Ni/W/C粉等离子原位冶金生成粗晶碳化钨复合材料的性能
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摘要
以Ni/W/C为粉末原料用等离子原位冶金法制备了大颗粒WC合金球钉增强Q345耐磨钢板,用扫描电镜(SEM)、电子探针(EMPA)、X射线衍射仪(XRD)、显微硬度计等对球钉的组织成分、物相组成以及显微硬度进行表征,研究了这种大颗粒碳化钨复合材料的性能。结果表明:对于不同的粉末比例,40%Ni含量的球钉表面成型光亮、致密,与基体板的结合力强,内部的WC大颗粒分布均匀,其平均尺寸约为80μm,最大尺寸约为100μm,基体相为(Fe,Ni),还有网格状的Ni17W3和(Fe,Ni)共晶组织。球钉的平均显微硬度为1183.517HV0.1,大颗粒WC的显微硬度最大值为2078HV0.1。
Ball- studs with coarse grained WC were prepared on Q345 steel plateby in- situ plasma metallurgy method with powder mixtures of Ni/W/C as raw material on. The microstructure, composition,phase constituent and microhardness of the ball- studs were characterized by means of SEM, EMPA,XRD and microhardness tester. The results show that among others, the powder mixture with 40% Ni could produce the most desirable ball-studs with brighter surface, higher compactness and stronger adhesive to the substrate; coarse granules of WC with an average size ca 80μm evenly distributed in the inner portion of the ball-stud matrix of(Fe,Ni); meanwhile, the network-pattern eutectic structure of Ni17W3and(Fe, Ni) can be detected. The average microhardness of ball-stud is 1183.517HV0.1, while the microhardness of the coarse grain of WC is 2078HV0.1.
Ball- studs with coarse grained WC were prepared on Q345 steel plateby in- situ plasma metallurgy method with powder mixtures of Ni/W/C as raw material on. The microstructure, composition,phase constituent and microhardness of the ball- studs were characterized by means of SEM, EMPA,XRD and microhardness tester. The results show that among others, the powder mixture with 40% Ni could produce the most desirable ball-studs with brighter surface, higher compactness and stronger adhesive to the substrate; coarse granules of WC with an average size ca 80μm evenly distributed in the inner portion of the ball-stud matrix of(Fe,Ni); meanwhile, the network-pattern eutectic structure of Ni17W3and(Fe, Ni) can be detected. The average microhardness of ball-stud is 1183.517HV0.1, while the microhardness of the coarse grain of WC is 2078HV0.1.
引文
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[15]D.V.Suetin,I.R.Shein,A.L.Ivanovskii.Structure electronic and magnetic properties ofηcarbides(Fe3W3C,Fe6W6C,Co3W3C,Co6W6C)from first principles calculations[J].Physica B,2009,404:3545
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[3]Wang S F.Study of tungsten carbide composite produced by in-situ metallurgy[D].Qingdao:Shandong University of Science and Technology,2011(王淑峰.原位冶金碳化钨复合材料研究[D].青岛:山东科技大学,2011)
[4]Yu J M,Xiao Y Z,Wang Q J,et al.New development of technology of clad metal[J].Chinese Journal of Materials Research,2000,14(1):12(于九明,孝云祯,王群骄等.金属层状复合技术及其新进展[J].材料研究学报,2000,14(1):12)
[5]Huang H K,Li Z L,Shan Q,et al.Interface remelting of tungsten carbide particles reinforced steel composite[J].Chinese Journal of Materials Research,2014,28(3):191(黄浩科,李祖来,山泉等.碳化钨/钢基复合材料的界面重熔[J].材料研究学报,2014,28(3):191)
[6]Wang L,Hu S B,Shan W T,et al.Microstructure and wear resistance of laser cladding Ni Cr Mn-WC composite coatings[J].The Chinese Journal of Nonferrous Metals,2014,24(1):149(王璐,胡树兵,单炜涛等.激光熔覆Ni Cr Mn-WC复合涂层的组织与耐磨性[J].中国有色金属学报,2014,24(1):149)
[7]Li Z L,Jiang Y H,Zhou R,et al.Thermo-physical characteristics of WC particle-reinforced steel substrate surface composites[J].Chinese Journal of Materials Research,2014,28(8):622(李祖来,蒋业华,周荣等.碳化钨颗粒增强钢基表层复合材料的热物理特性[J].材料研究学报,2014,28(8):622)
[8]Wang W G,Zhang H J,Wang Q Z,et al.Effects of carbide inhibitor on microstructures and mechanical properties of ultrafine grained carbide cement WC-2.5Ti C-10Co[J].Chinese Journal of Materials Research,2015,29(12):883(王文广,张贺佳,王全兆等.碳化物抑制剂对WC-2.5Ti C-10Co超细晶硬质合金微观组织及力学性能的影响[J].材料研究学报,2015,29(12):883)
[9]R.Furushima,K.Katou,K.Shimojima,et al.Control of WC grain sizes and mechanical properties in WC-Fe Al composite fabricated from vacuum sintering technique[J].International Journal of Refractory Metals and Hard Materials,2015,(50):17
[10]Bai Y L,Wu C H,Yang X,et al.Coarsen grain WC-Co cemented carbide fabricated by nanometer powder dissolution method[J].Materials Science and Engineering of Powder Metallurgy,2012,17(4):502(白英龙,吴冲浒,杨霞等.纳米粉末溶解法制备粗晶WC-Co硬质合金[J].粉末冶金材料科学与工程,2012,17(4):502)
[11]Wang Q.Microstructure performance and abrasive wear behaviour of metal tungsten carbide coatings deposited by HVOF and oxygen-acetylene flame spray and fuse[D].Changsha:Hunan University,2011(王群.热喷涂(焊)金属WC涂层组织、性能及抗磨粒磨损行为研究[D].长沙:湖南大学,2011)
[12]Lu J B,Wang Z X,Xi Y J.Study on Ni Cr BSi steel PWC composite coating prepared by plasma cladding on Q235 steel[J].Transactions of Materials and Heat Treatment,2009,30(4):142(卢金斌,王志新,席艳君.Q235钢等离子熔覆添加碳化钨铁基合金涂层的研究[J].材料热处理学报,2009,30(4):142)
[13]Li F Q,Chen Y B,Li L Q.Microstructure and wear property of surface modification layer produced by laser melt injection WC on Q235 steel[J].Transactions of the China Welding Institution,2010,31(4):32(李福泉,陈彦宾,李俐群.Q235钢表面激光熔注WC涂层的微观组织及耐磨性[J].焊接学报,2010,31(4):32)
[14]Chi J,Li H Q,Wang S F,et al.Coarse-grain bulk WC composites prepared by direct current arc in-situ metallurgy[J].The Chinese Journal of Nonferrous Metals,2013,23(5):1263(迟静,李惠琪,王淑峰等.直流电弧原位冶金制备粗晶碳化钨块体复合材料[J].中国有色金属学报,2013,23(5):1263)
[15]D.V.Suetin,I.R.Shein,A.L.Ivanovskii.Structure electronic and magnetic properties ofηcarbides(Fe3W3C,Fe6W6C,Co3W3C,Co6W6C)from first principles calculations[J].Physica B,2009,404:3545