Long-term Annealing of NiCrAlY LENS Coating on 316L Steel

• Autorzy: Szymański Krzysztof K.

Identyfikatory

DOI

10.24425/afe.2022.143959

• Języki publikacji: EN

Abstrakty

EN

This article presents the results of a research on the behavior of NiCrAlY coating obtained by the LENS method on austenitic stainless steel type 316L under long-term annealing conditions at 1000°C for 25, 100 and 250 hours. The morphology of the NiCrAlY layer as a function of annealing time and temperature was characterized. The chemical composition and distribution of alloying elements were evaluated using scanning microscopy and micro-area chemical composition analysis. It was revealed that NiCrAlY coatings deposited by LENS method are characterized by good metallurgical quality. The long-term annealing of the NiCrAlY coating led to microstructural changes in the form of the disappearance of the original dendritic structure and the formation of a solid solution of nickel with chromium and a small amount of aluminum, as well as chromium α-Cr precipitates and Ni-Y-type phases. The effect of increasing iron concentration in the coating due to diffusion-to-core processes was also found.

Słowa kluczowe

EN

NiCrAlY; LENS; Laser Engineered Net Shaping; additive manufacturing; long-term annealing; microstructural stability

PL

NiCrAlY; LENS; produkcja dodatkowa; długotrwałe wyżarzanie; stabilność mikrostrukturalna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2022
• Tom: Vol. 22, iss. 4
• Strony: 116--120
• Opis fizyczny: Bibliogr. 10 poz., il., tab., wykr.

Twórcy

autor

Szymański Krzysztof K.

• Silesian Technical University of Technology, Faculty of Materials Science and Engineering, Katowice, Poland

Bibliografia

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• [7] Nowotny, S., Berger, L.-M. & Spatzier, J. (2014). Coatings by laser cladding. Comprehensive hard materials. Editors: V.K. Sarin. Elsevier. 507-525. DOI:10.1016/B978-0-08-096527-7.00018-0.
• [8] Moskal, G., Niemiec, D., Chmiela, B., Kałamarz, P., Durejko, T., Ziętala, M. & Czujko, T. (2020). Microstructural characterization of laser-cladded NiCrAlY coatings on Inconel 625 Ni-based superalloy and 316L stainless steel. Surface & Coatings Technology 387, 125317. DOI:10.1016/j.surfcoat.2019.125317.
• [9] Ma, K. Tang, F., & Schoenung, J.M. (2010). Investigation into the effects of Fe additions on the equilibrium phase compositions, phase fractions and phase stabilities in the Ni-Cr-Al system. Acta Materialia. 58(5), 1518-1529. DOI: 10.1016/j.actamat.2009.10.059.
• [10] Zhang, P., Li, X., Moverare, J. & Peng, R. (2019). The iron effect on oxidation and interdiffusion behaviour in MCrAlX coated Ni-base superalloys. Materials & Design. 166(15), 107599. DOI:10.1016/j.matdes.2019.107599.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)