108 citations · 332 across the 7 of their papers we have counts for
7 papers
On the influence of alloy composition on the additive manufacturability of Ni-based superalloys
Joseph N. Ghoussoub, Yuanbo T. Tang, William J B. Dick-Cleland +5
The susceptibility of nickel-based superalloys to processing-induced crack formation during laser powder-bed additive manufacturing is studied. Twelve different alloys -- some of e…
Creep-fatigue interactions in a polycrystalline structural material under typical high-temperature power plant operating conditions
Markian Petkov, Marc Chevalier, David Dean +1
A micromechanical model at the microscale within a crystal plasticity self-consistent model, is used to analyse loading histories in Type 316H stainless steel, common to structural…
Evaluation of local stress state due to grain-boundary sliding during creep within a crystal plasticity finite element multi-scale framework
Markian Petkov, Elsiddig Elmukashfi, Edmund Tarleton +1
Previous studies demonstrate that grain-boundary sliding could accelerate creep rate and give rise to large internal stresses that can lead to damage development, e.g. formation of…
Characterisation of slip and twin activity using digital image correlation and crystal plasticity finite element simulation: Application to orthorhombic -uranium
Nicolò Grilli, Philip Earp, Alan C. F. Cocks +2
Calibrating and verifying crystal plasticity material models is a significant challenge, particularly for materials with a number of potential slip and twin systems. Here we use di…
The influence of hydrogen core force shielding on dislocation junctions in iron
Haiyang Yu, Ivaylo H. Katzarov, Anthony T. Paxton +2
The influence of hydrogen on dislocation junctions was analysed by incorporating a hydrogen dependent core force into nodal based discrete dislocation dynamics. Hydrogen reduces th…
Discrete dislocation plasticity HELPs understand hydrogen effects in bcc materials
Haiyang Yu, Alan Cocks, Edmund Tarleton
In an attempt to bridge the gap between atomistic and continuum plasticity simulations of hydrogen in iron, we present three dimensional discrete dislocation plasticity simulations…