Influence of Nitrocarburizing on Increasing the Service Life of Elastic Elements of Direct Flow Valves

Krmela, J.; Hovorun, Tetiana Pavlivna; Berladir, Khrystyna Volodymyrivna; Artiukhov, Artem Yevhenovych; Kasian, S.

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Title	Influence of Nitrocarburizing on Increasing the Service Life of Elastic Elements of Direct Flow Valves
Authors	Krmela, J. Hovorun, Tetiana Pavlivna Berladir, Khrystyna Volodymyrivna Artiukhov, Artem Yevhenovych Kasian, S.
ORCID	http://orcid.org/0000-0002-9384-5250 http://orcid.org/0000-0002-4287-8204 http://orcid.org/0000-0003-1112-6891
Keywords	Direct-Flow Valve Plates Nitrocarburizing in Pastes Corrosion-Resistant Steel Carburizer Fatigue Strength
Type	Article
Date of Issue	2021
URI	https://essuir.sumdu.edu.ua/handle/123456789/87627
Publisher	Jan Evangelista Purkyne University in Usti nad Labem
License	Creative Commons Attribution 4.0 International License
Citation	Krmela J, Hovorun T, Berladir K, Artyukhov A, Kasian S. Influence of Nitrocarburizing on Increasing the Service Life of Elastic Elements of Direct Flow Valves. Manufacturing Technology. 2021;21(5):647-656. doi: 10.21062/mft.2021.071.
Abstract	The effect of the nitrocarburizing process in pastes with heating in a chamber furnace on the structure and strength characteristics of 09Cr15Ni8Al corrosion-resistant steel was investigated. The technology of thermochemical treatment was developed, which included nitrocarburizing in pastes with heating in a chamber furnace at different holding times. The thickness of the diffusion layer and its microhardness were determined after nitrocarburizing. To determine the efficiency and select the modes of thermochemical treatment, tests were carried out for the investigated steel's strength characteristics. The main feature of the structure of the diffusion layers of valve steels, obtained by nitrocarburizing in the nitrogencarbon paste, is the presence of an inhomogeneous layer with clearly distinguished zones.
Appears in Collections:	Наукові видання (ТеСЕТ)