The evolution of the overall microstructure and contribution constituent second phase particles during accelerated corrosion AA 7075-T651 warrants further scrutiny. A correlative microscopy-based approach was employed to study damage in subjected potentiodynamic polarization. X-ray Computed Tomography (XCT) scanning electron microscopy were used track initiation propagation globally at specific...

In this study, AA7075/SiC/TiB2 closed-cell aluminium hybrid composite foams (AHCFs) with different densities were fabricated by top-loaded bottom-pouring stir casting technique. This technique uses oyster-shell powders (CaCO3 2.5 wt% of 60 μm size) as blowing agents and no viscosity-enhancing ingredient. The silicon carbide (SiC 0, 3, 6, 9, 12 25 μm) titanium diboride (TiB2 3 particle size 15 a...

Abstract The drastic distortion of potentiodynamic polarization curves measured at high potential scan rates prevents the extraction accurate kinetic parameters. In this work, we start by measuring AA7075 ranging from 0.167 mV·s ?1 to 100 , in an acidic 0.62 M NaH 2 PO 4 solution and a near-neutral 3.5 wt% NaCl solution. Changes are observed not only different electrolytes but also between repl...

A promising solid-state coating mechanism based on the cold spray technique provides highly advantageous conditions thermal-sensitive magnesium alloys. To study effect of heat balance in microstructure, experiments were designed to successfully coat AA7075 AZ31B with two different yield a coated sample tensile residual stress and compressive both substrate. The effects temperature microstructur...

This paper, studied the effect of heat treatment and anodization on corrosion resistance aluminum alloy 7075 (AA7075), with a view to improving its resistance. Microstructure micro hardness anodic film samples were aid optical metallurgical microscope automated testing machine. Linear polarization methods used assess behaviour in 0.5M HCl. The microstructure annealed sample showed formation den...