Salt Spray Corrosion Performances of Amorphous Al-Ti-Ni Coatings

摘要

Arc-sprayed amorphous Al-Ti-Ni coatings on S355 structural steel were processed using a laser remelting. The effects of power on the salt spray corrosion performances of the obtained coatings were investigated using a salt spray corrosion test. The results show that porosity and cracks on the arc-sprayed coatings are significantly eliminated with the increase of power and the laser-remelted coatings are composed of crystal and amorphous phases. The Al-Ti-Ni coating after laser remelting at 1,000 W exhibits the highest corrosion resistance, due to its dense structure.