稀土元素及其化合物以其独特的理化特性被广泛用于材料科学领域。作为化学热处理的重要催渗剂、共渗剂的研究与应用也有十余年的历史，其中作为渗硼过程的催渗剂、共渗剂的研究就是重要的内容之一。稀土在我国的储量丰富，约占世界总储量的2／3左右，充分利用这一资源，发挥其 Rare earth elements and their compounds are widely used in the field of material science due to their unique physical and chemical properties. As an important catalyst for chemical heat treatment, the research and application of the infiltrating agent has more than ten years of history. As one of the important contents, the research on the infiltrating agent and the infiltrating agent as the boronizing process. Rare earth in our country is rich in reserves, accounting for about 2/3 of the world total reserves, make full use of this resource, to play its