Path Dependency of Plastic Deformation in Crystals: Work Hardening, Crystallographic Rotation and Dislocation Structure Evolution
نویسندگان
چکیده
This paper reviewed the research progress of studies on crystal rotation single crystals that were deformed by tension and shear influences dislocation evolution strain hardening behavior in with different initial orientations. The is entirely depending whether was or shear. A three-stage work behavior, which not one intrinsic properties materials, generated when FCC metallic are along unstable oriFigurFigurentations, but do exhibit this they simple at room temperature. Under tension, causes transition from stage I to II, while II III caused evolution. structure related deformation loading can be classified into three types a tension. Different stress directly act 12 slip systems When (11¯1)[110], (111)[112¯] (001)[110] orientations, system, co-planar co-directional activated, respectively, hardly rotate under conditions. direction [110] forces toward tangles tend form cells wall structures multiple activated
منابع مشابه
Predicting Plastic Deformation and Work Hardening during V- Band Formation
V-Band Clamps are manufactured using a cold roll forming process consisting of six passes which plastically deform an initially flat strip by bending to produce the band’s V-section. In this paper a new method of validating numerically predicted plastic deformation in a cold formed metal strip is presented. Tensile testing of samples of the band’s material was used to obtain a direct link betwe...
متن کاملDislocation subgrain structures and modeling the plastic hardening of metallic single crystals
A single crystal plasticity theory for insertion into finite element simulation is formulated using sequential laminates to model subgrain dislocation structures. It is known that local models do not adequately account for latent hardening, as latent hardening is not only a material property, but a nonlocal property (e.g. grain size and shape). The addition of the nonlocal energy from the forma...
متن کاملDislocation Mechanisms of Plastic Deformation of Ice
Characters and properties of dislocations in ice are thoroughly reviewed on the basis of the knowledge hitherto obtained by the X-ray topographic method as well as recently found dynamical behavior. Extremely low energy of the faults on the basal plane found by the method leads us to conclude that all of the dislocations in ice should be extended as wide as several tens to one hundred nano-mete...
متن کاملPlastic deformation of CoO single crystals
2014 Constant strain rate compressions along 001 > have been performed on CoO single crystals (03B5 ~ 6 x 10-5 s-1). Yield stresses and work hardening rates have been measured between 77 K and 1 400 K; CoO is very strong when compared to similar compounds. Vickers indentations have been performed on { 100 }, { 110 } and { 111 } faces around the Néel temperature, i.e. between 0 °C and 40 °C...
متن کاملPlastic deformation of single nanometer-sized crystals.
We report in situ electron microscopy observations of the plastic deformation of individual nanometer-sized Au, Pt, W, and Mo crystals. Specifically designed graphitic cages that contract under electron irradiation are used as nanoscopic deformation cells. The correlation with atomistic simulations shows that the observed slow plastic deformation is due to dislocation activity. Our results also...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Crystals
سال: 2022
ISSN: ['2073-4352']
DOI: https://doi.org/10.3390/cryst12070999