Most metallurgical properties, eg, dislocation propagation, precipitate formation, can only be fully understood atomistically but most phenomena and quantities of interest cannot be …
The 6000 series Al alloys, which include a few percent of Mg and Si, are important in automotive and aviation industries because of their low weight, as compared to steels, and …
High-strength metal alloys achieve their performance via careful control of precipitates and solutes. The nucleation, growth, and kinetics of precipitation, and the resulting mechanical …
Interatomic potentials are essential for studying fundamental mechanisms of deformation and failure in metals and alloys because the relevant defects (dislocations, cracks, etc.) are …
Many metal alloys are strengthened by controlling precipitation to achieve an optimal peak- aged condition where the strength-limiting processes of precipitate shearing and Orowan …
Various industrial/commercial applications use Al-Mg alloys, yet the Mg added to Al materials, to improve strength, is susceptible to surface segregation and oxidation, leaving …
PH Ninive, OM Løvvik, A Strandlie - Metallurgical and Materials …, 2014 - Springer
The β ″phase is the major hardening precipitate in Al-Mg-Si alloys. It was studied by atomistic calculations based on density functional theory (DFT), using an atomistic model …
FJH Ehlers, S Dumoulin, R Holmestad - Computational materials science, 2014 - Elsevier
We extend a first principles based hierarchical multi-scale model scheme for describing a fully coherent precipitate in a host lattice to 3D simulations. As our test system, the needle …
N Sandberg, M Slabanja, R Holmestad - Computational materials science, 2007 - Elsevier
A class of proposed coherent precipitate structures (Guinier–Preston zones) in the Al–Mg–Si alloy are investigated using first-principles density functional theory methods. The cluster …