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Enhancing abrasive wear resistance in HP40Nb reformer steel through carburization.

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Title: Enhancing abrasive wear resistance in HP40Nb reformer steel through carburization.
Authors: Harshal Nemade, Leena1,2 (AUTHOR) leena.nemade@dbuniversity.ac.in, Robi, P. S.1 (AUTHOR), Biswas, Pankaj1 (AUTHOR)
Source: Australian Journal of Mechanical Engineering. Dec2025, Vol. 23 Issue 5, p909-919. 11p.
Subjects: Carburization, Wear resistance, Fretting corrosion, High strength steel, Heat treatment, Resource allocation, Materials analysis
Abstract: The investigation in this study focused on the abrasive wear behaviour of carburised reformer steel (HP40Nb). A tube section that had been exposed to temperatures below 650°C for 11 ½ years, where no microstructural deterioration was detected has been used for this investigation. Pack carburisation was done at 950°C temperature for 19.07 h on the HP40Nb pin samples in a muffle furnace, followed by air cooling. The surface morphology was observed by optical microscope, whereas topography was analysed using surface profilometer (Model: Form Talysurf; Make: Taylor Hobson Co.). The surface hardness as well as abrasive wear resistance of the as-received HP40Nb steel was compared with that of same material after carburisation heat treatment. Surface hardness of the material increased from 257.4 to 490.7 hV by heat treatment. The abrasive wear resistance of the HP40Nb steel surface also increased with the carburising heat treatment. It was expected that this study will give an insight to the possibility of further utilisation of this material for wear resistant applications thereby reduce the wastage of the material and enhance the resource utilisation. [ABSTRACT FROM AUTHOR]
Copyright of Australian Journal of Mechanical Engineering is the property of Taylor & Francis Ltd 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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  Data: Enhancing abrasive wear resistance in HP40Nb reformer steel through carburization.
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  Data: <searchLink fieldCode="AR" term="%22Harshal+Nemade%2C+Leena%22">Harshal Nemade, Leena</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> leena.nemade@dbuniversity.ac.in</i><br /><searchLink fieldCode="AR" term="%22Robi%2C+P%2E+S%2E%22">Robi, P. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Biswas%2C+Pankaj%22">Biswas, Pankaj</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Australian+Journal+of+Mechanical+Engineering%22">Australian Journal of Mechanical Engineering</searchLink>. Dec2025, Vol. 23 Issue 5, p909-919. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Carburization%22">Carburization</searchLink><br /><searchLink fieldCode="DE" term="%22Wear+resistance%22">Wear resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Fretting+corrosion%22">Fretting corrosion</searchLink><br /><searchLink fieldCode="DE" term="%22High+strength+steel%22">High strength steel</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Resource+allocation%22">Resource allocation</searchLink><br /><searchLink fieldCode="DE" term="%22Materials+analysis%22">Materials analysis</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: The investigation in this study focused on the abrasive wear behaviour of carburised reformer steel (HP40Nb). A tube section that had been exposed to temperatures below 650°C for 11 ½ years, where no microstructural deterioration was detected has been used for this investigation. Pack carburisation was done at 950°C temperature for 19.07 h on the HP40Nb pin samples in a muffle furnace, followed by air cooling. The surface morphology was observed by optical microscope, whereas topography was analysed using surface profilometer (Model: Form Talysurf; Make: Taylor Hobson Co.). The surface hardness as well as abrasive wear resistance of the as-received HP40Nb steel was compared with that of same material after carburisation heat treatment. Surface hardness of the material increased from 257.4 to 490.7 hV by heat treatment. The abrasive wear resistance of the HP40Nb steel surface also increased with the carburising heat treatment. It was expected that this study will give an insight to the possibility of further utilisation of this material for wear resistant applications thereby reduce the wastage of the material and enhance the resource utilisation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Australian Journal of Mechanical Engineering is the property of Taylor & Francis Ltd 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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/14484846.2025.2469378
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 909
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      – SubjectFull: Carburization
        Type: general
      – SubjectFull: Wear resistance
        Type: general
      – SubjectFull: Fretting corrosion
        Type: general
      – SubjectFull: High strength steel
        Type: general
      – SubjectFull: Heat treatment
        Type: general
      – SubjectFull: Resource allocation
        Type: general
      – SubjectFull: Materials analysis
        Type: general
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      – TitleFull: Enhancing abrasive wear resistance in HP40Nb reformer steel through carburization.
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            NameFull: Harshal Nemade, Leena
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            NameFull: Robi, P. S.
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            NameFull: Biswas, Pankaj
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          Dates:
            – D: 01
              M: 12
              Text: Dec2025
              Type: published
              Y: 2025
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            – TitleFull: Australian Journal of Mechanical Engineering
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