钒对金刚石工具新型铜基结合剂组织和性能的影响  

Effects of element V on the properties and microstructure of the new copper-matrix bond for diamond tools

作　　者：吴颖[1] 朱曾涛 

机构地区：[1]四川文理学院物理与机电工程学院,四川达州635000 [2]达州市经济和信息化委员会,四川达州635000

出　　处：《云南民族大学学报（自然科学版）》2016年第4期322-324,共3页Journal of Yunnan Minzu University:Natural Sciences Edition

基　　金：四川文理学院科研项目(2014Z006Y)

摘　　要：通过抗弯强度测试、显微硬度和扫描电镜研究新型铜基结合剂CSF中添加V元素后组织和性能的影响.结果表明:强碳化物形成元素V可与金刚石发生界面反应,富集于金刚石表面,当V质量分数低于4%时,可通过固溶强化显著提升胎体的硬度以及胎体对金刚石的把持力,且把持力随着V的增加而增加;当V质量分数超过4%时,胎体组织不均匀,性能降低,对金刚石的把持力下降.The effects of element V on the microstructure and properties of the new copper - matrix bond were studiedthrough the flexural strength test, micro - hardness and scanning electron microscope. The results showed that thestrong carbide - forming element V can promote the metallurgical reaction between matrix and diamond, which gatheredin the surface of diamond. When the content of element V is lower than 4% , the hardness and flexural strengthof the matrix could be significantly improved due to the effect of solid - solution strengthening, and the holding forceincreased with the increasing content of V. When the content of V exceeded 4% , the binder, s sintering performancewas poor, whose microstructure was not uniform, and whose mechanical properties and holding force were reduced.

关 键 词：强碳化物形成元素 金刚石 铜基结合剂 显微组织 把持力 

分 类 号：TQ164[化学工程—高温制品工业] TG74[金属学及工艺—刀具与模具]