Results 61 to 70 of about 998 (119)

Nanoindentation response of laser shock peened Ti-based bulk metallic glass

AIP Advances, 2015
The effect of laser shock peening (LSP) on mechanical properties of Ti-based bulk metallic glass (BMG) was investigated under nanoindentation. Two regions were generated within the specimen after the LSP: (I) the extremely thick softened region (∼300 µm)
Liang Wang, Lu Wang, Yunfei Xue, Haifeng Zhang, Huameng Fu   +4 more
doaj   +1 more source

Shear bands as growing instabilities in viscoanelastic media with memory

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2013
In this paper we investigate the critical conditions under which a small perturbation in an homogeneous continuum can possibly grows into a shear band instability.
Marina Dolfin, Mauro Francaviglia
doaj   +1 more source

Differences in microstructure and properties of Ti-based amorphous composites between recrystallization and partial remelting and semi-solid isothermal treatment

AIP Advances
The as-cast specimens of Ti48Zr18V12Cu5Be17 amorphous composites were prepared by copper mold suction casting. Next, the as-cast specimens were treated using semi-solid isothermal treatment (SSIT) and recrystallization and partial remelting (RAP).
Xin-hua Huang, Jin-heng Chen, Yu-huai Wang, Yong-xin Luo, Yue-jun Ouyang   +4 more
doaj   +1 more source

Enhancing microstructure and mechanical properties of FeNi1.5CrCu0.5 high-entropy alloy through precipitation treatment and cold rolling

Results in Materials
This study investigates how precipitation treatment affects the microstructure and mechanical properties of FeNi1.5CrCu0.5 high-entropy alloy, focusing on the role of precipitates during deformation.
Farideh Salimyanfard, Mohammad Reza Toroghinejad, Mehdi Alizadeh, Parisa Moazzen, Mohsen Mohammadi   +4 more
doaj   +1 more source

Shear-banding instabilities

, 2010
Gradient-banding and vorticity-banding instabilities, as well as a shear-induced instability due to shear-gradient induced mass transport will be discussed. Various scenarios that underly these instabilities are addressed and simple constitutive relations that allow for a (semi-) quantitative analysis are proposed.
Dhont, J.K.G., Kang, K., Lettinga, M.P., Briels, W.J.   +3 more
openaire   +1 more source

On the origin of non-basal texture in extruded Mg-RE alloys and its implication for texture engineering

Journal of Magnesium and Alloys
The work aims to investigate the formation and transformation mechanism of non-basal texture in the extruded Mg alloys. With this purpose a pure Mg as reference and eight Mg-Gd binary alloys with the Gd concentration ranging from 0.5 wt.% to 18 wt.% were
X.Z. Jin, G.J. Yang, Xinyu Xu, D.B. Shan, B. Guo, B.B. He, C. Fan, W.C. Xu   +7 more
doaj   +1 more source

Texture evolution and shear bands formation induced by Sc doping in Cu–Cr–Zr alloys

Journal of Materials Research and Technology
This study investigates the effect of Sc doping on the deformation microstructure and rolling texture of Cu–Cr–Zr-Sc alloys. After solution treatment + 80% rolling + 450 °C × 1 h aging treatment, the ultimate tensile strength, yield strength, hardness ...
Bowen Ma, Engang Wang, Weixin Luo, Shuanglu Zhang, Xue Zhao, Jingwen Du, Di Wei, Tao Peng, Liang Li   +8 more
doaj   +1 more source

Deformation and failure mechanism of flat-nosed TC4 titanium alloy projectile penetrating steel target at different velocities

Materials & Design
The dynamic behavior of flat-nosed Ti-6Al-4V (TC4) alloy projectiles penetrating Q235 steel targets under three velocities (800 m/s, 983 m/s, and 1167 m/s) was studied experimentally and numerically, emphasizing the evolution of adiabatic shear bands of ...
Yue Zhou, Xinxin Zhao, Longlong Wang, Wenbo Zhuang, Xiaohui Sun, Mingshi Wang, Zhe Chu   +6 more
doaj   +1 more source

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Is a birefringence band a shear band?

Europhysics Letters (EPL), 2000
The discrepancy between the width of birefringence bands and shear rate bands in the system CTAB/water is addressed using a combination of NMR spectroscopy and NMR velocimetry. In correspondence with birefringence measurements in the annular gap of a cylindrical Couette cell, 2H NMR spectroscopy indicates a separation of fluid into distinct nematic and
E Fischer, P. T Callaghan
openaire   +1 more source

Dynamic shear band propagation and micro-structure of adiabatic shear band

Computer Methods in Applied Mechanics and Engineering, 2001
A meshfree Galerkin approximation, reproducing kernel particle method, is used in the displacement-based explicit formulation to simulate dynamic shear band propagation as well as microstructures of adiabatic shear bands. The main advantages of using meshfree interpolants are two: (i) it can effectively avoid mesh-alignment sensitivity that finite ...
Li, Shaofan, Liu, Wing-Kam, Qian, Dong, Guduru, Pradeep R., Rosakis, Ares J.   +4 more
openaire   +2 more sources