The results show that the laser surface melting treatment improves greatly the homogenization, compaction and the corrosion resistance of rare earth permeating layer under the condition of test.

• 结果表明,在一定条件下,激光熔凝处理可进一步提高纯铁渗稀土层组织的致密性与均匀性,显著提高稀土渗层的耐蚀性。