<p>This study utilized laser-cladding technology to fabricate Fe-Cr-C-P amorphous coatings using water-atomized powders. The study investigated the microstructure, properties, and the correlation between process parameters and amorphous formation of coatings prepared using water-atomized amorphous powders. The Fe-Cr-C-P powder produced by water-atomization technology exhibits a high amorphous content; however, the amorphous powder particles display non-uniform sizes, along with poor sphericity and flowability. The phase composition of the coating is mainly α-Fe, (Cr, Fe)₂₃C₆, Fe₃P, and amorphous phase. Under the strengthening of amorphous and hard phases, the hardness of the cladding layer is much higher than that of the substrate. The 1.2-kW, 50-mm/s cladding layer has higher amorphous content, which significantly enhanced corrosion resistance. The 1.2-kW, 10-mm/s cladding layer has corrosion cracks and penetrating cracks, and the corrosion resistance is the worst.</p>