Materials and corrosion trends in offshore and subsea oil and gas production

M Iannuzzi, A Barnoush, R Johnsen - npj Materials Degradation, 2017‏ - nature.com
The ever-growing energy demand requires the exploration and the safe, profitable
exploitation of unconventional reserves. The extreme environments of some of these unique …

The dual role of coherent twin boundaries in hydrogen embrittlement

M Seita, JP Hanson, S Gradečak… - Nature …, 2015‏ - nature.com
Hydrogen embrittlement (HE) causes engineering alloys to fracture unexpectedly, often at
considerable economic or environmental cost. Inaccurate predictions of component lifetimes …

Calculated resistances of single grain boundaries in copper

M César, D Liu, D Gall, H Guo - Physical Review Applied, 2014‏ - APS
The resistance of copper grain boundaries (GBs) is calculated systematically through a full
atomistic quantum approach. A set of twin GBs, including the coherent twin GB, is generated …

[HTML][HTML] Hierarchical layered and refined grain structure of Inconel 718 superalloy produced by rolling-assisted directed energy deposition

C Li, Y Tian, Y Chen, P Hodgson, X Wu, Y Zhu… - Additive Manufacturing …, 2021‏ - Elsevier
Additive manufacturing (AM) of nickel superalloys typically leads to large columnar grains
forming along the build direction, resulting in poor and anisotropic tensile performance. In …

Crystallographic character of grain boundaries resistant to hydrogen-assisted fracture in Ni-base alloy 725

JP Hanson, A Bagri, J Lind, P Kenesei… - Nature …, 2018‏ - nature.com
Hydrogen embrittlement (HE) causes sudden, costly failures of metal components across a
wide range of industries. Yet, despite over a century of research, the physical mechanisms of …

Defect character at grain boundary facet junctions: Analysis of an asymmetric Σ= 5 grain boundary in Fe

DL Medlin, K Hattar, JA Zimmerman, F Abdeljawad… - Acta Materialia, 2017‏ - Elsevier
Grain boundaries often develop faceted morphologies in systems for which the interfacial
free energy depends on the boundary inclination. Although the mesoscale thermodynamic …

Grain boundary structure in high-entropy alloys

D Farkas - Journal of Materials Science, 2020‏ - Springer
We report atomistic simulation studies of grain boundary structure in a high-entropy FCC
alloy. The simulations are based on empirical interatomic potentials and use massively …

Plasticity-induced restructuring of a nanocrystalline grain boundary network

JF Panzarino, Z Pan, TJ Rupert - Acta Materialia, 2016‏ - Elsevier
The grain boundary-mediated mechanisms that control plastic deformation of
nanocrystalline metals should cause evolution of the grain boundary network, since they …

Quantification of multiple twinning in face centred cubic materials

C Cayron - Acta Materialia, 2011‏ - Elsevier
Grain boundary engineering (GBE) aims at optimizing the properties of face centred cubic
materials with low stacking fault energy by creating a high content of special twin …

Characterization of localized deformation near grain boundaries of superalloy René-104 at elevated temperature

JLW Carter, MW Kuper, MD Uchic, MJ Mills - Materials Science and …, 2014‏ - Elsevier
Abstract in situ surface deformation measurement techniques were applied to characterize
strain localization sites in nickel-based superalloys when tested under constant load at 700° …