc, but the hybrid composite braided pins were severely worn, causing the abrasion test to be stopped before schedule. |
| format | Article |
| id | doaj-art-afc7ea6934f044eab027736b91e58283 |
| institution | DOAJ |
| issn | 2075-4442 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-afc7ea6934f044eab027736b91e582832025-08-20T03:13:52ZengMDPI AGLubricants2075-44422025-03-0113413610.3390/lubricants13040136Tribological Effects of Martian Regoliths on Stainless Steel with Natural and Composite Lip Seal and Packing MaterialsGábor Kalácska0György Barkó1Tamás Bálint2Róbert Keresztes3László Székely4Zoltán Károly5Institute of Technology, Szent István Campus, Hungarian University of Agriculture and Life Sciences (MATE), Páter K. u. 1., H-2100 Gödöllő, HungaryInstitute of Technology, Szent István Campus, Hungarian University of Agriculture and Life Sciences (MATE), Páter K. u. 1., H-2100 Gödöllő, HungaryInstitute of Technology, Szent István Campus, Hungarian University of Agriculture and Life Sciences (MATE), Páter K. u. 1., H-2100 Gödöllő, HungaryInstitute of Technology, Szent István Campus, Hungarian University of Agriculture and Life Sciences (MATE), Páter K. u. 1., H-2100 Gödöllő, HungaryDepartment of Mathematics and Modelling, Institute of Mathematics and Basic Science, Szent István Campus, Hungarian University of Agriculture and Life Sciences (MATE), Páter K. u. 1., H-2100 Gödöllő, HungaryInstitute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Magyar Tudósok krt. 2., H-1117 Budapest, HungaryWe have investigated the sealing performance of different sealants and the abrasive effect of some Martian regolith simulants (MGS-1 and JEZ-1) by pin-on-disc tests using steel and various pin material pairs. Pin materials, representing sealants, were present in the following two forms: block types, such as pure polytetrafluoroethylene (PTFE) and composite PTFE, as well as braided pins, including pure and hybrid composite PTFE. Friction resistance, wear, surface roughness, and electron microscopy analyses were used to evaluate the tribological properties. We found significant differences between the block-type and braided pin materials regarding the sealing and wear performance. The braided pins either reached stabilized coefficients of friction at a much higher level (0.55) than the block-type pins or did not stabilize at all during the longest test duration. Martian regoliths resulted in negligible wear regarding the disc, but the hybrid composite braided pins were severely worn, causing the abrasion test to be stopped before schedule.https://www.mdpi.com/2075-4442/13/4/136Martian regolithssealantsabrasive testwearfriction |
| spellingShingle | Gábor Kalácska György Barkó Tamás Bálint Róbert Keresztes László Székely Zoltán Károly Tribological Effects of Martian Regoliths on Stainless Steel with Natural and Composite Lip Seal and Packing Materials Lubricants Martian regoliths sealants abrasive test wear friction |
| title | Tribological Effects of Martian Regoliths on Stainless Steel with Natural and Composite Lip Seal and Packing Materials |
| title_full | Tribological Effects of Martian Regoliths on Stainless Steel with Natural and Composite Lip Seal and Packing Materials |
| title_fullStr | Tribological Effects of Martian Regoliths on Stainless Steel with Natural and Composite Lip Seal and Packing Materials |
| title_full_unstemmed | Tribological Effects of Martian Regoliths on Stainless Steel with Natural and Composite Lip Seal and Packing Materials |
| title_short | Tribological Effects of Martian Regoliths on Stainless Steel with Natural and Composite Lip Seal and Packing Materials |
| title_sort | tribological effects of martian regoliths on stainless steel with natural and composite lip seal and packing materials |
| topic | Martian regoliths sealants abrasive test wear friction |
| url | https://www.mdpi.com/2075-4442/13/4/136 |
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