Wear mechanism transforming of ultrafine-grained pure titanium by multi-axial forging and low-temperature annealing
The effect of microstructure and mechanical properties of submicro grained commercial pure titanium (CP–Ti) on the wear mechanism is still unclear. In the present work, CP-Ti samples were subjected to multi-axial forging (MAF) and low-temperature annealing treatment to prepare ultrafine-grained (UFG...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423032933 |
| _version_ | 1797338270905925632 |
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| author | Rongyou Chen Shubo Guo Xiaolian Zhao Yutang Yin Sijie Du Yang Song Wei Liang Aoke Jiang Yiting He Chunhua Wei |
| author_facet | Rongyou Chen Shubo Guo Xiaolian Zhao Yutang Yin Sijie Du Yang Song Wei Liang Aoke Jiang Yiting He Chunhua Wei |
| author_sort | Rongyou Chen |
| collection | DOAJ |
| description | The effect of microstructure and mechanical properties of submicro grained commercial pure titanium (CP–Ti) on the wear mechanism is still unclear. In the present work, CP-Ti samples were subjected to multi-axial forging (MAF) and low-temperature annealing treatment to prepare ultrafine-grained (UFG) material. The mechanical properties, microstructure, and tribological characterization between coarse-grained (CG) sample and UFG samples were comparatively studied. The results showed that the MAF sample could reach a grain size of 165 nm, while its grains coarsened slightly after low-temperature annealing. The MAF sample had the highest strength and hardness and the lowest coefficient of friction, but only a 7.3 % decrease in wear rate compared to the CG sample. The 400 °C annealed MAF sample possessed a good combination of tensile strength (814 MPa) and elongation (18.6 %), resulting in the lowest wear rate of 16.8 × 10−5mm3/(N∙m). The dominated wear mechanisms of the CG sample, MAF sample and 500 °C annealed MAF sample were abrasive wear, adhesive wear and delamination wear, while the primary mechanism of the 400 °C annealed MAF sample was abrasive wear and adhesive wear. It was found that the wear mechanism transforming, higher hardness and sufficient work hardening could be responsible for lower wear rate of the 400 °C annealed MAF sample. The 400 °C annealed MAF sample showed a thinner and more homogeneous deformation layer near the worn surface, and its thickness of deformation layer was about 8 μm. |
| first_indexed | 2024-03-08T09:28:37Z |
| format | Article |
| id | doaj.art-242c037accd04086b554864c7766080d |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-08T09:28:37Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-242c037accd04086b554864c7766080d2024-01-31T05:44:12ZengElsevierJournal of Materials Research and Technology2238-78542024-01-012829802989Wear mechanism transforming of ultrafine-grained pure titanium by multi-axial forging and low-temperature annealingRongyou Chen0Shubo Guo1Xiaolian Zhao2Yutang Yin3Sijie Du4Yang Song5Wei Liang6Aoke Jiang7Yiting He8Chunhua Wei9School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures. Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures. Guangxi University, Nanning, 530004, China; Corresponding author. School of Resources, Environment and Materials, Guangxi University, P.O. Box: 530004, Nanning, China.The effect of microstructure and mechanical properties of submicro grained commercial pure titanium (CP–Ti) on the wear mechanism is still unclear. In the present work, CP-Ti samples were subjected to multi-axial forging (MAF) and low-temperature annealing treatment to prepare ultrafine-grained (UFG) material. The mechanical properties, microstructure, and tribological characterization between coarse-grained (CG) sample and UFG samples were comparatively studied. The results showed that the MAF sample could reach a grain size of 165 nm, while its grains coarsened slightly after low-temperature annealing. The MAF sample had the highest strength and hardness and the lowest coefficient of friction, but only a 7.3 % decrease in wear rate compared to the CG sample. The 400 °C annealed MAF sample possessed a good combination of tensile strength (814 MPa) and elongation (18.6 %), resulting in the lowest wear rate of 16.8 × 10−5mm3/(N∙m). The dominated wear mechanisms of the CG sample, MAF sample and 500 °C annealed MAF sample were abrasive wear, adhesive wear and delamination wear, while the primary mechanism of the 400 °C annealed MAF sample was abrasive wear and adhesive wear. It was found that the wear mechanism transforming, higher hardness and sufficient work hardening could be responsible for lower wear rate of the 400 °C annealed MAF sample. The 400 °C annealed MAF sample showed a thinner and more homogeneous deformation layer near the worn surface, and its thickness of deformation layer was about 8 μm.http://www.sciencedirect.com/science/article/pii/S2238785423032933Pure titaniumMulti-axial forgingWear mechanismUltrafine grainMicrostructure |
| spellingShingle | Rongyou Chen Shubo Guo Xiaolian Zhao Yutang Yin Sijie Du Yang Song Wei Liang Aoke Jiang Yiting He Chunhua Wei Wear mechanism transforming of ultrafine-grained pure titanium by multi-axial forging and low-temperature annealing Journal of Materials Research and Technology Pure titanium Multi-axial forging Wear mechanism Ultrafine grain Microstructure |
| title | Wear mechanism transforming of ultrafine-grained pure titanium by multi-axial forging and low-temperature annealing |
| title_full | Wear mechanism transforming of ultrafine-grained pure titanium by multi-axial forging and low-temperature annealing |
| title_fullStr | Wear mechanism transforming of ultrafine-grained pure titanium by multi-axial forging and low-temperature annealing |
| title_full_unstemmed | Wear mechanism transforming of ultrafine-grained pure titanium by multi-axial forging and low-temperature annealing |
| title_short | Wear mechanism transforming of ultrafine-grained pure titanium by multi-axial forging and low-temperature annealing |
| title_sort | wear mechanism transforming of ultrafine grained pure titanium by multi axial forging and low temperature annealing |
| topic | Pure titanium Multi-axial forging Wear mechanism Ultrafine grain Microstructure |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423032933 |
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