Orientation dependence of shear banding in face-centered-cubic single crystals

Jia, Nan; Eisenlohr, Philip; Roters, Franz; Raabe, Dierk; Xi-nan, Zhao

doi:10.1016/j.actamat.2012.03.005

Cited by 136 publications

(55 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4c, where the micro shear band aligned along (113) crystal plane. This corresponds to other studies reported that micro shear bands in FCC crystals form as noncrystallographic band-like deformation regions of highly concentrated plastic flow [33,34]. The dislocation density at 60% rolling degree increased to ρ$3.5 Â 10 15 m À 2 .…”

Section: Microstructure Evolutionsupporting

confidence: 52%

Microstructure evolution and strengthening mechanisms of Fe–23Mn–0.3C–1.5Al TWIP steel during cold rolling

Kusakin

Belyakov

Haase

et al. 2014

Materials Science and Engineering: A

118

View full text Add to dashboard Cite

a b s t r a c tThe effect of cold rolling on the microstructure evolution and mechanical properties of Fe-23Mn-0.3C-1.5Al twinning-induced plasticity (TWIP) steel was studied. The extensive mechanical twinning subdivides the initial grains into nanoscale twin lamellas. In addition, the formation of deformation micro bands at ε440% induces the formation of nanostructured bands of localized shear. It is demonstrated that the mechanical twinning is notably important for dislocation storage within the matrix, as the twin boundaries act as equally effective obstacles to dislocation glide as conventional high-angle grain boundaries. However, the contribution of the grain size strengthening to the overall yield stress (YS) is much smaller than that of the deformation strengthening, which plays a major role in the superior work-hardening behavior of TWIP steels. A very high dislocation density of $ 2 Â 10 15 m À 2 is achieved after plastic deformation with moderate strains. The superposition of deformation strengthening and grain boundary strengthening leads to an increase in the YS from 235 MPa in the initial state to 1400 MPa after 80% rolling.

show abstract

Section: Microstructure Evolutionsupporting

confidence: 52%

Microstructure evolution and strengthening mechanisms of Fe–23Mn–0.3C–1.5Al TWIP steel during cold rolling

Kusakin

Belyakov

Haase

et al. 2014

Materials Science and Engineering: A

118

View full text Add to dashboard Cite

show abstract

“…Modeling of shear band formation in brass has been accomplished by modifying the shear components of the velocity gradient corresponding to shear bands in grains that had accumulated a substantial twin volume fraction (Kalidindi, 2001). Likewise, introducing explicit non-crystallographic shear banding mechanisms has also been successful in capturing shear band formation (Anand and Su, 2005;Jia et al, 2012a;Jia et al, 2012b). This approach was found to help weaken certain texture M A N U S C R I P T…”

Section: Introductionmentioning

confidence: 96%

A study of microstructure-driven strain localizations in two-phase polycrystalline HCP/BCC composites using a multi-scale model

Ardeljan

Knežević

Nizolek

et al. 2015

International Journal of Plasticity

146

View full text Add to dashboard Cite

“…Inside individual grains heterogeneity can also exist in the form of microshear bands and localized glide bands [13][14][15], where such features are most commonly observed at medium to high strains. Sample scale heterogeneity can also be important, either in the form of macroscopic shear banding [16][17][18] or due to the nature of the applied deformation (for example, the effect of friction and roll gap geometry during rolling [19], or dead zones during compression). The importance of the deformation microstructure for understanding recrystallization during annealing of deformed metals is well accepted.…”

Section: Introductionmentioning

confidence: 99%

Characterization and influence of deformation microstructure heterogeneity on recrystallization

Godfrey

Mishin

2015

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

Abstract. The microstructure resulting from plastic deformation of metals typically contains heterogeneity on several length scales. This is also true for samples deformed to large strains, where an important form of heterogeneity is in the variation in microstructural refinement by high angle boundaries. A methodology for quantifying this type of heterogeneity based on the identification of areas classified as low misorientation regions (LMRs) is described, and some parameters for quantification of both the extent and length scale of LMRs are presented. It is then shown how this approach can be used to investigate the early stages of recrystallization in samples deformed to large strains, by direct comparison of electron backscatter diffraction (EBSD) maps of the same area before and after annealing. Methods for estimation of the stored energy of deformation from EBSD data are also surveyed and the problems of each for quantification of the local variation in stored energy are discussed, where it is concluded that a method based on the summation of the contributions from individual boundary segments is considered to be the best suited at present for characterization of the local variation in stored energy on the scale of the dislocation boundary features.

show abstract

Orientation dependence of shear banding in face-centered-cubic single crystals

Cited by 136 publications

References 57 publications

Microstructure evolution and strengthening mechanisms of Fe–23Mn–0.3C–1.5Al TWIP steel during cold rolling

Microstructure evolution and strengthening mechanisms of Fe–23Mn–0.3C–1.5Al TWIP steel during cold rolling

A study of microstructure-driven strain localizations in two-phase polycrystalline HCP/BCC composites using a multi-scale model

Characterization and influence of deformation microstructure heterogeneity on recrystallization

Contact Info

Product

Resources

About