Incoherent twin boundary
WebView publication. Copy reference. Copy caption WebOct 24, 2024 · Twin boundary migration in the direction perpendicular to the CTB …
Incoherent twin boundary
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WebApr 20, 2024 · Our results suggested this ITGB as a mirror-glide boundary formed by gliding the atoms along [20 2 ¯ 1 ¯] of a {10 1 ¯ 4}< 20 2 ¯ 1 ¯ > coherent twin boundary due to its interaction with stacking faults. The ITGB can be further stabilized by partial-column Gd substitution, leading to the observed unique segregation pattern. WebAug 8, 2024 · The face-centered cubic γ matrix can be transformed to the hexagonal close-packed ɛ phase (as small as one unit) around an incoherent Σ3 boundary (~30 nm), i.e., the facet of the coherent Σ3 boundary. This transformation is assisted by the detwinning/twin growth of a coherent Σ3 boundary during annealing treatment (900 °C for 60 min).
WebApr 11, 2024 · The interfacial bonding characteristics and atom arrangement are also analyzed. Two types of boundaries are clearly observed in Fig.3 (d), including incoherent twin boundary ITBs parallel to the stacking growth direction and coherent twinning boundary CTBs oriented normal to the growth direction of 9R phase. Obviously, ITBs shows a … WebOct 20, 2024 · Incoherent twin boundaries (ITBs) can significantly affect the mechanical properties of twin-structured metals. However, most previous studies have focused on the deformation mechanism of the coherent twin boundary (CTB), and metals with ITB-accommodated plasticity still require further investigation.
WebMar 30, 2024 · It can be seen that detwinning process is characterized by the detachment of the twin crystal from grain boundaries by the formation and migration of incoherent twin boundaries (ITBs) that are perpendicular to the existing Σ11 {332} CTBs, as revealed by plane trace analysis.
WebMar 31, 2024 · The correlation among dislocation activity, twin boundary instability due to incoherent twin boundary migration and corresponding mechanical responses was investigated. Dislocations piled up in the nanotwinned copper, giving rise to significant hardening at relatively high strain rates of 3–5 × 10 −4 /s. Lower strain rates resulted in ...
WebJan 25, 2024 · Previous classic theoretical models have predicted that the {111} planes … photographs from the shchyryi kum supermarketWebTaylor & Francis Online: Peer-reviewed Journals how many people attend swe conferenceWebJul 27, 2016 · Dominant generation of twin boundaries (TBs) and low-angle grain … photographs herpesWebJan 10, 2013 · Incoherent twin boundary migration induced by ion irradiation in Cu Nan Li, Jian Wang, +3 authors A. Misra Published 10 January 2013 Materials Science Journal of Applied Physics Grain boundaries can act as sinks for radiation-induced point defects. The sink capability is dependent on the atomic structures and varies with the type of point … how many people could fit on a galleonWebMar 1, 2024 · The twin boundary disconnections act as preferential nucleation sites for deformation twin that is a characteristic difference from the coarse-grained counterpart, and is likely correlated with the lethargy of grain interior … how many people are in the japanese armyWebMay 5, 2024 · Considering the interfacial plane, two types of twin boundaries must be distinguished: coherent twin boundaries lying in the {111} plane that contains the mirror symmetry element relating the two adjacent crystal lattices, and incoherent twin boundaries lying in any other plane. how many parts in a f1 carWebSep 16, 2011 · In particular, two unit processes are highlighted: first, stress-induced migration of Σ3 {112} incoherent twin boundary that leads to de-twinning of nanotwins; second, twinning dislocation can be multiplied at Σ3 {111} coherent twin boundary. Download to read the full article text References J.W. Christian and S. Mahajan, Prog. Mater. photographs gallery