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Effect of Temperature on the Sliding Wear Behaviors of Carburized BG801 Bearing Steel.

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Title: Effect of Temperature on the Sliding Wear Behaviors of Carburized BG801 Bearing Steel.
Authors: Wang, Qiongdi1,2 (AUTHOR) 15236325684@163.com, Meng, Zhaojie1,2 (AUTHOR) qsyan2002@163.com, Qi, Shuangyan1,2,3 (AUTHOR), Luo, Chunyang1,3 (AUTHOR), Guo, Xiuhua2 (AUTHOR), Wang, Zhaodong1,3 (AUTHOR), Song, Kexing1 (AUTHOR)
Source: Materials (1996-1944). Mar2026, Vol. 19 Issue 5, p1034. 16p.
Subjects: Sliding wear, Carburization, Abrasion resistance, Wear resistance, Surface interactions, Bearing steel, Temperature effect
Abstract: Highlights: What are the main findings? Vacuum low-pressure carburizing is adopted to optimize the surface properties of BG801 bearing steel, overcoming the adaptability constraints of conventional carburizing processes and offering a novel technical route for improving its performance. Targeting the actual bearing service temperature range of 25~400 °C, this work systematically compares the tribological properties of carburized and uncarburized specimens and reveals the wear-resistant mechanism of the synergistic martensite–carbide layer, deepening the tribological theory of carburized bearing steel. Carburizing reduces the wear rate of BG801 by approximately 50% and markedly enhances its high-temperature wear resistance. What are the implications of the main findings? The research balances theoretical significance and engineering practicality, providing a feasible solution for the application and industrial promotion of BG801 in medium-to-high-temperature conditions. The wear-resistant mechanism of the synergistic martensite–carbide layer provides a theoretical basis for the design of high-temperature wear-resistant bearing steels. Vacuum low-pressure carburizing offers a promising approach to enhance the surface performance of other bearing steels under harsh service conditions. The wear performance of BG801 bearing steel under elevated-temperature conditions exerts a decisive influence on the service life and operational reliability of aero-engine bearings. In this study, the vacuum low-pressure carburizing heat treatment technology was employed to perform surface carburization on BG801 bearing steel, and the effect of carburization on the frictional properties of this steel was explored over a temperature range of 25 °C to 400 °C. The results indicate that with the increase in temperature, the friction coefficients of both the uncarburized specimens (hereinafter referred to as BG801-NC) and carburized specimens (hereinafter referred to as BG801-C) are maintained in the range of 0.5~0.8. Compared with BG801-NC, the wear rate of BG801-C is reduced by approximately 50% and exhibits an overall variation tendency of increasing first and then decreasing. At elevated temperatures, BG801-C presents superior wear resistance, which is attributed to the formation of a martensite–carbide composite strengthened layer on the surface of the bearing steel after carburizing treatment, a microstructure that remarkably enhances the surface hardness and wear resistance of the steel. Moreover, the carburized layer also diminishes the thickness of the plastic deformation layer during the friction process, thereby further suppressing the extension of wear damage. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
  Group: Ti
  Data: Effect of Temperature on the Sliding Wear Behaviors of Carburized BG801 Bearing Steel.
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Qiongdi%22">Wang, Qiongdi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> 15236325684@163.com</i><br /><searchLink fieldCode="AR" term="%22Meng%2C+Zhaojie%22">Meng, Zhaojie</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> qsyan2002@163.com</i><br /><searchLink fieldCode="AR" term="%22Qi%2C+Shuangyan%22">Qi, Shuangyan</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Luo%2C+Chunyang%22">Luo, Chunyang</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Xiuhua%22">Guo, Xiuhua</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Zhaodong%22">Wang, Zhaodong</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Kexing%22">Song, Kexing</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Mar2026, Vol. 19 Issue 5, p1034. 16p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Sliding+wear%22">Sliding wear</searchLink><br /><searchLink fieldCode="DE" term="%22Carburization%22">Carburization</searchLink><br /><searchLink fieldCode="DE" term="%22Abrasion+resistance%22">Abrasion resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Wear+resistance%22">Wear resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+interactions%22">Surface interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Bearing+steel%22">Bearing steel</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Highlights: What are the main findings? Vacuum low-pressure carburizing is adopted to optimize the surface properties of BG801 bearing steel, overcoming the adaptability constraints of conventional carburizing processes and offering a novel technical route for improving its performance. Targeting the actual bearing service temperature range of 25~400 °C, this work systematically compares the tribological properties of carburized and uncarburized specimens and reveals the wear-resistant mechanism of the synergistic martensite–carbide layer, deepening the tribological theory of carburized bearing steel. Carburizing reduces the wear rate of BG801 by approximately 50% and markedly enhances its high-temperature wear resistance. What are the implications of the main findings? The research balances theoretical significance and engineering practicality, providing a feasible solution for the application and industrial promotion of BG801 in medium-to-high-temperature conditions. The wear-resistant mechanism of the synergistic martensite–carbide layer provides a theoretical basis for the design of high-temperature wear-resistant bearing steels. Vacuum low-pressure carburizing offers a promising approach to enhance the surface performance of other bearing steels under harsh service conditions. The wear performance of BG801 bearing steel under elevated-temperature conditions exerts a decisive influence on the service life and operational reliability of aero-engine bearings. In this study, the vacuum low-pressure carburizing heat treatment technology was employed to perform surface carburization on BG801 bearing steel, and the effect of carburization on the frictional properties of this steel was explored over a temperature range of 25 °C to 400 °C. The results indicate that with the increase in temperature, the friction coefficients of both the uncarburized specimens (hereinafter referred to as BG801-NC) and carburized specimens (hereinafter referred to as BG801-C) are maintained in the range of 0.5~0.8. Compared with BG801-NC, the wear rate of BG801-C is reduced by approximately 50% and exhibits an overall variation tendency of increasing first and then decreasing. At elevated temperatures, BG801-C presents superior wear resistance, which is attributed to the formation of a martensite–carbide composite strengthened layer on the surface of the bearing steel after carburizing treatment, a microstructure that remarkably enhances the surface hardness and wear resistance of the steel. Moreover, the carburized layer also diminishes the thickness of the plastic deformation layer during the friction process, thereby further suppressing the extension of wear damage. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.3390/ma19051034
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1034
    Subjects:
      – SubjectFull: Sliding wear
        Type: general
      – SubjectFull: Carburization
        Type: general
      – SubjectFull: Abrasion resistance
        Type: general
      – SubjectFull: Wear resistance
        Type: general
      – SubjectFull: Surface interactions
        Type: general
      – SubjectFull: Bearing steel
        Type: general
      – SubjectFull: Temperature effect
        Type: general
    Titles:
      – TitleFull: Effect of Temperature on the Sliding Wear Behaviors of Carburized BG801 Bearing Steel.
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            NameFull: Wang, Qiongdi
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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