WC含量对Fe-1.5Cu-1.8Ni-0.5Mo-1C粉末冶金复合材料的孔隙形貌与性能的影响  

Effects of WC Content on Pore Morphology and Properties of Fe-1.5Cu-1.8Ni-0.5Mo-1C PM Composite

作　　者：叶旋[1] 涂华锦[1] 邱志文[1] 秦岭 高学敏 YE Xuan;TU Huajin;QIU Zhiwen;QIN Ling;GAO Xuemin(Coll egeof Mechanical and Electrical Engineering,Heyuan Polytechnic,Heyuan 517000,China;R&D Department,Heyuan Peak Metal Products Co.,Ltd.,Heyuan 517000,China)

机构地区：[1]河源职业技术学院机电工程学院,广东河源517000 [2]河源市山峰金属制品有限公司研发部,广东河源517000

出　　处：《热加工工艺》2019年第22期89-93,共5页Hot Working Technology

基　　金：广东省高等职业教育特色专业建设计划第一批立项项目(0035306);河源职业技术学院校级科研课题项目(2017KJ04)

摘　　要：在Fe-1.5Cu-1.8Ni-0.5Mo-lC粉末中添加了WC颗粒,采用常规混粉与烧结工艺,制备了WC含量分别为0%、5%、10%、15%、20%的Fe基复合材料,观察了材料的显微孔隙形貌,测试了材料的密度、硬度与抗弯强度等性能。结果表明,制备WC颗粒增强Fe基粉末冶金复合材料时,需控制好WC的含量。5%的WC含量对Fe-l.5Cu-l.8Ni-0.5MO-1C烧结复合材料的性能有利,其综合性能较佳,硬度为95.3 HRB,抗弯强度为1031.3 MPa;WC可有效减少组织的细小孔隙,但易形成粉末团聚,且过多的WC对基体材料形成割裂效应,降低材料性能。WC particles were added to Fe-1.5Cu-1.8Ni-0.5Mo-lC powder, and the Fe matrix composites with WCcontent of 0% and 10% and 15% respectively were prepared by conventional powder mixing and sintering process. Themicropore morphology of the material was observed, and the density, hardness and bending strength of the material weretested. The results show that, the content of WC particle reinforced Fe matrix powder metallurgy composite should becontrolled when it is prepared. The 5% WC content is beneficial to the properties of Fe-1.5Cu-1.8Ni-0.5Mo-lC sinteredcomposites, its comprehensive properties are better, its hardness is 95.3 HRB, and its bending strength is 1031.3 MPa. WC caneffectively reduce the fine pores of the microstructure, but it is easy to form powder agglomeration. And too much WC has theeffect of splitting the matrix material and reducing the properties of the material.

关 键 词：WC含量 颗粒增强 FE基复合材料 粉末冶金 

分 类 号：TB333[一般工业技术—材料科学与工程]