Preparing super-hydrophobic surfaces with additive manufacturing (AM) and multi-step processes improves corrosion resistance of Al alloys. But the incorporation dissimilar metals accelerates matrix corrosion, polymers cannot offer a long-term structural stability, methods are complicated costly. Hereon, stable micro-craters nano-terraces on AA5052 sheet enhanced water repellence durable fabricated via low-cost subtractive (SM) strategy. After fluoridation process, as-fabricated hierarchical...

Aluminum–Lithium (Al–Li) alloys widely used in aerospace manufacture are highly susceptible to corrosion, which limits their industrial applications. Herein, 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES) is as a modifier for low-surface-energy treatment of TiO2 nanoparticles. The water-based polyurethane (PU) made binder achieve tight bonding between modified ceramic particles and Al–Li alloy, thus resulting the extremely-feasible air-spraying preparation superhydrophobic coating with...

A multifunctional aviation aluminum alloy with good superhydrophobicity and corrosion resistance was prepared by a two-step process of etching followed polymer modification. Meanwhile, micro- nanostructures formed on the processed sample. Compared bare sample, static liquid contact angle as-prepared sample increased 100.8°. Further polarization tests showed that potential such increased, current density decreased obviously, thus suggesting modified significantly improved. The same conclusion...

Aluminum alloys are vulnerable to penetrating and peeling failures in seawater preparing a barrier coating isolate the substrate from corrosive medium is an effective anticorrosion method. Inspired by lotus leaves effect, wetting alloy surface with enhanced behavior has been prepared via etch, deposition, low-surface-energy modification. Results indicate that excellent superamphiphobicity achieved after modification of constructed hierarchical labyrinth-like microstructures dendritic...

Corrosion failure is an intractable problem that restricts the application of Al alloys. As a new technique for functional implementation, superhydrophobic fabrication can provide effective method to solve metallic corrosion. This work has developed simple and low‐cost endow 5A05 alloy with superior superhydrophobicity corrosion resistance. The micro‐nano structures have been prepared by facile one‐step immersion process. Furthermore, anticorrosion behaviors as‐prepared investigated wetting...

Abstract Corrosion and wear failures are bottlenecks for restricting applications developments of Al‐based functional materials. As a new lubrication technology, superhydrophobic preparation provides an effective way to settle Al alloy corrosion. The methods alloys mainly multistep strategies. In this study, alloy, has been prepared by efficient one‐step electrochemical etching process. Meanwhile, its micromorphology observed scanning electron microscope. wettability measured video optical...

Piezoelectric ceramics have the advantages of uniform composition, excellent performance, good electromechanical coupling and high cost performance. They are currently one important materials for manufacturing sensors semiconductor components on market. Although piezoelectric ceramic widely used because their many advantages, how to improve properties is still a hot difficult research spot. Previously, were affected by adjusting grain size, but due its limited enhancement effect, researchers...

Corrosion failure is a thorny issue that restricts the applications of Al alloys. As research hotspot in functional realization, hydrophobic fabrication exactly offers an efficient method to settle metallic corrosions. This work has developed facile and low-cost enhance corrosion resistance The micro-nano dendrites have been firstly prepared on substrate using one-step potentiostatic deposition. Then, wetting electrochemical behaviors systematically investigated after stearic acid...

Abstract Rapidly disintegrating alloys with enhanced compressive strengths and corrosion rates are prepared for fracturing parts in petroleum extraction. Extrusion casting is used to prepare Mg– x Zn–Zr by adjusting zinc content. Mechanical electrochemical behaviors investigated evaluate the practicability as decomposable materials. Superficial topographies, compositions, phases, distributions also characterized determine dissociative mechanism. The results make clear that matrixes secondary...

Abrasion failure is a bottleneck problem that restricts the applications of titanium aluminum (TiAl) based alloys. This work has developed facile method to endow TiAl alloys with superior wear resistance. composites reinforced by serpentine materials have been prepared spark plasma sintering (SPS). Microstructural characterizations show well distributed in alloy matrix. Tribological behaviors terms high-temperature friction and tester indicate particles play positive role decreasing rates...

Abstract Developing new‐type alloy materials with excellent decomposition properties and mechanical behaviors is a thorny issue for preparing fracturing balls in oil exploitation. As‐cast Mg– x Zn–Zr alloys designed by regulating Zn contents have been fabricated this study. Compressive strength immersion corrosion test investigated to assess their feasibility as materials. Scanning electron microscopy X‐ray diffract meter also used characterize surface morphologies phase structures...

Reaction between nanometer γ-Al2O3 and H3PO4 to form AlPO4 by hydro-thermal method was studied. The microstructure of the reaction product examined SEM (scanning electronic microscope). phase transformation investigated DSC (differential scanning calorimeter) XRD (X-ray Diffraction). relative dielectric constant dissipation factor different kinds aluminum phosphates were measured. Results study led optimal parameter showed that phosphate is a good matrix make functional ceramic-matrix composites.

Corrosion failure is a thorny problem that restricts the application of Al alloys. As new technique for functional realization, hydrophobic preparation offers an efficient approach to solve corrosion problem. This work has developed facile and low-cost method endow alloy with enhanced water-repellent anticorrosion abilities. The micro-particles have been firstly prepared by one-step deposition process. Furthermore, wetting electrochemical behaviors as-prepared structures investigated after...