Coating with high erosion resistance, cavitation resistance and corrosion resistance

The invention belongs to the field of mechanical abrasion protection, and particularly relates to a high-erosion-cavitation-corrosion-resistant coating. The coating with high erosion-cavitation-corrosion resistance is a laser cladding coating formed by carrying out laser cladding on Fe90, Ti powder and Cr3C2, the total mass of the Ti powder and the Cr3C2 is 20-100% of the mass of the Fe90, and the Ti powder and the Cr3C2 generate a TiC hard phase in situ in the laser cladding process. According to the high-erosion-cavitation-corrosion-resistant coating, Cr3C2 serves as a C source in an in-situ synthesis reaction and reacts with Ti powder to generate a TiC hard phase, meanwhile, a corrosion-resistant element Cr can be supplemented into the coating, the obtained coating has the erosion-cavitation-corrosion-resistant effect, and the service life of a hydraulic machinery flow passage component is prolonged. 本发明属于机械磨蚀防护领域，具体涉及一种高抗冲蚀-空蚀-腐蚀涂层。该高抗冲蚀-空蚀-腐蚀涂层为Fe90、Ti粉和Cr3C2通过激光熔覆形成的激光熔覆涂层；所述Ti粉和Cr3C2的总质量为Fe90质量的20～100％