固体法稀土硼钒共渗的研究  

Study on Co-Permeation of Solid Rare-Earth Element, Boron and Vanadium

作　　者：陶小克[1] 董桂霞[1] 彭日升[1] 孙永昌[1] 

机构地区：[1]天津理工学院材料科学与工程系,天津300191

出　　处：《中国稀土学报》2001年第2期178-181,共4页Journal of the Chinese Society of Rare Earths

基　　金：天津市自然科学基金资助项目 !(973 60 3 711)

摘　　要：研究了CeCl3对固体粉末法B V共渗的动力学过程、成分、组织和性能的影响。在渗剂中添加CeCl3不仅具有明显的催渗作用 ,使渗入速度提高 40 %以上 ;并且Ce作为组元渗入工件表面后形成CeFe2 新相 ,还使渗层硬度和耐磨性有较大提高。稀土是通过提高渗剂中的硼势和钒势 ,活化渗件表面 。The influence of CeCl 3 on the kinetic process, composition, structure and property of powder B V co permeation was studied. The results indicate that addition of CeCl 3 to permeating agents not only has obvious catalytic effect, which makes permeating speed increase by 40%, but also improves the hardness and abrasives of the permeating layers owing to the formation of new phase of CeFe 2 after Ce, as an alloying ingredient, permeates into the layer of the part. Rare earth element accelerates the permeation of B and V by increasing B and V potentials, activating permeating part′s surface, and deducing the activation energy of diffusion of the B and V atoms.

关 键 词：稀土 硼势 钒势 稀土硼钒共渗 固体法 氯化铈 钢 化学热处理 

分 类 号：TG156.8[金属学及工艺—热处理] TG161[金属学及工艺—金属学]