Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents
In order to explore the influence of rare earth element Y on the electrical contact properties of Pt–Ir alloys, Pt–10Ir–Y and Pt–25Ir–Y were prepared via arc melting combined with thermal processing, and electrical contact experiments were carried out with a DC voltage of 24 V and current ranging fr...
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MDPI AG
2023-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/9/1589 |
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| author | Saibei Wang Song Wang Yong Sun Song Chen Aikun Li Jieqiong Hu Mingjun Peng Ming Xie |
| author_facet | Saibei Wang Song Wang Yong Sun Song Chen Aikun Li Jieqiong Hu Mingjun Peng Ming Xie |
| author_sort | Saibei Wang |
| collection | DOAJ |
| description | In order to explore the influence of rare earth element Y on the electrical contact properties of Pt–Ir alloys, Pt–10Ir–Y and Pt–25Ir–Y were prepared via arc melting combined with thermal processing, and electrical contact experiments were carried out with a DC voltage of 24 V and current ranging from 5 A to 25 A. Comparative analyses were conducted to analyze the changes in the break arc duration and arc energy, as well as the contact resistance before and after the addition of Y. The arc erosion surface morphology was characterized, and the transfer behavior of the alloys was discussed. The results show that at 5 A and 25 A, adding Y improves the stability of the arc duration of the Pt–Ir alloy, but it increases the overall arcing energy and decreases the stability. The contact resistance of the Pt–Ir alloy shows a clear partitioning phenomenon; the partitioning phenomenon disappears after the addition of Y, and the contact resistance fluctuates around the average value. The material transfer direction of the Pt–Ir alloy is affected by the current change, while the material transfer direction of the Pt–Ir–Y alloy is always from cathode to anode. The research results provide a reference for the performance optimization of Pt–Ir alloys. |
| first_indexed | 2024-03-10T22:28:31Z |
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| id | doaj.art-ebf2f4467f2b4ece854170d82aea7dcf |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T22:28:31Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-ebf2f4467f2b4ece854170d82aea7dcf2023-11-19T11:57:04ZengMDPI AGMetals2075-47012023-09-01139158910.3390/met13091589Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different CurrentsSaibei Wang0Song Wang1Yong Sun2Song Chen3Aikun Li4Jieqiong Hu5Mingjun Peng6Ming Xie7Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKunming Institute of Precious Metals, No. 988, Keji Road, Kunming 650106, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKunming Institute of Precious Metals, No. 988, Keji Road, Kunming 650106, ChinaKunming Institute of Precious Metals, No. 988, Keji Road, Kunming 650106, ChinaKunming Institute of Precious Metals, No. 988, Keji Road, Kunming 650106, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKunming Institute of Precious Metals, No. 988, Keji Road, Kunming 650106, ChinaIn order to explore the influence of rare earth element Y on the electrical contact properties of Pt–Ir alloys, Pt–10Ir–Y and Pt–25Ir–Y were prepared via arc melting combined with thermal processing, and electrical contact experiments were carried out with a DC voltage of 24 V and current ranging from 5 A to 25 A. Comparative analyses were conducted to analyze the changes in the break arc duration and arc energy, as well as the contact resistance before and after the addition of Y. The arc erosion surface morphology was characterized, and the transfer behavior of the alloys was discussed. The results show that at 5 A and 25 A, adding Y improves the stability of the arc duration of the Pt–Ir alloy, but it increases the overall arcing energy and decreases the stability. The contact resistance of the Pt–Ir alloy shows a clear partitioning phenomenon; the partitioning phenomenon disappears after the addition of Y, and the contact resistance fluctuates around the average value. The material transfer direction of the Pt–Ir alloy is affected by the current change, while the material transfer direction of the Pt–Ir–Y alloy is always from cathode to anode. The research results provide a reference for the performance optimization of Pt–Ir alloys.https://www.mdpi.com/2075-4701/13/9/1589Pt–Ir alloyyttriumarc erosionmaterial transfer |
| spellingShingle | Saibei Wang Song Wang Yong Sun Song Chen Aikun Li Jieqiong Hu Mingjun Peng Ming Xie Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents Metals Pt–Ir alloy yttrium arc erosion material transfer |
| title | Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents |
| title_full | Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents |
| title_fullStr | Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents |
| title_full_unstemmed | Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents |
| title_short | Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents |
| title_sort | break arc erosion and material transfer behavior of pt ir and pt ir y electrical contact materials under different currents |
| topic | Pt–Ir alloy yttrium arc erosion material transfer |
| url | https://www.mdpi.com/2075-4701/13/9/1589 |
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