Dislocation strengthening in FCC metals and in BCC metals at high temperatures
Sign Up to like & getrecommendations! Published in 2017 at "Acta Materialia"
DOI: 10.1016/j.actamat.2016.12.040
Abstract: Abstract Till now, it was widely believed that the dislocation strengthening coefficients used in the Taylor-like relation were universal for a given crystallographic class of materials. In the present study, it is shown that this… read more here.
Keywords: dislocation strengthening; fcc metals; bcc metals; poisson ratio ... See more keywords
Thermally-activated dislocation mobility in bcc metals: An accelerated molecular dynamics study
Sign Up to like & getrecommendations! Published in 2021 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2021.110804
Abstract: Abstract Plastic deformation in metals is controlled by dislocation density and mobility. In bcc metals the mobility of screw dislocations, which takes place by temperature- and stress-driven nucleation of critical kink-pairs, is most essential for… read more here.
Keywords: dislocation mobility; molecular dynamics; mobility; dislocation ... See more keywords
Grain boundary phases in bcc metals.
Sign Up to like & getrecommendations! Published in 2018 at "Nanoscale"
DOI: 10.1039/c8nr00271a
Abstract: We report a computational discovery of novel grain boundary structures and multiple grain boundary phases in elemental body-centered cubic (bcc) metals represented by tungsten, tantalum and molybdenum. While grain boundary structures created by the γ-surface… read more here.
Keywords: boundary phases; grain boundary; ground; bcc metals ... See more keywords
Effective medium theory for bcc metals: electronically non-adiabatic H atom scattering in full dimensions
Sign Up to like & getrecommendations! Published in 2022 at "Physical Chemistry Chemical Physics"
DOI: 10.1039/d2cp00087c
Abstract: We report a newly derived Effective Medium Theory (EMT) formalism for bcc metals and apply it for the construction of a full-dimensional PES for H atoms interacting with molybdenum (Mo) and tungsten (W). We construct… read more here.
Keywords: bcc metals; atom scattering; effective medium; medium theory ... See more keywords