Microtwinning and other shearing mechanisms at intermediate temperatures in Ni-based superalloys
In Ni-based superalloys, microtwinning is observed as an important deformation mechanism
at intermediate temperature and low stress and strain rate conditions. Current knowledge …
at intermediate temperature and low stress and strain rate conditions. Current knowledge …
Microstructural evolution of a Ni-based superalloy (617B) at 700 C studied by electron microscopy and atom probe tomography
We report on the microstructural evolution of a polycrystalline Ni-based superalloy (Alloy
617B) for power plant applications at a service temperature of 700° C. The formation of …
617B) for power plant applications at a service temperature of 700° C. The formation of …
Modeling antiphase boundary energies of Ni3Al-based alloys using automated density functional theory and machine learning
Antiphase boundaries (APBs) are planar defects that play a critical role in strengthening Ni-
based superalloys, and their sensitivity to alloy composition offers a flexible tuning …
based superalloys, and their sensitivity to alloy composition offers a flexible tuning …
Elemental partitions and deformation mechanisms of L12-type multicomponent intermetallics
Multicomponent high-entropy alloys (HEAs) with compositionally disordered elemental
arrangement have attracted extensive attention because of their excellent mechanical …
arrangement have attracted extensive attention because of their excellent mechanical …
Effect of alloying elements on the γ'antiphase boundary energy in Ni-base superalloys
Mechanical and fatigue performance of γ-γ′ Ni-base superalloys are strongly affected by
the antiphase boundary energy (APBE) of the γ′ precipitates which, in turn, is dictated by …
the antiphase boundary energy (APBE) of the γ′ precipitates which, in turn, is dictated by …
Calculated site substitution in ternary -Al: Temperature and composition effects
AV Ruban, HL Skriver - Physical Review B, 1997 - APS
The temperature and composition dependence of the site substitution behavior of ternary
additions to Ni 3 Al is examined on the basis of first-principles calculations of the total …
additions to Ni 3 Al is examined on the basis of first-principles calculations of the total …
Dynamic localized phase transformation at stacking faults during creep deformation and new criterion for superalloy design
A novel phenomenon, dynamic localized phase transformation (LPT) at stacking faults
during deformation, has been observed in various Ni-base and Co-base superalloys and …
during deformation, has been observed in various Ni-base and Co-base superalloys and …
Quantitative prediction of Suzuki segregation at stacking faults of the γ'phase in Ni-base superalloys
Recent experiments suggest that Suzuki segregation may play an important role during
deformation in Ni-base superalloys at intermediate temperatures. In this study, a segregation …
deformation in Ni-base superalloys at intermediate temperatures. In this study, a segregation …
[HTML][HTML] The site preference and doping effect on mechanical properties of Ni3Al-based γ′ phase in superalloys by combing first-principles calculations and …
The fundamental aspects of site preference of alloying elements on sublattice of the
strengthen γ′ phase with L1 2 structure have not been well understood, which hinders the …
strengthen γ′ phase with L1 2 structure have not been well understood, which hinders the …
Ordering and phase separation in Ni–Cr–Al: Monte Carlo simulations vs three-dimensional atom probe
Ordering and phase separation in Ni–Cr–Al alloys were studied using Monte Carlo (MC)
simulation and three-dimensional atom probe. Excellent agreement was found. Simulation …
simulation and three-dimensional atom probe. Excellent agreement was found. Simulation …