Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different Loads
The mild–severe wear transition of aluminum alloys is considered evidence that the wear changes from a stable state to an unstable state, which is of great importance in engineering applications. The purpose of this study is to evaluate the mild–severe wear transition of the 2195 Al–Li alloy for dif...
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MDPI AG
2023-04-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/4/698 |
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| author | Qingqiang Chen Yalei Yu Guanjie Ma Xingzi Sun Laixiao Lu |
| author_facet | Qingqiang Chen Yalei Yu Guanjie Ma Xingzi Sun Laixiao Lu |
| author_sort | Qingqiang Chen |
| collection | DOAJ |
| description | The mild–severe wear transition of aluminum alloys is considered evidence that the wear changes from a stable state to an unstable state, which is of great importance in engineering applications. The purpose of this study is to evaluate the mild–severe wear transition of the 2195 Al–Li alloy for different loads and to elucidate the causes behind it. To this end, dry sliding tribometric tests were carried out by varying the normal load from 2 to 40 N at room temperature. The results show that the change in wear rate can be divided into three distinct stages, including weak growth at low load (2–4 N), rapidly increased growth at medium load (8–16 N), and gradually increased growth at high load (32–40 N). The transition from mild to severe wear is observed at loads ranging from 4 to 8 N. Characterization of the worn surface of the Al–Li alloy via scanning electron microscopy shows that abrasion and oxidation are the dominant wear phenomena in the mild wear regime. On the other hand, delamination, adhesion, and severe plastic deformation become dominant in the severe wear regime. The reason for the occurrence of the transition is the tribo-induced plastic deformation of the substrate. |
| first_indexed | 2024-03-11T05:07:14Z |
| format | Article |
| id | doaj.art-a84e911a76544f84b5f8f9594ffd5ec4 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T05:07:14Z |
| publishDate | 2023-04-01 |
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| series | Crystals |
| spelling | doaj.art-a84e911a76544f84b5f8f9594ffd5ec42023-11-17T18:52:12ZengMDPI AGCrystals2073-43522023-04-0113469810.3390/cryst13040698Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different LoadsQingqiang Chen0Yalei Yu1Guanjie Ma2Xingzi Sun3Laixiao Lu4Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaThe mild–severe wear transition of aluminum alloys is considered evidence that the wear changes from a stable state to an unstable state, which is of great importance in engineering applications. The purpose of this study is to evaluate the mild–severe wear transition of the 2195 Al–Li alloy for different loads and to elucidate the causes behind it. To this end, dry sliding tribometric tests were carried out by varying the normal load from 2 to 40 N at room temperature. The results show that the change in wear rate can be divided into three distinct stages, including weak growth at low load (2–4 N), rapidly increased growth at medium load (8–16 N), and gradually increased growth at high load (32–40 N). The transition from mild to severe wear is observed at loads ranging from 4 to 8 N. Characterization of the worn surface of the Al–Li alloy via scanning electron microscopy shows that abrasion and oxidation are the dominant wear phenomena in the mild wear regime. On the other hand, delamination, adhesion, and severe plastic deformation become dominant in the severe wear regime. The reason for the occurrence of the transition is the tribo-induced plastic deformation of the substrate.https://www.mdpi.com/2073-4352/13/4/698Al–Litribological behaviorspray formingwear phenomenon |
| spellingShingle | Qingqiang Chen Yalei Yu Guanjie Ma Xingzi Sun Laixiao Lu Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different Loads Crystals Al–Li tribological behavior spray forming wear phenomenon |
| title | Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different Loads |
| title_full | Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different Loads |
| title_fullStr | Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different Loads |
| title_full_unstemmed | Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different Loads |
| title_short | Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different Loads |
| title_sort | dry sliding wear behavior and mild severe wear transition of the aa2195 t6 alloy under different loads |
| topic | Al–Li tribological behavior spray forming wear phenomenon |
| url | https://www.mdpi.com/2073-4352/13/4/698 |
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