Powder metallurgy (PM) Ni-based superalloys are widely used for aeroengine turbine disc
applications due to their excellent mechanical properties and good corrosion resistance at …

Metallic materials experience irreversible deformation with increasing applied stress,
manifested in localized slip events that result in fatigue failure upon repeated cycling. We …

Microstructure stability directly affects the performance degradation of hot-end structural
parts such as turbine discs. In this research, long-term (10–10000 h) thermal exposure …

Since aviation sector equipment has evolved to very long-life application conditions, critical
components and structures are regularly subjected to complex environments and applied …

In this study, a dual-scale numerical procedure is developed to reveal the creep-fatigue
damage mechanisms and estimate the crack initiation life for notched structures made of …

Inherent micro-cracking mechanisms in two contrasting high-gamma-prime (high-γ') Ni-
based superalloys processed by laser powder bed fusion (LPBF) were investigated. RENÉ …

Crack initiation mechanisms in the very high cycle fatigue (VHCF) regime of nickel-based
single-crystal (SX) superalloys have been investigated at high temperature (1000° C) and …

Crack initiation is an essential stage of fatigue process due to its direct effect on fatigue
failure. However, for titanium alloys in high-temperature high cycle fatigue (HCF), the crack …

The slip localization behavior of the polycrystalline nickel base superalloy Inconel 718
during monotonic tensile loading at room temperature, is investigated for the first time in …

This work provides a comprehensive characterization and analysis of deformation and
fatigue damage mechanisms in a nickel-based superalloy during ambient temperature …