The Effects of Rare Earth Pr and Heat Treatment on the Wear Properties of AZ91 Alloy
This paper investigated the influences of Pr addition and heat treatment (T6) on the dry sliding wear behavior of AZ91 alloy. The wear rates and friction coefficients were measured by using a pin-on-disc tribometer under loads of 30, 60 and 90 N at dry sliding speeds of 100 rpm, over a sliding time...
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MDPI AG
2018-06-01
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| Series: | Crystals |
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| Online Access: | http://www.mdpi.com/2073-4352/8/6/256 |
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| author | Ning Li Hong Yan |
| author_facet | Ning Li Hong Yan |
| author_sort | Ning Li |
| collection | DOAJ |
| description | This paper investigated the influences of Pr addition and heat treatment (T6) on the dry sliding wear behavior of AZ91 alloy. The wear rates and friction coefficients were measured by using a pin-on-disc tribometer under loads of 30, 60 and 90 N at dry sliding speeds of 100 rpm, over a sliding time of 15 min. The worn surfaces were examined using a scanning electron microscope and was analyzed with an energy dispersive spectrometer. The experimental results revealed that AZ91-1.0%Pr magnesium alloy exhibited lower wear rate and friction coefficient than the other investigated alloys. As the applied load increased, the wear rate and friction coefficient increased. Compared with the as-cast AZ91-1.0%Pr magnesium alloy, the hardness and wear resistance of the alloy after solution treatment were reduced, and through the subsequent aging, the hardness and wear resistance of the alloy were improved and the hardness was 101.1 HB (compared to as-cast AZ91 magnesium alloy, it increased by 45%). The AZ91-1.0%Pr with T6 magnesium alloy exhibited best wear resistance. Abrasion was dominant at load of 30 N, delamination was dominant at load of 60 N and plastic deformation was dominant at load of 90 N. Oxidation was observed at all loads. |
| first_indexed | 2024-04-11T21:49:07Z |
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| id | doaj.art-0059a6f2637c4aad895bd17ea9f968b9 |
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| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T21:49:07Z |
| publishDate | 2018-06-01 |
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| series | Crystals |
| spelling | doaj.art-0059a6f2637c4aad895bd17ea9f968b92022-12-22T04:01:17ZengMDPI AGCrystals2073-43522018-06-018625610.3390/cryst8060256cryst8060256The Effects of Rare Earth Pr and Heat Treatment on the Wear Properties of AZ91 AlloyNing Li0Hong Yan1School of Mechanical Electrical Engineering, Nanchang University, Nanchang 330031, ChinaSchool of Mechanical Electrical Engineering, Nanchang University, Nanchang 330031, ChinaThis paper investigated the influences of Pr addition and heat treatment (T6) on the dry sliding wear behavior of AZ91 alloy. The wear rates and friction coefficients were measured by using a pin-on-disc tribometer under loads of 30, 60 and 90 N at dry sliding speeds of 100 rpm, over a sliding time of 15 min. The worn surfaces were examined using a scanning electron microscope and was analyzed with an energy dispersive spectrometer. The experimental results revealed that AZ91-1.0%Pr magnesium alloy exhibited lower wear rate and friction coefficient than the other investigated alloys. As the applied load increased, the wear rate and friction coefficient increased. Compared with the as-cast AZ91-1.0%Pr magnesium alloy, the hardness and wear resistance of the alloy after solution treatment were reduced, and through the subsequent aging, the hardness and wear resistance of the alloy were improved and the hardness was 101.1 HB (compared to as-cast AZ91 magnesium alloy, it increased by 45%). The AZ91-1.0%Pr with T6 magnesium alloy exhibited best wear resistance. Abrasion was dominant at load of 30 N, delamination was dominant at load of 60 N and plastic deformation was dominant at load of 90 N. Oxidation was observed at all loads.http://www.mdpi.com/2073-4352/8/6/256AZ91 alloyPrheat treatmentwear resistance |
| spellingShingle | Ning Li Hong Yan The Effects of Rare Earth Pr and Heat Treatment on the Wear Properties of AZ91 Alloy Crystals AZ91 alloy Pr heat treatment wear resistance |
| title | The Effects of Rare Earth Pr and Heat Treatment on the Wear Properties of AZ91 Alloy |
| title_full | The Effects of Rare Earth Pr and Heat Treatment on the Wear Properties of AZ91 Alloy |
| title_fullStr | The Effects of Rare Earth Pr and Heat Treatment on the Wear Properties of AZ91 Alloy |
| title_full_unstemmed | The Effects of Rare Earth Pr and Heat Treatment on the Wear Properties of AZ91 Alloy |
| title_short | The Effects of Rare Earth Pr and Heat Treatment on the Wear Properties of AZ91 Alloy |
| title_sort | effects of rare earth pr and heat treatment on the wear properties of az91 alloy |
| topic | AZ91 alloy Pr heat treatment wear resistance |
| url | http://www.mdpi.com/2073-4352/8/6/256 |
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