Abstract Dynamic Strain Ageing (DSA) has reached widespread acceptance since its
proposal in the 1940's as the mechanism behind the Portevin-Le Chatelier effect in ferritic …

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

Single crystal Ni-based superalloys have long been an essential material for gas turbines in
aero engines and power plants due to their outstanding high temperature creep, fatigue and …

Decades of research has been focused on improving the high-temperature properties of
nickel-based superalloys, an essential class of materials used in the hot section of jet turbine …

The delta (δ) processing strategy is an efficient heat treatment to refine and homogenize the
grain microstructure of Inconel 718 superalloy (IN718). However, the microstructure …

High-entropy alloys (HEAs) are an exciting new class of multi-component alloys some of
which have unusual and remarkable properties. As of yet, little is understood about …

The segregation of solutes at dislocations in a polycrystalline and a single crystal nickel-
based superalloy is studied. Our observations confirm the often assumed but yet unproven …

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 …

The contribution of a microtwinning mechanism to the creep deformation behaviour of single
crystal superalloy MD2 is studied. Microtwinning is prevalent for uniaxial loading along< …

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 …