The mechanical properties of superalloys are strongly governed by the resistance to
shearing of ordered precipitates by dislocations. In the operating environments of …

We revisit the meaning of stacking fault energy (SFE) and the assumptions of equilibrium
dissociation of lattice dislocations in concentrated alloys. SFE is a unique value in pure …

Nickel-based superalloys are widely used in aircraft engines and land-based gas turbines
due to their high yield strength and good creep resistance. Co in nickel-based superalloys …

In this study, two similar, commercial polycrystalline Ni-based disk superalloys (LSHR and
ME3) were creep tested at 760° C and 552 MPa to approximately 0.3% plastic strain. LSHR …

Microscopic defects and their mutual interactions are fundamentally important in deciding
the load carrying capacity of structural materials. In this context, the present work reports an …

Multicomponent high-entropy alloys (HEAs) with compositionally disordered elemental
arrangement have attracted extensive attention because of their excellent mechanical …

The effective strategy for structural steel with excellent tolerance of impurities is to increase
solidification rate to prevent the formation of segregation and intermetallic during fabrication …

With the aim of understanding the effect of creep defects in the γ′ phase on the creep
resistance, the atomic structure and elemental segregation behavior of stacking faults (SFs) …

Superlattice intrinsic stacking faults (SISF) are the main culprit for the low temperature creep
deformation of modern nickel-based superalloys used in jet engines. While these faults were …

Dislocation-precipitate interaction and solute segregation play important roles in controlling
the mechanical behavior of Ni-based superalloys at high temperature. In particular, the …