The Influence of High-Pressure Gas Nitriding on the Properties of Martensitic Steels

The Influence of High-Pressure Gas Nitriding on the Properties of Martensitic Steels

The influence of high-pressure gas nitriding on the structure and properties of martensitic steels VKS-5, VKS-7, 20Kh3N3MFB, and 25Kh5M is investigated. It is shown that the high-pressure nitriding increases the thickness of the diffusion zone at substantial reduction of the process time as compared...

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Veröffentlicht in:Metal science and heat treatment 2017-11, Vol.59 (7-8), p.524-528
Hauptverfasser: Alekseeva, M. S., Gress, M. A., Scherbakov, S. P., Gerasimov, S. A., Kuksenova, L. I.
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Building materials
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Cooling rate
Diffusion layers
Diffusion rate
Engineering Thermodynamics
Heat and Mass Transfer
Martensitic stainless steels
Materials Science
Metallic Materials
Nitriding
Steel
Thermochemical Treatment
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Beschreibung
Zusammenfassung:The influence of high-pressure gas nitriding on the structure and properties of martensitic steels VKS-5, VKS-7, 20Kh3N3MFB, and 25Kh5M is investigated. It is shown that the high-pressure nitriding increases the thickness of the diffusion zone at substantial reduction of the process time as compared to the traditional gas-phase nitriding. Increase of the post-treatment cooling rate above 30 K/min favors the formation of diffusion layers with greater hardness.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-017-0183-0