直写3D打印TiC网络陶瓷/高铬铸铁复合材料的制备及性能研究  

Preparation and Performance Study of TiC Network Ceramic/High Chromium Cast Iron Composite Materials for Direct Write 3D Printing

作　　者：石永亮 刘浩 陈存广 SHI Yong-liang;LIU Hao;CHEN Cun-guang(Department of Materials Engineering,Hebei Vocation University of Industry and Technology,Shijiazhuang 050091,Hebei,China;Advanced Material&Technology Institute,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]河北工业职业技术大学材料工程系,河北石家庄050091 [2]北京科技大学新材料技术研究院,北京100083

出　　处：《铸造》2024年第5期644-649,共6页Foundry

基　　金：河北省教育厅科学技术研究项目资助(QN2023003);河北工业职业技术大学自然预研课题(zy202303)。

摘　　要：采用浆料直写3D打印技术制备了TiC网络陶瓷,并结合无压浸渗制备了TiC网络陶瓷/高铬铸铁复合材料。采用扫描电子显微镜对TiC网络陶瓷预制体与浸渗后的组织进行了观察,采用EDS对界面元素分布进行了分析,并对复合材料的硬度、抗压强度和耐磨性进行了测定。结果表明:复合材料中TiC线条与高铬铸铁线条在空间上形成了三维互穿网络结构,实现了空间韧化的效果,提高了复合材料的整体力学性能;随着复合材料中TiC线条体积分数的增加,硬度随之增加,抗压强度与耐磨性都表现为先增后减,在Ti C体积分数50%时达到最佳值。TiC network ceramics were prepared using slurry direct writing 3D printing technology,and TiC network ceramics/high chromium cast iron composite materials were prepared by pressureless infiltration.Scanning electron microscopy was used to observe the TiC network ceramic preform and the microstructure after infiltration.EDS was used to analyze the distribution of interface elements,and the hardness,compressive strength,and wear resistance of the composite material were measured.The results showed that the TiC lines and high chromium cast iron lines in the composite material formed a three-dimensional interpenetrating network structure in space,achieving the effect of spatial toughening and improving the overall mechanical properties of the composite material.As the volume fraction of TiC lines in the composite material increased,the hardness increased,and the compressive strength and wear resistance both increased first and then decreased,reaching the optimal value at 50%TiC volume fraction.

关 键 词：Ti C网络陶瓷 直写3D打印 高铬铸铁 无压浸渗 耐磨性 

分 类 号：TB333[一般工业技术—材料科学与工程]