Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel Steel
A GPM-30 fatigue machine was used to investigate the influence of surface ultrasonic rolling (SURT) on the rolling contact fatigue (RCF) life of D2 wheel steel. The experimental results present that the RCF life of the grinding processing sample is 4.1 × 10<sup>5</sup> cycles. During the...
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MDPI AG
2020-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/23/5438 |
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| author | Pengtao Liu Zilong Lin Chunpeng Liu Xiujuan Zhao Ruiming Ren |
| author_facet | Pengtao Liu Zilong Lin Chunpeng Liu Xiujuan Zhao Ruiming Ren |
| author_sort | Pengtao Liu |
| collection | DOAJ |
| description | A GPM-30 fatigue machine was used to investigate the influence of surface ultrasonic rolling (SURT) on the rolling contact fatigue (RCF) life of D2 wheel steel. The experimental results present that the RCF life of the grinding processing sample is 4.1 × 10<sup>5</sup> cycles. During the RCF process, the flaking of the fine grain layer and high surface roughness of the grinding processing sample cause the production of RCF cracks. When the samples are treated by SURT with 0.2 MPa and 0.4 MPa, the RCF life is 9.2 × 10<sup>5</sup> cycles and 9.6 × 10<sup>5</sup> cycles, respectively. After SURT, the surface roughness of the samples is reduced, and a certain thickness of gradient-plastic-deformation layer and a residual-compressive-stress layer are produced. These factors lead to the improvement of the RCF property. However, when the static pressure increases to 0.6 MPa during SURT, the RCF life of the sample is reduced during RCF testing. The micro-cracks, which are formed during SURT, become the crack source and cause the formation of RCF cracks, decreasing of the RCF life. |
| first_indexed | 2024-03-10T14:27:12Z |
| format | Article |
| id | doaj.art-77c93169c25a42cf9935da47cfe02fd4 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T14:27:12Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-77c93169c25a42cf9935da47cfe02fd42023-11-20T22:53:53ZengMDPI AGMaterials1996-19442020-11-011323543810.3390/ma13235438Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel SteelPengtao Liu0Zilong Lin1Chunpeng Liu2Xiujuan Zhao3Ruiming Ren4School of Material Science and Engineering, Dalian JiaoTong University, Dalian 116028, ChinaSchool of Material Science and Engineering, Dalian JiaoTong University, Dalian 116028, ChinaSchool of Material Science and Engineering, Dalian JiaoTong University, Dalian 116028, ChinaSchool of Material Science and Engineering, Dalian JiaoTong University, Dalian 116028, ChinaSchool of Material Science and Engineering, Dalian JiaoTong University, Dalian 116028, ChinaA GPM-30 fatigue machine was used to investigate the influence of surface ultrasonic rolling (SURT) on the rolling contact fatigue (RCF) life of D2 wheel steel. The experimental results present that the RCF life of the grinding processing sample is 4.1 × 10<sup>5</sup> cycles. During the RCF process, the flaking of the fine grain layer and high surface roughness of the grinding processing sample cause the production of RCF cracks. When the samples are treated by SURT with 0.2 MPa and 0.4 MPa, the RCF life is 9.2 × 10<sup>5</sup> cycles and 9.6 × 10<sup>5</sup> cycles, respectively. After SURT, the surface roughness of the samples is reduced, and a certain thickness of gradient-plastic-deformation layer and a residual-compressive-stress layer are produced. These factors lead to the improvement of the RCF property. However, when the static pressure increases to 0.6 MPa during SURT, the RCF life of the sample is reduced during RCF testing. The micro-cracks, which are formed during SURT, become the crack source and cause the formation of RCF cracks, decreasing of the RCF life.https://www.mdpi.com/1996-1944/13/23/5438surface ultrasonic rolling treatmentD2 wheel steelrolling contact fatigue lifesurface microstructure |
| spellingShingle | Pengtao Liu Zilong Lin Chunpeng Liu Xiujuan Zhao Ruiming Ren Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel Steel Materials surface ultrasonic rolling treatment D2 wheel steel rolling contact fatigue life surface microstructure |
| title | Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel Steel |
| title_full | Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel Steel |
| title_fullStr | Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel Steel |
| title_full_unstemmed | Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel Steel |
| title_short | Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel Steel |
| title_sort | effect of surface ultrasonic rolling treatment on rolling contact fatigue life of d2 wheel steel |
| topic | surface ultrasonic rolling treatment D2 wheel steel rolling contact fatigue life surface microstructure |
| url | https://www.mdpi.com/1996-1944/13/23/5438 |
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