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. |
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| 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] |
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| Database: | Engineering Source |
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| 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] |
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| ISSN: | 14484846 |
| DOI: | 10.1080/14484846.2025.2469378 |
