TiC粒度对消失模铸造高铬铸铁力学性能的影响  

Effect of TiC Particle Size on Mechanical Properties of High Chromium Cast Iron in Lost Foam Casting

作　　者：张效溥 王振兴 于延龙 邢振国 谭建波[1,2] ZHANG Xiaopu;WANG Zhenxing;YU Yanlong;XING Zhenguo;TAN Jianbo(School of Materials Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Hebei Key Laboratory of Material Near-net Forming Technology,Shijiazhuang 050018,China;Shijiazhuang Industrial Pump Factory Co.,Ltd.,Shijiazhuang 050100,China;Handan Huiqiao Composite Material Technology Co.,Ltd.,Handan 056700,China)

机构地区：[1]河北科技大学材料科学与工程学院,河北石家庄050018 [2]河北省材料近净成形技术重点实验室,河北石家庄050018 [3]石家庄工业泵厂有限公司,河北石家庄050100 [4]邯郸慧桥复合材料科技有限公司,河北邯郸056700

出　　处：《热加工工艺》2022年第18期68-71,75,共5页Hot Working Technology

基　　金：河北省重点研发计划项目(18211021D)。

摘　　要：以TiC为增强颗粒,高铬铸铁为基体,采用消失模铸造技术制备了TiC_(p)/Fe试块及某渣浆泵后护板,研究了颗粒粒度对TiC_(p)/Fe试块及渣浆泵后护板的硬度、相对耐磨性、冲击韧性的影响。结果表明:当加入增强颗粒为1500目时,后护板硬度提升55.4%,相对耐磨性为基体的1.80倍,冲击韧性为基体的1.89倍,加入增强颗粒后其断裂方式由脆性断裂转变为块状断裂。研究结果可为消失模铸造TiC_(p)/Fe复合材料生产应用提供参考。Taking TiC as reinforcing particle and high chromium cast iron as matrix,the TiC_(p)/Fe test block and the back plate of a slurry pump were prepared by disappearing die casting technology,and the effects of particle size on hardness,relative wear resistance and impact toughness of TiC_(p)/Fe test block and back plate of slurry pump were studied.The results show that when the reinforcement particles are added to 1500 mesh,the hardness of the rear guard plate is increased by 55.4%,the relative wear resistance is 1.80 times of the matrix,and the impact toughness is 1.89 times of the matrix.The fracture mode of the reinforced particles changes from brittle fracture to massive fracture.The research results can provide reference for the production and application of TiC_(p)/Fe composites in lost foam casting.

关 键 词：消失模铸造 高铬铸铁 复合材料 TIC 耐磨性 

分 类 号：TB333.11[一般工业技术—材料科学与工程]