ZrO_2-Al_2O_3蜂窝陶瓷/高铬铸铁复合工艺的研究  

Preparation of ZrO_2-Al_2O_3 Honeycomb Ceramic Reinforced High Cr Cast Iron Matrix Composites by Composite Processing

作　　者：孙玉福[1] 吴娜[1] 赵靖宇[1] 徐栩[1] 王刘利[1] 杨会龙[1] 

机构地区：[1]郑州大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2011年第1期11-14,102,共4页Special Casting & Nonferrous Alloys

摘　　要：制备了ZrO2-Al2O3复相蜂窝陶瓷增强高铬铸铁基复合材料,研究了复合工艺对结合界面及性能的影响。结果表明,ZrO2-Al2O3陶瓷表面镀Ni和金属基体中加入活性元素Ti的工艺复合处理的试样界面结合好,综合性能较高;经1050℃淬火+350℃回火处理后,其冲击韧度为5.2J/cm2,界面结合处的显微硬度(HV)为505.7,该复合材料的相对耐磨性为高铬铸铁的2.8倍。ZrO2-Al2O3 honeycomb ceramic reinforced high Cr cast iron matrix composites were prepared by composite processing,and effects of composite processing on bonding interface and its properties were investigated.The results show that the composites exhibit desirable bonding interface and comprehensive performance by composite processing,where ZrO2-Al2O3 ceramic surface is nickelized and metal matrix is added with Ti.Impact toughness of the composites with quenching at 1050℃ and tempering at 350℃ reaches up to 5.2J/cm2,and micro-hardness at interface is 505.7,which improves greatly the relative wear resistance by 2.8 times compared to that of high Cr cast iron.

关 键 词：ZrO2-Al2O3复相蜂窝陶瓷 高铬铸铁 耐磨性 界面 镀层 镀Ni 

分 类 号：TB331[一般工业技术—材料科学与工程]