| Issue |
MATEC Web Conf.
Volume 346, 2021
International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2021)
|
|
|---|---|---|
| Article Number | 02035 | |
| Number of page(s) | 5 | |
| Section | Materials Science | |
| DOI | https://doi.org/10.1051/matecconf/202134602035 | |
| Published online | 26 October 2021 | |
Surface Strengthening of High-Alloyed Martensitic Steel by Staged Nitriding
1 Moscow Aviation Institute (National Research University), 125993 Volokolamskoe shosse, 4, Moscow, Russia
2 MADI University, Technology of structural materials department, 125319 Leningradskiy prospect 64 Moscow, Russia
* Corresponding author: petrova_madi@mail.ru
Gas nitriding processes with cyclical rotation of ammonia and ammonia/air atmospheres are suggested for surface strengthening of martensitic Cr-Ni-W-Mo-V steel. One-, two-, and three-staged processes were studied differing by gas atmospheres at the final stage of processes. Microstructure and phase composition of received diffusion layers were examined. Results of microhardness, wear and impact toughness tests are discussed in correspondence with the layers structure.
© The Authors, published by EDP Sciences, 2021
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