activity
20182025
most citedAtomic-scale grain boundary engineering to overcome hot-cracking in additively-manufactured superalloys

304 citations · 688 across the 15 of their papers we have counts for

collaborators
Showing 2020Show all

5 papers · 1 filter

cond-mat.mtrl-sci2020★ 1 cited

Mechanisms of Ti3Al precipitation in hcp alpha-Ti

Felicity F. Dear, Paraskevas Kontis, Baptiste Gault +3

Nucleation and growth of TiAl \textalpha{} ordered domains in \textalpha{}-Ti--Al--X alloys were characterised using a combination of transmission electron microscopy, atom…

cond-mat.mtrl-sci2020

A cracking oxygen story: a new view of stress corrosion cracking in titanium alloys

Sudha Joseph, Paraskevas Kontis, Yanhong Chang +4

Titanium alloys can suffer from halide-associated stress corrosion cracking at elevated temperatures e.g., in jet engines, where chlorides and Ti-oxide promote the cracking of wate…

cond-mat.mtrl-sci2020

On the coarsening mechanism and deformation of borides under annealing and creep in a polycrystalline superalloy

Lola Lilensten, Aleksander Kostka, Sylvie Lartigue-Korinek +4

We have investigated the coarsening mechanism of intergranular Cr-rich M2B borides after creep and annealing at 850C for approximately 3000 hours in a polycrystalline nickel-based…

cond-mat.mtrl-sci2020★ 61 cited

Enhanced creep performance in a polycrystalline superalloy driven by atomic-scale phase transformation along planar faults

Lola Lilensten, Stoichko Antonov, Baptiste Gault +2

Predicting the mechanical failure of parts in service requires understanding their deformation behavior, and associated dynamic microstructural evolution up to the near-atomic scal…

cond-mat.mtrl-sci2020★ 54 cited

Spinodal decomposition versus classical gamma-prime nucleation in a nickel-base superalloy powder: An in-situ neutron diffraction and atomic-scale analysis

David M Collins, Neil D'Souza, Chinnapat Panwisawas +4

Contemporary powder-based polycrystalline nickel-base superalloys inherit microstructures and properties that are heavily determined by the thermo-mechanical treatments during proc…