Different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma-activated solid carbon precursor in a hot-wall reactor
This paper highlights the effects of plasma-assisted nitrocarburizing using graphite as an alternative solid carbon precursor in comparison to the state-of-the-art using methane as a gaseous carbon-containing precursor in an industrial-scale hot-wall reactor. In particular, the influence of afterglo...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424029302 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832595365484822528 |
|---|---|
| author | Saeed M. Jafarpour Anke Dalke Horst Biermann |
| author_facet | Saeed M. Jafarpour Anke Dalke Horst Biermann |
| author_sort | Saeed M. Jafarpour |
| collection | DOAJ |
| description | This paper highlights the effects of plasma-assisted nitrocarburizing using graphite as an alternative solid carbon precursor in comparison to the state-of-the-art using methane as a gaseous carbon-containing precursor in an industrial-scale hot-wall reactor. In particular, the influence of afterglow and direct glow conditions during short-time nitrocarburizing treatments performed at 440 °C in a N2–H2 plasma on the modifications of the resulting surface properties of AISI 316L austenitic stainless steel is studied comparatively. Therefore, the expanded austenite generated during each treatment is characterized by analysis of the cross-sectional microstructure, surface morphology, phase composition, elemental-depth profile, surface hardness and resistance to dry sliding wear and pitting corrosion. Additionally, the type and concentrations of the treatment-relevant gas species generated during each treatment are measured in real-time using laser absorption spectroscopy. The results revealed the potential of using a plasma-activated solid carbon precursor in a hot-wall reactor for an efficient nitrocarburizing treatment of AISI 316L. In addition, among different investigated PNC treatment conditions, the results of sample treated using plasma-activated graphite bars under afterglow condition provided not only an improved wear behaviour but also an enhanced pitting resistance while the uniform corrosion resistance fairly persevered as compared to the untreated steel. |
| format | Article |
| id | doaj-art-ec8251509eda4bca8d40f654ac377415 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-ec8251509eda4bca8d40f654ac3774152025-01-19T06:25:34ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013417911802Different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma-activated solid carbon precursor in a hot-wall reactorSaeed M. Jafarpour0Anke Dalke1Horst Biermann2Institute of Materials Engineering, Technische Universität Bergakademie Freiberg, Gustav-Zeuner-Str. 5, 09599, Freiberg, Germany; Center for Efficient High Temperature Processes and Materials Conversion, Technische Universität Bergakademie Freiberg, Winklerstraße 5, 09599, Freiberg, Germany; Corresponding author. Institute of Materials Engineering, Technische Universität Bergakademie Freiberg, Gustav-Zeuner-Str. 5, 09599, Freiberg, Germany.Institute of Materials Engineering, Technische Universität Bergakademie Freiberg, Gustav-Zeuner-Str. 5, 09599, Freiberg, Germany; Center for Efficient High Temperature Processes and Materials Conversion, Technische Universität Bergakademie Freiberg, Winklerstraße 5, 09599, Freiberg, GermanyInstitute of Materials Engineering, Technische Universität Bergakademie Freiberg, Gustav-Zeuner-Str. 5, 09599, Freiberg, Germany; Center for Efficient High Temperature Processes and Materials Conversion, Technische Universität Bergakademie Freiberg, Winklerstraße 5, 09599, Freiberg, GermanyThis paper highlights the effects of plasma-assisted nitrocarburizing using graphite as an alternative solid carbon precursor in comparison to the state-of-the-art using methane as a gaseous carbon-containing precursor in an industrial-scale hot-wall reactor. In particular, the influence of afterglow and direct glow conditions during short-time nitrocarburizing treatments performed at 440 °C in a N2–H2 plasma on the modifications of the resulting surface properties of AISI 316L austenitic stainless steel is studied comparatively. Therefore, the expanded austenite generated during each treatment is characterized by analysis of the cross-sectional microstructure, surface morphology, phase composition, elemental-depth profile, surface hardness and resistance to dry sliding wear and pitting corrosion. Additionally, the type and concentrations of the treatment-relevant gas species generated during each treatment are measured in real-time using laser absorption spectroscopy. The results revealed the potential of using a plasma-activated solid carbon precursor in a hot-wall reactor for an efficient nitrocarburizing treatment of AISI 316L. In addition, among different investigated PNC treatment conditions, the results of sample treated using plasma-activated graphite bars under afterglow condition provided not only an improved wear behaviour but also an enhanced pitting resistance while the uniform corrosion resistance fairly persevered as compared to the untreated steel.http://www.sciencedirect.com/science/article/pii/S2238785424029302Plasma nitrocarburizingExpanded austeniteSolid carbon precursorAfterglowHot-wall reactorWear and corrosion resistance |
| spellingShingle | Saeed M. Jafarpour Anke Dalke Horst Biermann Different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma-activated solid carbon precursor in a hot-wall reactor Journal of Materials Research and Technology Plasma nitrocarburizing Expanded austenite Solid carbon precursor Afterglow Hot-wall reactor Wear and corrosion resistance |
| title | Different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma-activated solid carbon precursor in a hot-wall reactor |
| title_full | Different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma-activated solid carbon precursor in a hot-wall reactor |
| title_fullStr | Different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma-activated solid carbon precursor in a hot-wall reactor |
| title_full_unstemmed | Different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma-activated solid carbon precursor in a hot-wall reactor |
| title_short | Different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma-activated solid carbon precursor in a hot-wall reactor |
| title_sort | different approaches for plasma nitrocarburizing of austenitic stainless steel using a plasma activated solid carbon precursor in a hot wall reactor |
| topic | Plasma nitrocarburizing Expanded austenite Solid carbon precursor Afterglow Hot-wall reactor Wear and corrosion resistance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424029302 |
| work_keys_str_mv | AT saeedmjafarpour differentapproachesforplasmanitrocarburizingofausteniticstainlesssteelusingaplasmaactivatedsolidcarbonprecursorinahotwallreactor AT ankedalke differentapproachesforplasmanitrocarburizingofausteniticstainlesssteelusingaplasmaactivatedsolidcarbonprecursorinahotwallreactor AT horstbiermann differentapproachesforplasmanitrocarburizingofausteniticstainlesssteelusingaplasmaactivatedsolidcarbonprecursorinahotwallreactor |