TiCN复合粉及Mo添加剂对铁基复合材料组织和性能的影响  

Effect of TiCN and Mo addition on microstructure and mechanical properties of iron matrix composites

作　　者：陈敏[1] 汤爱涛[1] 刘胜明[1] 赵子鹏[1] 王健[1] 刘传璞[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044

出　　处：《功能材料》2013年第23期3378-3382,3387,共6页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2008AA031101);中央高校基本科研业务费资助项目(CDJXS10131161)

摘　　要：以成本低廉的钛铁矿经还原后得到的含Fe的碳氮化钛(TiCN)复合粉为增强相原料制备了铁基复合材料。结合金相组织观察、SEM和EDS分析以及力学性能测试研究了复合粉添加量对铁基复合材料组织和性能的影响,进一步研究了Mo的添加对铁基复合材料组织与性能的影响。结果表明,复合粉的添加量为40%(质量分数)时制备的复合材料综合性能较好。复合材料中添加少量的Mo后增强相颗粒的平均尺寸减小,综合性能得到了提高。In this paper, the iron matrix composites were prepared using titanium carbonitride composite powder as the reinforcement which was obtained via carbothermic reduction of ilmenite with low cost. The effect of composite powder contents on the microstructure and properties of iron matrix composites was studied with metallographic observation, SEM,EDS and mechanical properties testing. The effect of Mo addition on the microstructure and properties of iron matrix composites was further studied. It was shown that the iron matrix composites had better performance when the content of composite powder was 40wt%. With small amount of Mo addition, the average particle size of enhancement decreased and mechanical properties were improved.

关 键 词：复合粉 铁基复合材料 MO 组织 硬度 抗弯强度 

分 类 号：TB331[一般工业技术—材料科学与工程]