Open AccessINFLUENCE OF ALLOYING ELEMENTS ON THE MICROSTRUCTURE OF NEW COBALT MATRIX SUPERALLOYS REINFORCED WITH PHASE – L12
Author(s) -
Tymoteusz Jung,
Milena Kierat
Publication year - 2021
Publication title -
journal of metallic materials
Language(s) - English
Resource type - Journals
ISSN - 2657-747X
DOI - 10.32730/imz.2657-747.20.4.4
Subject(s) - superalloy , materials science , cobalt , metallurgy , microstructure , aerospace , aerospace materials , nickel , phase (matter) , engineering , chemistry , organic chemistry , aerospace engineering
The article presents selected results of research on the primary structure of a new generation of cobalt-based Co-20Ni-10Al-5Mo-2Nb superalloys. Research on this group of materials was started in 2006 by J. Sato. These materials are anticipated to be able to replace nickel-based superalloys in the future due to their superior elevated temperature properties compared to the nickel-based superalloys. Today, γ’ nickel-based superalloys are still unrivalled in aerospace applications, however, cobalt-based superalloys are a response to their existing limitations, which do not allow the current pace of aircraft engine development to be maintained.