The local microstructure, texture gradient and mechanical properties through the shoulder dimension (10 mm) of upper lower AA5182 aluminum sheets were investigated using electron backscatter diffraction (EBSD) Vickers microhardness after friction stir spot welding (FSSW). Based on microstructural features (mean grain size, boundary type dynamic recrystallization (DRX)), sheet was found to be ma...

AZ61/carbon nanotubes (CNTs) (0, 0.1, 0.5, and 1 wt.%) composites were successfully fabricated by using the stir-casting method. Hall–Petch relationship superposition of different strengthening mechanisms analyzed for aged as-cast AZ61/CNTs composites. Aged showed higher frictional stress (108.81 MPa) than that (31.56 Mpa) when grain size was fitted directly against experimentally measured yiel...

This paper is proposing to the scientific community a new, original approach to the problem of the bio-mechanical and tensile study of the human cornea. By overturning the traditional “classic” approach, focusing mainly on the analysis of the collagen fibril composition and distribution, and on the yield stress of the Stroma only (in the wrong assumption of its alleged “major importance”, as a ...

High strength transparent Y2O3 ceramics were fabricated from commercial powders using spark plasma sintering (SPS) technique by optimizing the heating rate. The rate significantly influenced microstructures and optical/mechanical properties of ceramics. Grain growth was limited accordingly with increasing ball milling process is likely to further enhance sinterability during SPS processing. den...

To have an insight into the occurrence of inverse Hall-Petch relationship in ultrafine-grained (UFG) aluminum alloys produced by severe plastic deformation (SPD), ultra-SPD (i.e. inducing several ten thousand shear strains via high-pressure torsion, HPT) followed aging is applied to Al-La-Ce alloy. Average nanograin sizes 40 and 80 nm are successfully achieved together with strain-induced Lomer...