Nitriding of chromium-nickel alloys synthesized by laser melting

The effect of nitriding on the structure and hardness of chromium-nickel alloy obtained by selective laser melting has been studied. It has been shown that after nitriding a weakly developed ε-phase nitride zone with a thickness of about 10 μm and an internal nitriding zone with a thickness of more...

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Main Authors: Chudina O.V., Zorin V.A.
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/68/e3sconf_itse2023_06016.pdf
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author Chudina O.V.
Zorin V.A.
author_facet Chudina O.V.
Zorin V.A.
author_sort Chudina O.V.
collection DOAJ
description The effect of nitriding on the structure and hardness of chromium-nickel alloy obtained by selective laser melting has been studied. It has been shown that after nitriding a weakly developed ε-phase nitride zone with a thickness of about 10 μm and an internal nitriding zone with a thickness of more than 300 μm are formed on the surface of the alloy, which is twice as much as that of nitrided similar alloys obtained by the conventional method. The microhardness of the nitrided layer is 3500 MPa, this is 1.5 times higher than the hardness of the core, so nitriding of powder materials produced by additive technologies can be recommended for surface hardening of parts operating under conditions of wear and cyclic loads.
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spelling doaj.art-aa37a391ecbf442096ec836415edbca02023-10-17T08:49:32ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014310601610.1051/e3sconf/202343106016e3sconf_itse2023_06016Nitriding of chromium-nickel alloys synthesized by laser meltingChudina O.V.0Zorin V.A.1Moscow State Automobile and Road Technical University (MADI)Moscow State Automobile and Road Technical University (MADI)The effect of nitriding on the structure and hardness of chromium-nickel alloy obtained by selective laser melting has been studied. It has been shown that after nitriding a weakly developed ε-phase nitride zone with a thickness of about 10 μm and an internal nitriding zone with a thickness of more than 300 μm are formed on the surface of the alloy, which is twice as much as that of nitrided similar alloys obtained by the conventional method. The microhardness of the nitrided layer is 3500 MPa, this is 1.5 times higher than the hardness of the core, so nitriding of powder materials produced by additive technologies can be recommended for surface hardening of parts operating under conditions of wear and cyclic loads.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/68/e3sconf_itse2023_06016.pdf
spellingShingle Chudina O.V.
Zorin V.A.
Nitriding of chromium-nickel alloys synthesized by laser melting
E3S Web of Conferences
title Nitriding of chromium-nickel alloys synthesized by laser melting
title_full Nitriding of chromium-nickel alloys synthesized by laser melting
title_fullStr Nitriding of chromium-nickel alloys synthesized by laser melting
title_full_unstemmed Nitriding of chromium-nickel alloys synthesized by laser melting
title_short Nitriding of chromium-nickel alloys synthesized by laser melting
title_sort nitriding of chromium nickel alloys synthesized by laser melting
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/68/e3sconf_itse2023_06016.pdf
work_keys_str_mv AT chudinaov nitridingofchromiumnickelalloyssynthesizedbylasermelting
AT zorinva nitridingofchromiumnickelalloyssynthesizedbylasermelting