Elena D. Tabachnikova

TL;DR: In this article, the authors studied the stress-life fatigue behavior and fatigue crack growth characteristics of pure Ni as a function of grain size spanning a range of tens of nanometer to tens of micrometer and found that grain refinement to the nanocrystalline regime generally leads to an increase in total life under stress-controlled fatigue whereas a deleterious effect was seen on the resistance to fatigue cracks growth at low and high tensile load ratio levels.

TL;DR: In this paper, electron microscopy observations of shear steps on Zr-based bulk metallic glasses were used to demonstrate that a 0.2μm layer melts in the vicinity of a shear band forming a 1μm shear step.

TL;DR: In this paper, the serration behaviors of several high-entropy alloys (HEAs) from cryogenic to elevated temperatures were discussed, and the experimental results of slow compression and tension tests were compared with the predictions of a slip-avalanche model for the deformation of a broad range of solids.

TL;DR: Fractographic studies of ductile shear failure under the uniaxial compression for rod-like samples of the Zr41.2Ti13.8Ni10Cu12.5Be22.5 and Cu50Zr35Ti8Hf5Ni2 bulk amorphous alloys at temperatures 300 and 77 K are presented in this paper.

TL;DR: A deformation-induced phase transformation in a face-centered cubic (FCC) Co 20 Cr 26 Fe 20 Mn 20 Ni 14 high-entropy alloy during cryogenic high-pressure torsion (HPT) was discovered in this article.