Journal of Theoretical
and Applied Mechanics

56, 3, pp. 893-896, Warsaw 2018
DOI: 10.15632/jtam-pl.56.3.893

Damage development of Inconel 718 due to laboratory simulated creep

Katarzyna Makowska, Adam Brodecki, Sławomir Mackiewicz, Zbigniew Ludwik Kowalewski
The paper presents an attempt of application of the acoustic birefringence coefficient for
early stage degradation assessment of Inconel 718 nickel superalloy after short-term creep.
It is shown that it can serve as a good damage sensitive parameter and, moreover, it can be
well correlated with hardness variation.
Keywords: creep, nickel superalloy, microstructure, pre-deformation, hardness, acoustic birefringence


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