消失模法铸渗表面合金层组织研究  

Microstructures of surface alloying layer prepared by evaporable pattern casting process

作　　者：袁中岳[1] 张忠明[1] 李朝升[2] 林尤栋[1] 

机构地区：[1]西安理工大学材料科学与工程学院,西安710048 [2]中国科学院合肥固体物理研究所,合肥230031

出　　处：《兵器材料科学与工程》2002年第4期36-39,共4页Ordnance Material Science and Engineering

基　　金：陕西省教委科研基金 ( 99JK2 2 3)

摘　　要：利用消失模铸造法制备了表面耐磨合金材料 ,并研究了其组织与性能。结果表明铸渗合金层由表向内 ,碳化物类型由M7C3型向M3C型转变 ,硬度逐渐降低 ,碳化物含量逐渐减少 ;热处理后 ,碳化物含量和材料硬度增加 。Wear-resistant alloying layers were prepared on the surfaces of castings by using Evaporable Pattern Casting process, the microstructures and properties of the layers were also investigated. The results show that from the outside to inside of the alloying layers, the carbide type transforms from M 7C 3 to M 3C, and the carbide content and the hardness of them decrease gradually; after being heat-treated, the carbide content and the hardness of the alloying layers increase, while the phenomena that the carbide type changes and the carbide content and the hardness of the layers decrease gradually remain unchanged.

关 键 词：复合材料 铸渗表面合金化 消失模铸造 组织 

分 类 号：TG174.445[金属学及工艺—金属表面处理]