Effects of Gold Mine Tailings as an Additive on the Tribological Performance of Lubricating Polyurea Grease
Lubricating greases with varying proportions of gold mine tailings or SiO<sub>2</sub> as additives were prepared, and their friction and wear performance were evaluated using a four-ball tribometer. Scanning electron microscopy and three-dimensional surface profilometry were employed to...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/13/4/159 |
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| author | Xiaodong Liu Heping Wang Rongshe Wang Binglong Zhang Jiqing Wang Wei Wang Xihong He |
| author_facet | Xiaodong Liu Heping Wang Rongshe Wang Binglong Zhang Jiqing Wang Wei Wang Xihong He |
| author_sort | Xiaodong Liu |
| collection | DOAJ |
| description | Lubricating greases with varying proportions of gold mine tailings or SiO<sub>2</sub> as additives were prepared, and their friction and wear performance were evaluated using a four-ball tribometer. Scanning electron microscopy and three-dimensional surface profilometry were employed to analyze the thickener properties and wear patterns on the steel balls. The results indicated that the addition of gold mine tailings significantly improved the friction-reducing and wear-resistant properties of the base grease compared with SiO<sub>2</sub>. At the optimal concentration of 3 wt%, the addition of gold mine tailings reduced the coefficient of friction and wear scar diameter of the base grease by 43.2% and 21.1%, respectively, yielding the best performance among the 11 tested samples. Further analysis revealed that silicate and calcium carbonate particles in the gold mine tailings were deposited on the surface, forming a protective layer. This layer, along with the grease film, contributed to substantial reductions in both friction and wear. |
| format | Article |
| id | doaj-art-1ce173139f7241ffbf87fdd31bab2bfa |
| institution | DOAJ |
| issn | 2075-4442 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-1ce173139f7241ffbf87fdd31bab2bfa2025-08-20T03:13:52ZengMDPI AGLubricants2075-44422025-04-0113415910.3390/lubricants13040159Effects of Gold Mine Tailings as an Additive on the Tribological Performance of Lubricating Polyurea GreaseXiaodong Liu0Heping Wang1Rongshe Wang2Binglong Zhang3Jiqing Wang4Wei Wang5Xihong He6Shaanxi Geological and Mineral Sixth Geological Team Co., Ltd., Xi’an 710611, ChinaShaanxi Geological and Mineral Sixth Geological Team Co., Ltd., Xi’an 710611, ChinaShaanxi Geological and Mineral Sixth Geological Team Co., Ltd., Xi’an 710611, ChinaSchool of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaLubricating greases with varying proportions of gold mine tailings or SiO<sub>2</sub> as additives were prepared, and their friction and wear performance were evaluated using a four-ball tribometer. Scanning electron microscopy and three-dimensional surface profilometry were employed to analyze the thickener properties and wear patterns on the steel balls. The results indicated that the addition of gold mine tailings significantly improved the friction-reducing and wear-resistant properties of the base grease compared with SiO<sub>2</sub>. At the optimal concentration of 3 wt%, the addition of gold mine tailings reduced the coefficient of friction and wear scar diameter of the base grease by 43.2% and 21.1%, respectively, yielding the best performance among the 11 tested samples. Further analysis revealed that silicate and calcium carbonate particles in the gold mine tailings were deposited on the surface, forming a protective layer. This layer, along with the grease film, contributed to substantial reductions in both friction and wear.https://www.mdpi.com/2075-4442/13/4/159gold mine tailingsLubricating greasesfriction performance |
| spellingShingle | Xiaodong Liu Heping Wang Rongshe Wang Binglong Zhang Jiqing Wang Wei Wang Xihong He Effects of Gold Mine Tailings as an Additive on the Tribological Performance of Lubricating Polyurea Grease Lubricants gold mine tailings Lubricating greases friction performance |
| title | Effects of Gold Mine Tailings as an Additive on the Tribological Performance of Lubricating Polyurea Grease |
| title_full | Effects of Gold Mine Tailings as an Additive on the Tribological Performance of Lubricating Polyurea Grease |
| title_fullStr | Effects of Gold Mine Tailings as an Additive on the Tribological Performance of Lubricating Polyurea Grease |
| title_full_unstemmed | Effects of Gold Mine Tailings as an Additive on the Tribological Performance of Lubricating Polyurea Grease |
| title_short | Effects of Gold Mine Tailings as an Additive on the Tribological Performance of Lubricating Polyurea Grease |
| title_sort | effects of gold mine tailings as an additive on the tribological performance of lubricating polyurea grease |
| topic | gold mine tailings Lubricating greases friction performance |
| url | https://www.mdpi.com/2075-4442/13/4/159 |
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