Corrosion and wear study of medium entropy Pb-Sn-Cu alloy for coating application
This study focuses on developing a low-friction coating material using ternary medium entropy alloy using lead (Pb), tin (Sn), and copper (Cu). A Vajra Lep made of Pb-Sn-Cu system reported in Varah Mihir's Jyotish Granth ''Brihat-Samhita'' inspired this research. The reporte...
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Elsevier
2025-03-01
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| Series: | Journal of Alloys and Metallurgical Systems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949917825000069 |
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| author | Gokul M. Pillai Kuldeep Singh Shanmugasundaram Thangaraju Shashinath Jha Vinod Kumar |
| author_facet | Gokul M. Pillai Kuldeep Singh Shanmugasundaram Thangaraju Shashinath Jha Vinod Kumar |
| author_sort | Gokul M. Pillai |
| collection | DOAJ |
| description | This study focuses on developing a low-friction coating material using ternary medium entropy alloy using lead (Pb), tin (Sn), and copper (Cu). A Vajra Lep made of Pb-Sn-Cu system reported in Varah Mihir's Jyotish Granth ''Brihat-Samhita'' inspired this research. The reported alloy in the present study was fabricated via the open induction casting method. The microstructure and phase analysis were conducted using a scanning electron microscope and X-ray diffraction. It revealed that Pb-Sn, Pb-rich, and Cu-Sn stable phases are formed during open induction melting-casting. The average microhardness was measured to be 25.3 ± 13.61 HV, suitable for the coating material. The corrosion tests were performed in 3.5 wt% NaCl medium, which showed the formation of a stable passivation layer. Icorr was determined to be 5.63 × 10−7 A/cm2, confirming that the material has high corrosion resistance compared to SS316. The wear tests were carried out at different temperatures with a constant load of 10 N and sliding velocity of 314 mm/s. The wear rate was noted to be 5.623 × 10−5 mm3/Nm at room temperature and decreased to 2.811 x 10−5 mm3/Nm at 80 ℃, exhibiting comparable wear resistance with that of Babbitt alloys. Hence, the study is meaningful in designing the Pb-Sn-Cu based multicomponent alloy system as a coating material for various applications. |
| format | Article |
| id | doaj-art-511aac385e12410d9856dea1343b4fc0 |
| institution | Kabale University |
| issn | 2949-9178 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Alloys and Metallurgical Systems |
| spelling | doaj-art-511aac385e12410d9856dea1343b4fc02025-02-04T04:10:43ZengElsevierJournal of Alloys and Metallurgical Systems2949-91782025-03-019100156Corrosion and wear study of medium entropy Pb-Sn-Cu alloy for coating applicationGokul M. Pillai0Kuldeep Singh1Shanmugasundaram Thangaraju2Shashinath Jha3Vinod Kumar4Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Khandwa Rd, Simrol, Madhya Pradesh 453552, IndiaDepartment of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Khandwa Rd, Simrol, Madhya Pradesh 453552, IndiaDepartment of Metallurgical & Materials Engineering, Defence Institute of Advanced Technology, (Deemed to be University), Girinagar, Pune 411025, IndiaKameshwar Singh Darbhanga Sanskrit University, Kameshwar Nagar, Darbhanga, Bihar 846008, IndiaDepartment of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Khandwa Rd, Simrol, Madhya Pradesh 453552, India; Center for Indian Scientific Knowledge Systems, Indian Institute of Technology Indore, Khandwa Rd, Simrol, Madhya Pradesh 453552, India; Corresponding author at: Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Khandwa Rd, Simrol, Madhya Pradesh 453552, India.This study focuses on developing a low-friction coating material using ternary medium entropy alloy using lead (Pb), tin (Sn), and copper (Cu). A Vajra Lep made of Pb-Sn-Cu system reported in Varah Mihir's Jyotish Granth ''Brihat-Samhita'' inspired this research. The reported alloy in the present study was fabricated via the open induction casting method. The microstructure and phase analysis were conducted using a scanning electron microscope and X-ray diffraction. It revealed that Pb-Sn, Pb-rich, and Cu-Sn stable phases are formed during open induction melting-casting. The average microhardness was measured to be 25.3 ± 13.61 HV, suitable for the coating material. The corrosion tests were performed in 3.5 wt% NaCl medium, which showed the formation of a stable passivation layer. Icorr was determined to be 5.63 × 10−7 A/cm2, confirming that the material has high corrosion resistance compared to SS316. The wear tests were carried out at different temperatures with a constant load of 10 N and sliding velocity of 314 mm/s. The wear rate was noted to be 5.623 × 10−5 mm3/Nm at room temperature and decreased to 2.811 x 10−5 mm3/Nm at 80 ℃, exhibiting comparable wear resistance with that of Babbitt alloys. Hence, the study is meaningful in designing the Pb-Sn-Cu based multicomponent alloy system as a coating material for various applications.http://www.sciencedirect.com/science/article/pii/S2949917825000069Babitt AlloyEntropyCorrosionWearCoating |
| spellingShingle | Gokul M. Pillai Kuldeep Singh Shanmugasundaram Thangaraju Shashinath Jha Vinod Kumar Corrosion and wear study of medium entropy Pb-Sn-Cu alloy for coating application Journal of Alloys and Metallurgical Systems Babitt Alloy Entropy Corrosion Wear Coating |
| title | Corrosion and wear study of medium entropy Pb-Sn-Cu alloy for coating application |
| title_full | Corrosion and wear study of medium entropy Pb-Sn-Cu alloy for coating application |
| title_fullStr | Corrosion and wear study of medium entropy Pb-Sn-Cu alloy for coating application |
| title_full_unstemmed | Corrosion and wear study of medium entropy Pb-Sn-Cu alloy for coating application |
| title_short | Corrosion and wear study of medium entropy Pb-Sn-Cu alloy for coating application |
| title_sort | corrosion and wear study of medium entropy pb sn cu alloy for coating application |
| topic | Babitt Alloy Entropy Corrosion Wear Coating |
| url | http://www.sciencedirect.com/science/article/pii/S2949917825000069 |
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