Passivation behavior and surface chemistry of 2507 super duplex stainless steel in artificial seawater: Influence of dissolved oxygen and pH

Influence of inclusions on initiation of pitting corrosion and stress corrosion cracking of X70 steel in near-neutral pH environment

In-situ intercalation of 8-hydroxyquinoline in Mg-Al LDH coating to improve the corrosion resistance of AZ31

Duplex coating combining layered double hydroxide and 8-quinolinol layers on Mg alloy for corrosion protection

Effect of alloyed Sr on the microstructure and corrosion behavior of biodegradable Mg-Zn-Mn alloy in Hanks’ solution

Electrochemical corrosion, hydrogen permeation and stress corrosion cracking behavior of E690 steel in thiosulfate-containing artificial seawater

Corrosion behavior of AZ31 magnesium alloy in the chloride solution containing ammonium nitrate

The practical applications of superhydrophobic materials are still limited due to the fragile micro-nano scale rough structures. Here a novel preparation method based on a new roughness-regeneration model is reported to fabricate durable and non-fluorinated superhydrophobic materials, through combining organosilicon functionalized Al2O3 (SiF–Al2O3) microparticles and low-cost bakelite powder (solid-resin). The effect of the blend ratio of SiF–Al2O3/solid-resin on superhydrophobic properties of composite material was investigated in this paper. The material surface can retain superhydrophobicity after a series of rigorous durability testing, such as broken area test, sandstorm test, sandpaper abrasion test, knife scratch test and cold-resistant test. Even if the fine sandpaper (5000 Cw) is applied, a higher surface roughness can still be maintained (Sa = 2.1 μm) and the superhydrophobicity (WCA = 151°) of the surface is reserved.

Fabrication of durable and roughness-regeneration superhydrophobic composite materials by hot pressing

Effect of extrusion on the microstructure and corrosion behavior of Mg-Zn-Mn-(0, 1.5)Sr alloys in Hank’s solution

A novel polysiloxane (PSO) coating, which is synthesized by pre-hydrolysis/condensation of different types of siloxane monomers in the presence of catalyst through a two-step acidification technique, is developed in this work to explore its potential use for corrosion protection of AZ31 magnesium alloy. Basic physical properties such as curing speed, water contact angle, hardness, and adhesion on the substrate were examined. The results show that the PSO coating can be cured at room temperature with superior pencil hardness and adhesion grade, without necessity of chemical pre-treatment of the magnesium surface. The coating with the intermediate thickness exhibits homogeneous surface morphology, higher contact angle, and better corrosion resistance, attributed to the fine three-dimensional structural crystalline coating formed after reacting between PSO and water vapor. Moreover, it maintains the mechanical properties and protection ability after weathering test for 28 days. It is believed that this facile and environmental-friendly method offers an effective strategy for promising applications for protection of magnesium alloys.

Facile fabrication of hydrophobic polysiloxane coatings for protection of AZ31 magnesium alloy

Li Lei

Papers

Electrochemical corrosion, hydrogen permeation and stress corrosion cracking behavior of E690 steel in thiosulfate-containing artificial seawater

Corrosion behavior of AZ31 magnesium alloy in the chloride solution containing ammonium nitrate

Fabrication of durable and roughness-regeneration superhydrophobic composite materials by hot pressing

Effect of extrusion on the microstructure and corrosion behavior of Mg-Zn-Mn-(0, 1.5)Sr alloys in Hank’s solution

Facile fabrication of hydrophobic polysiloxane coatings for protection of AZ31 magnesium alloy