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 …

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 …

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

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 …

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 …

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 paper develops a Bayesian inference-based probabilistic crack nucleation model for
the Ni-based superalloy René 88DT under fatigue loading. A data-driven, machine learning …

Fatigue crack nucleation in crystalline materials typically develops due to highly localized
cyclic slip. During a fatigue cycle, reverse slip differs locally from slip in the forward direction …