Exploring the mechanisms and characteristics of enhanced anti-corrosion and abrasion resistance of Ni–W coatings reinforced with Mg–Al LDH

Exploring the immense potential of corrosion control in the petroleum and construction industries, significant attention has been devoted to studying the corrosion resistance capabilities of carbon steel materials. In this study, an approach employing composite electrodeposition was utilized to fabricate Ni–W coatings reinforced with varying proportions of Mg–Al LDH nanosheets. The investigation aimed to examine the enhanced corrosion resistance and wear properties of the Ni–W/LDH composite coatings on carbon steel, along with the underlying enhancement mechanisms. The characterization results revealed that the LDH material, owing to its inherent interlayer ion exchange ability and labyrinth effect, remarkably bolstered the ability of the composite coatings to withstand harsh environmental conditions. Simultaneously, as the LDH concentration increases, a noticeable reduction in surface cracks and pore structures of the coating can be observed. Combining the self-lubricating characteristics of LDH materials with the dispersion strengthening and grain refinement effects introduced by the addition of nanoscale lamellar materials, the wear resistance performance of the coating is improved. However, excessive LDH concentration proved detrimental to the integrity of the coatings, thereby establishing an optimal ratio at 1 g/L. This groundbreaking research offers a fresh perspective on the application of Ni–W-based coatings in the realm of corrosion control.