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Strengthening effect of grain and twin boundaries in zirconium bi-crystal micropillars
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In this article, the effect of crystallographic orientations and the strengthening due to grain/twin boundaries were investigated by uniaxial compression of single and bi-crystal micropillars of pure pure crystals.Abstract:
In this work, the effect of crystallographic orientations and the strengthening due to grain/twin boundaries were investigated by uniaxial compression of single- and bi-crystal micropillars of pure...read more
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Atomistic study of the structure and deformation behavior of symmetric tilt grain boundaries in α-zirconium
TL;DR: In this paper, the structure, energy and deformation of symmetric tilt grain boundaries (STGBs) in hexagonal close-packed Zr (α -Zr) were investigated.
MECHANICAL PROPERTIES, PHYSICS OF STRENGTH, AND PLASTICITY Dependence of the Critical Radius of Partial Dislocation Loops on the Stacking Fault Energy in Semiconductors
A. V. Mozzherin,A. V. Bril +1 more
TL;DR: In this article, the authors compared theoretical computations of the critical radii of the transition of partial dislocation loops to full ones with allowance for the dislocation loop formation energy and stacking fault energy of the materials.
References
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Journal ArticleDOI
Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B
Sean R. Agnew,Ozgur Duygulu +1 more
TL;DR: In this paper, a combination of experimental and simulation techniques were used to investigate the plastic behavior of wrought magnesium alloy and found that an increased activity of non-basal dislocations provides a self-consistent explanation for the observed changes in the anisotropy with increasing temperature.
Journal ArticleDOI
Size dependence of mechanical properties of gold at the micron scale in the absence of strain gradients
TL;DR: In this article, the authors used uniaxial compression experiments on Au cylinders at the sub-micron scale, without stress/strain gradients, and determined compression stress, strain, and stiffness of the pillars.
Journal ArticleDOI
Nanoscale gold pillars strengthened through dislocation starvation
Julia R. Greer,William D. Nix +1 more
TL;DR: In this article, the authors showed that submicrometer sized gold crystals can be 50 times stronger than their bulk counterparts due to the elimination of defects from the crystal in the course of deformation.
Journal ArticleDOI
Size effects in the deformation of sub-micron Au columns
TL;DR: In this paper, a focused ion beam microscope was used to study single crystal Au columns with diameters ranging from 180'nm to 8'µm. The columns were machined into the surface of a large-grained Au sheet and then mechanically tested using a nanoindenter outfitted with a flat diamond punch.
Journal ArticleDOI
Size-affected single-slip behavior of pure nickel microcrystals
TL;DR: In this paper, a direct assessment of the crystal-size dependence of the critical resolved shear stress has been made for single-slip oriented crystals of pure Ni having sample diameters that range from 40 to 1.0 μm.
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