  This scientific paper aims to study the correlation between the mobile and
immobile dislocation within loaded slip bands observed in situ, shedding light
on the underlying plastic deformation mechanisms. The full Nye lattice
curvature tensor was measured using high-resolution electron-backscatter
diffraction (HR-EBSD) to estimate the dislocations density. We observed that
dislocation activities at the slip band were mainly from immobile edge
dislocations to maintain the geometrical distortion of the slip band. A burst
of dislocations was induced at the slip band associated with hot spots related
to the intense strain gradient.
