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Study on the Relation Between Polished Surface Integrity and Fatigue Behavior of Low-Alloy Steel.

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Title: Study on the Relation Between Polished Surface Integrity and Fatigue Behavior of Low-Alloy Steel.
Authors: Wang, Yong1,2,3 (AUTHOR), Xiao, Yang1,2 (AUTHOR), Wang, Dongfei3,4 (AUTHOR) wdf2866@126.com, Wang, Xibin2,4 (AUTHOR), Liu, Zhibing1,2 (AUTHOR), Xu, Kun1,2 (AUTHOR)
Source: Materials (1996-1944). Apr2026, Vol. 19 Issue 7, p1284. 21p.
Subjects: Low alloy steel, Surface roughness, Residual stresses, Alloy fatigue, Couplings (Gearing), Surface finishing
Abstract: The fatigue pitting model based on the minimum oil film thickness does not consider the influence of tooth surface roughness and residual stress, which limits the accuracy of predicting the fatigue pitting of the model. Micro pitting often initiates on the surface due to large external loads. Therefore, it is urgent to propose a new-micro pitting bearing capacity model based on gear surface integrity parameters. This paper studied a new fatigue pitting model considering surface integrity subjected to polishing processes. This model thoroughly analyzes the effects of teeth surface roughness dynamically on the oil film pressure and explores the complex mechanism of residual stress in the near-surface stress field of the gear teeth. The new model can more accurately simulate the micro-pitting bearing capacity under actual operating conditions by introducing teeth surface roughness and residual stress, and the prediction reliability of gear steel is greatly improved. This improved model provides a solid theoretical basis and technical support for optimizing gear transmission systems, accurate diagnosis of micro-pitting defects, and in-depth theoretical research in related fields. [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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Header DbId: egs
DbLabel: Engineering Source
An: 192958646
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Study on the Relation Between Polished Surface Integrity and Fatigue Behavior of Low-Alloy Steel.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Yong%22">Wang, Yong</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xiao%2C+Yang%22">Xiao, Yang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Dongfei%22">Wang, Dongfei</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<i> wdf2866@126.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Xibin%22">Wang, Xibin</searchLink><relatesTo>2,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Zhibing%22">Liu, Zhibing</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Kun%22">Xu, Kun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Apr2026, Vol. 19 Issue 7, p1284. 21p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Low+alloy+steel%22">Low alloy steel</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+roughness%22">Surface roughness</searchLink><br /><searchLink fieldCode="DE" term="%22Residual+stresses%22">Residual stresses</searchLink><br /><searchLink fieldCode="DE" term="%22Alloy+fatigue%22">Alloy fatigue</searchLink><br /><searchLink fieldCode="DE" term="%22Couplings+%28Gearing%29%22">Couplings (Gearing)</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+finishing%22">Surface finishing</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The fatigue pitting model based on the minimum oil film thickness does not consider the influence of tooth surface roughness and residual stress, which limits the accuracy of predicting the fatigue pitting of the model. Micro pitting often initiates on the surface due to large external loads. Therefore, it is urgent to propose a new-micro pitting bearing capacity model based on gear surface integrity parameters. This paper studied a new fatigue pitting model considering surface integrity subjected to polishing processes. This model thoroughly analyzes the effects of teeth surface roughness dynamically on the oil film pressure and explores the complex mechanism of residual stress in the near-surface stress field of the gear teeth. The new model can more accurately simulate the micro-pitting bearing capacity under actual operating conditions by introducing teeth surface roughness and residual stress, and the prediction reliability of gear steel is greatly improved. This improved model provides a solid theoretical basis and technical support for optimizing gear transmission systems, accurate diagnosis of micro-pitting defects, and in-depth theoretical research in related fields. [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/ma19071284
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 21
        StartPage: 1284
    Subjects:
      – SubjectFull: Low alloy steel
        Type: general
      – SubjectFull: Surface roughness
        Type: general
      – SubjectFull: Residual stresses
        Type: general
      – SubjectFull: Alloy fatigue
        Type: general
      – SubjectFull: Couplings (Gearing)
        Type: general
      – SubjectFull: Surface finishing
        Type: general
    Titles:
      – TitleFull: Study on the Relation Between Polished Surface Integrity and Fatigue Behavior of Low-Alloy Steel.
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      – PersonEntity:
          Name:
            NameFull: Wang, Yong
      – PersonEntity:
          Name:
            NameFull: Xiao, Yang
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            NameFull: Wang, Dongfei
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            NameFull: Wang, Xibin
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            NameFull: Liu, Zhibing
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            NameFull: Xu, Kun
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            – D: 01
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
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              Value: 19
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              Value: 7
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            – TitleFull: Materials (1996-1944)
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