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Naslov:Improving the surface properties of additive-manufactured Inconel 625 by plasma nitriding
Avtorji:ID Skobir Balantič, Danijela Anica (Avtor)
ID Donik, Črtomir (Avtor)
ID Podgornik, Bojan (Avtor)
ID Kocijan, Aleksandra (Avtor)
ID Godec, Matjaž (Avtor)
Datoteke:.pdf PDF - Predstavitvena datoteka, prenos (7,98 MB)
MD5: B1A7FFCC336D1533A5BD70463637D21D
 
URL URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S0257897222010519?via%3Dihub
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo IMT - Inštitut za kovinske materiale in tehnologije
Povzetek:As a surface-hardening technique, plasma nitriding is a common procedure for improving the properties of conventional Ni-based alloys. The diffusion of nitrogen hardens a layer on the surface of the alloy, leading to better wear resistance and a higher coefficient of friction, as well as a higher surface hardness. This study reports the effect of plasma nitriding on additive-manufactured (AM) Inconel 625 (IN625) compared to its conventional manufactured and nitrided counterparts. The samples produced with the laser powder-bed fusion (LPBF) process were subsequently plasma nitrided in the as-built condition, stress-relief annealed at 870 °C and solution treated at 1050 °C. The plasma nitridings were carried out at 430 °C and 500 °C for 15 h. The growth kinetics of the nitride layer of the AM samples depends on the prior heat treatments and is faster in the as-built state due to the specific cellular structure. The lower nitriding temperature leads to the formation of expanded austenite in the nitride layer, while at the higher nitriding temperature, the expanded austenite decomposes and CrN precipitation occurs. The XRD and SEM analyses confirmed the presence of two layers: the surface layer and the diffusion layer beneath. The lower nitriding temperature caused the formation of expanded austenite or a combination of expanded austenite and CrN. The higher nitriding temperature led to the decomposition of the expanded austenite and to the formation/precipitation of CrN. The higher nitriding temperature also decreased the corrosion resistance slightly due to the increased number of precipitated Cr-nitrides. On the other hand, the wear resistance was significantly improved after plasma nitriding and was much less influenced by the nitriding temperature.
Ključne besede:additive manufacturing, powder-bed fusion, plasma nitriding, expanded austenite, wear and corrosion resistance, Ni-based alloy
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:07.12.2022
Založnik:Elsevier
Leto izida:2023
Št. strani:str. 1-11
Številčenje:Vol. 452, [article no.] ǂ129130
Izvor:Nizozemska
PID:20.500.12556/DiRROS-18036 Novo okno
UDK:621.8:539
ISSN pri članku:0257-8972
DOI:10.1016/j.surfcoat.2022.129130 Novo okno
COBISS.SI-ID:133032451 Novo okno
Avtorske pravice:© 2022 The Authors. Published by Elsevier B.V.
Datum objave v DiRROS:31.01.2024
Število ogledov:871
Število prenosov:339
Metapodatki:XML DC-XML DC-RDF
:
SKOBIR BALANTIČ, Danijela Anica, DONIK, Črtomir, PODGORNIK, Bojan, KOCIJAN, Aleksandra in GODEC, Matjaž, 2023, Improving the surface properties of additive-manufactured Inconel 625 by plasma nitriding. Surface & coatings technology [na spletu]. 2023. Vol. 452, no. 129130, p. 1–11. [Dostopano 19 marec 2025]. DOI 10.1016/j.surfcoat.2022.129130. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=18036
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Gradivo je del revije

Naslov:Surface & coatings technology
Skrajšan naslov:Surf. coat. technol.
Založnik:Elsevier Sequoia
ISSN:0257-8972
COBISS.SI-ID:3084815 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:L2-2613
Naslov:Novi kompozitni materiali s kovinsko matrico, ojačano z nanodelci ter izdelani s selektivnim laserskim taljenjem za aplikacije v orodjarstvu
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0132
Naslov:Fizika in kemija površin kovinskih materialov
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0050
Naslov:Kovinski materiali in tehnologije

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:07.12.2022
Vezano na:Text and Data Mining valid from 2023-01-01 Version of Record valid from 2022-12-07

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