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Anti-wear properties on 20CrMnTi steel surfaces with biomimetic non-smooth units

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Abstract

In order to gain a sufficient wear resistance for applications, the biomimetic non-smooth units in concave were fabricated on the surfaces of 20CrMnTi steel using a biomimetic laser remelting technology. The diameter and distribution of the concaves were optimized using orthogonal experiment. The microstructures of the biomimetic non-smooth units were examined. The anti-wear behaviors were investigated by the rolling wear test with lubricant. The results of wear tests indicated that the biomimetic surfaces exhibit a higher anti-wear ability than the smooth surfaces. The biomimetic surface with concaves of 250 μm in diameter and transverse distance of 270 μm and longitudinal distance of 400 μm exhibits the best anti-wear property. The enhancement of wear resistance can be mainly attributed to the action of biomimetic non-smooth units and the super fined microstructure and hardness in the biomimetic unit zones.

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Authors and Affiliations

  1. College of Mechanical Science and Engineering, Nanling Campus, Jilin University, Changchun, 130025, China

    Yong Hu & MingXu Xu

  2. Key Laboratory of Bionic Engineering, Ministry of Education, College of Biology and Agriculture Engineering, Nanling Campus, Jilin University, Changchun, 130025, China

    Yong Hu, ZhiWu Han & ZhiHui Zhang

Authors
  1. Yong Hu
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  2. ZhiWu Han
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  3. MingXu Xu
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  4. ZhiHui Zhang
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Correspondence to ZhiWu Han.

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Hu, Y., Han, Z., Xu, M. et al. Anti-wear properties on 20CrMnTi steel surfaces with biomimetic non-smooth units. Sci. China Technol. Sci. 53, 2920–2924 (2010). https://doi.org/10.1007/s11431-010-4130-1

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  • DOI: https://doi.org/10.1007/s11431-010-4130-1

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