Special non-CSL grain boundaries in tungsten: Misorientation distribution and energetics

Sadanov, E. V.; Mazilova, T. I.; Ksenofontov, V. A.; Starchenko, I.V.; Mikhaĭlovskij, I. M.

doi:10.1016/j.matlet.2015.01.088

Cited by 4 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 ). Figure 1 is found to contain a GB with a misorientation angle 19° (shown by arrows) that corresponded to a special non-CSL angle ω Σ 9 /2 = 19.47 ° , earlier revealed in [ 7 ]. The grain boundary is oriented at the average along the boundary plane.…”

Section: Resultsmentioning

confidence: 55%

“…In our recent study, it was shown that the misorientation angle distribution of GBs in heavily drawn ultrafine-grained tungsten demonstrates a tendency for high-angle GBs to have significant populations at certain non-CSL misorientation angles around the [110] axis [ 7 ]. A crystallographic consideration shows that these misorientations are related to a special type of GBs terminated by a low index plane and the medium index complements to this surface.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Special Grain Boundaries in Ultrafine-Grained Tungsten

et al. 2016

View full text Add to dashboard Cite

Field ion microscopy and computer simulation were used for the study of an atomic structure high-angle grain boundary in hard-drawn ultrafine-grained tungsten wire. These boundaries with special misorientations are beyond the scope of the coincident site lattice model. It was demonstrated that the special non-coincident grain boundaries are the plane-matching boundaries, and rigid-body displacements of adjacent nanograins are normal to the <110> misorientation axis. The vectors of rigid-body translations of grains are described by broad asymmetric statistical distribution. Mathematical modeling showed that special incommensurate boundaries with one grain oriented along the {211} plane have comparatively high cohesive energies. The grain-boundary dislocations ½<110> were revealed and studied at the line of local mismatch of {110} atomic planes of adjacent grains.

show abstract

Section: Resultsmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%