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用激光快速熔凝法向金属表层加入稀土，结果表明激光处理能够把较多的稀土加入到钢的表层；钢表层中的过他和稀土除和氧、硫作用外，还可固溶于晶内、晶界或其附近，甚至能形成金属间化合物RE2Fe17；经过稀土和激光复合处理的表面具有较高的耐腐蚀性能。
Laser rapid fusion method to the metal surface by adding rare earth, the results show that the laser treatment can be more rare earth added to the surface of the steel; the steel surface of he and rare earth addition and oxygen, sulfur role, but also solid solution in the crystal The intergranular and intergranular boundaries can even form the intermetallic compound RE2Fe17. The surface treated with rare earth and laser has higher corrosion resistance.