Analysis of direct metal laser sintering - DMLS and heat treatment influence on the Inconel 713C nickel alloy structure

• Autorzy: Ciftci Jakub , Sitek Ryszard , Mizera Jarosław

Identyfikatory

DOI

10.26628/wtr.v93i3.1142

Warianty tytułu

PL

Wpływ laserowego przetapiania w złożu proszku - DMLS i obróbki cieplnej na strukturę stopu niklu Inconel 713C

• Języki publikacji: EN

Abstrakty

EN

The group of nickel-based superalloys produced in the DMLS (Direct Metal Laser Sintering) process is limited to materials, which produced conventionally do not have properties to allow to use them for rotating components of aircraft engines. This work attempts to optimize the technological parameters of the DMLS process for the Inconel 713C nickel superalloy. A heat treatment was performed for selected samples to investigate the effect on the morphology of the Ni3Al phase. The microstructure analysis and hardness tests were carried out. The material after the DMLS process was characterized by the presence of much smaller dendrites than the cast material and exceeded its hardness. Additionally, for the tested variants of heat treatment, the material was characterized by smaller sizes of the Ni3Al phase by more than half. In order to ensure the stability of the microstructure, further optimization of the dedicated heat treatment after the DMLS process is required, as the standard heat treatment for Inconel 713C cast nickel superalloy does not fully recrystallize the material.

PL

Grupa nadstopów niklu wytwarzanych w procesie DMLS (ang. Direct Metal Laser Sintering) ogranicza się do materiałów, które wytwarzane konwencjonalnie nie posiadają właściwości, pozwalających zastosować je na elementy wirujące silników lotniczych. W pracy podjęto próbę optymalizacji parametrów technologicznych procesu DMLS dla nadstopu niklu Inconel 713C. Dla wybranych próbek przeprowadzono obróbkę cieplną w celu zbadania jej wpływu na morfologię fazy Ni3Al. Przeprowadzono analizę mikrostruktury oraz badania twardości. Materiał po procesie DMLS charakteryzował się obecnością znacznie mniejszych dendrytów niż materiał odlewany oraz przewyższał jego twardość. Dodatkowo dla zbadanych wariantów obróbki cieplnej materiał charakteryzował się mniejszymi rozmiarami fazy Ni3Al o ponad połowę. W celu zapewnienia stabilności mikrostruktury, wymagana jest dalsza optymalizacja obróbki cieplnej dedykowanej po procesie DMLS, ponieważ standardowa obróbka cieplna dla odlewanego nadstopu niklu Inconel 713C nie zapewnia pełnej rekrystalizacji materiału.

Słowa kluczowe

EN

Inconel 713C; heat treatment; direct metal laser sintering; EOS M100; nickel alloy; structure

PL

Inconel 713C; obróbka cieplna; spiekanie laserowe metali bezpośrednie; EOS M100; stop niklu; struktura

• Wydawca: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
• Czasopismo: Welding Technology Review
• Rocznik: 2021
• Tom: R. 93, nr 3
• Strony: 49--56
• Opis fizyczny: Bibliogr. 27 poz., il., tab.

Twórcy

autor

Ciftci Jakub

• Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland

autor

Sitek Ryszard

• Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland

autor

Mizera Jarosław

• Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).