ZTA颗粒增强高铬铸铁基复合材料制备及磨损性能研究  

Preparation and Wear Properties of ZTA Particle Reinforced High Chromium Cast Iron Matrix Composites

作　　者：孙书刚 钱兵 李小武 倪红军[2] 朱昱[2] SUN Shugang;QIAN Bing;LI Xiaowu;NI Hongjun;ZHU Yu(Nantong Gaoxin Antiwear Technology Co.,Ltd.,Nantong 226011,China;School of Mechanical Engineering,Nantong Univesity,Nantong 226019,China)

机构地区：[1]南通高欣耐磨科技股份有限公司,江苏南通226011 [2]南通大学机械工程学院,江苏南通226019

出　　处：《铸造技术》2018年第8期1663-1666,共4页Foundry Technology

基　　金：江苏省重点研发计划项目(项目编号:BE2016107)

摘　　要：将粒度为-10+16目的 ZTA(Zr O2增韧Al2O3)颗粒表面进行合金化处理后,与自制粘结剂按照一定的比例混合、成型、烧结,获得蜂窝状陶瓷预制件;然后,浇注高铬铸铁铸渗预制件,制备出ZTA陶瓷颗粒增强高铬铸铁基复合材料。结果表明,复合材料中ZTA陶瓷颗粒与高铬铸铁基体界面结合致密,无气孔、夹杂、裂纹等缺陷;在环块三体磨料磨损条件下,复合材料耐磨性能为高铬铸铁基材的4.85倍。将该材料制备的陶瓷金属复合磨辊及衬板投入电厂使用,用户反应良好。The surface of ZTA （ZrO2 toughened A1203） particle with particle size of-10＋16 was alloying treated, mixing, forming and sintering with self-made binder in a certain proportion to obtain honeycomb ceramic prefabricated parts; Then, ZTA ceramic granule reinforced high chromium cast iron matrix composites were prepared by casting high chromium cast iron infiltration precast parts. The results show that ZTA ceramic particles in the composite have dense interface with high chromium cast iron matrix, no porosity, inclusions, cracks and other defects. Under the wear condition of ring block tri-body abrasive, the abrasion resistance of composite materials is 4.85 times of that of high chromium cast iron. The ceramic-metal composite grinding roller and lining plate prepared by the materials are put into use in power plant, and the user responded well.

关 键 词：负压铸渗 ZTA 高铬铸铁 磨粒磨损 

分 类 号：TB331[一般工业技术—材料科学与工程] TG115[金属学及工艺—物理冶金]