The formation of low surface energy hybrid organic-inorganic micro-nanostructured zinc stearate electrodeposit transformed the anodic aluminum oxide (AAO) surface to superhydrophobic, having a water contact angle of 160 ̋. The corrosion current densities of the anodized and aluminum alloy surfaces are found to be 200 and 400 nA/cm2, respectively. In comparison, superhydrophobic anodic aluminum o...

The paper presents several experimental results regarding the influence of various procedures applied to incorporate Ce species in hydrotalcite–type chemical conver­sion coatings on overall corrosion performance for AA 7075 aluminum alloy as a metallic substrate. Two routes were envisaged: (i) incorporation by immersion cerium nitrate solutions and (ii) electrochemical deposition hydro­phobic -...

The effect of ultrasonic shot peening on the environmental hydrogen embrittlement behavior 7075-T6 aluminum alloy is investigated. tensile specimens were treated by for 50 s. Surface residual stress and depth under surface evaluated using an X-ray diffractometer. Then, tested in humid air dry nitrogen gas slow strain rate technique. results showed that shot-peened specimen has a superior resist...

In this study, the plastic anisotropy distribution of an extruded 7075 aluminum alloy thick plate was evaluated through small-cube compression tests. The with a thickness 15 mm divided into five layers in order to verify difference along direction plate. Small-cube specimens side length 1 were extracted from each layer and subjected tests evaluate directional r-values material. applied Hill’s q...

The failure response of aluminum alloys (Al-6061 and Al-7075) under the condition of simultaneously pre-stressing and laser heating was investigated. Specimens were subjected to predetermined preloading states and then irradiated by continuous wave fiber (Yb) laser. For all specimens, it was found that the yield stress decreased with increasing laser power density. This implies that the load-be...