STRUCTURE AND PROPERTIES OF THE SURFACE LAYER HIGH CHROME AUSTENITIC STEEL, SUBMITTED TO ION-PLASMA NITROGEN
| Autor: | Yu.F. Ivanov, E.A. Petrikova, S.V. Lykov, Yu.A. Denisova, O.S. Tolkachev |
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| Jazyk: | ruština |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, Iss 12, Pp 805-815 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2226-4442 2658-4360 |
| DOI: | 10.26456/pcascnn/2020.12.805 |
| Popis: | Ion nitriding is one of the most common methods of surface hardening of parts and tools. The purpose of this work is to identify and analyze the laws governing the transformation of the structure and properties of the surface layer of high-chromium stainless steel subjected to low-temperature nitriding in a low-pressure gas discharge plasma. It was found that the saturation with nitrogen ( 793 K, 3 hours) of austenitic high-chromium steel 20X23H18 in a low-pressure gas discharge plasma is accompanied by the formation of a plate type structure with alternating plates of austenite and iron nitride in a layer (55 — 60) μm thick (transverse plate sizes do not exceed 10 nm), the microhardness and wear resistance of which exceed the microhardness of the initial state by 6,5 times, wear resistance – more than 400 times. |
| Databáze: | Directory of Open Access Journals |
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