Phase Formation, Microstructure, and Mechanical Properties of Ni-Cu Bimetallic Materials Produced by Electron Beam Additive Manufacturing

Autor: Kseniya Osipovich, Denis Gurianov, Andrey Vorontsov, Evgeny Knyazhev, Alexander Panfilov, Andrey Chumaevskii, Nikolai Savchenko, Sergey Nikonov, Valery Rubtsov, Evgeny Kolubaev
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Metals, Vol 12, Iss 11, p 1931 (2022)
Druh dokumentu: article
ISSN: 2075-4701
DOI: 10.3390/met12111931
Popis: The paper presents the results of applying wire-feed electron beam additive manufacturing technology to produce bimetallic samples of CuCr1 copper alloy and Udimet 500 nickel-based superalloy. Different printing strategies were used to obtain samples with a defect-free structure and high mechanical properties in the transition zone, not inferior to the strength of copper alloy. Two types of samples were fabricated with a sharp and smooth CuCr1/Udimet 500 interface. The printing strategies of type I and II samples differed in the combination and arrangement of nickel and copper alloy layers. Structural studies in the transition zone revealed mechanical mixtures of initial copper and nickel alloy components and solid solutions based on nickel, copper, and chromium. Despite the presence of defects and structural heterogeneities in the experimental samples, the mechanical properties of the main components are at a high level, corresponding to the typical properties of copper and nickel alloys. The strength of the transition zone in type II samples is between the strength of Udimet 500 and CuCr1.
Databáze: Directory of Open Access Journals