34 citations · 71 across the 12 of their papers we have counts for
10 papers · 1 filter
In situ XRD studies of the process dynamics during annealing in cold rolled copper
S. Dey, N. Gayathri, M. Bhattacharya +1
The dynamics of the release of stored energy during annealing along two different crystallographic planes i.e.{111} and {220} in deformed copper have been investigated using in-sit…
Statistics of dislocation pinning at localized obstacles
A. Dutta, M. Bhattacharya, P. Barat
Pinning of dislocations at nanosized obstacles like precipitates, voids and bubbles, is a crucial mechanism in the context of phenomena like hardening and creep. The interaction be…
Quasistatic Stick-slip in Dislocation Core and Frenkel-Kontorova Chain
M. Bhattacharya, A. Dutta, P. Barat
By means of atomistic simulations, we demonstrate that a dislocation core exhibits intermittent quasistatic restructuring during incremental shear within the same Peierls valley. T…
Mechanism of Climb in Dislocation-Nanovoid Interaction
A. Dutta, M. Bhattacharya, N. Gayathri +2
We employ the methods of atomistic simulation to investigate the climb of edge dislocation at nanovoids by analyzing the energetics of the underlying mechanism. A novel simulation…
In situ studies of evolution of microstructure with temperature in heavily deformed Ti-modified austenitic stainless steel by X-ray Diffraction technique
P. S. Chowdhury, N. Gayathri, P. Mukherjee +4
The mechanism of the evolution of the deformed microstructure at the earliest stage of annealing where the existence of the lowest length scale substructure paves the way to the fo…
Anomalous interaction between dislocations and ultra-small voids
A. Dutta, M. Bhattacharya, P. Mukherjee +3
We carry out the molecular statics simulations of depinning of an edge dislocation at voids of diameters of the order of ~1 nm. We show that the dislocation-void interactions are n…