Ni-based superalloys are key materials for hot-end components of aeroengines.
Considering the importance and complex of aeroengine components, the understanding on …

Precipitation is an efficient method to strengthen metallic materials. While precipitation
hardening effects on dislocation slip have been studied extensively in the past, the influence …

Ni-based single crystal superalloys exhibit superb mechanical strength, particularly, creep
resistance at elevated temperature. The unique microstructure, which is consisted of γ γ and …

The fatigue performance and deformation mechanism of Ni-based single crystal superalloys
under cyclic tension–compression loading are studied by molecular dynamics simulations …

The vacancy effects on the site preferences of alloying elements Re, Mo, Ta and Cr at γ/γ′
interface are studied using first-principles density functional theory. The alloying …

The interaction of dislocations with precipitates is an essential strengthening mechanism in
metals, as exemplified by the superior high-temperature strength of Ni-base superalloys …

The excellent mechanical properties of Ni-based superalloys rely on their unique two-phase
microstructure. Here we probe the influence of interfacial dislocation network on strain-rate …

Generally, larger non-metallic inclusions have a negative influence on crack growth
resistance due to the stress concentration effects that result from them appearing along the …

Whereas conventional precipitation hardening is well-known to feature a single hardness
peak, recently, double-peak precipitation hardening was observed, where the first peak …

The aim of this study is to investigate the role of the temperature, stress, and rhenium (Re)
on the γ/γ'interfacial misfit dislocation network and mechanical response of Ni-based single …