| WC溶解对WCp/钢基表层复合材料组织和性能的影响 |
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| 引用本文： | 隋育栋,蒋业华,李祖来,黄汝清.WC溶解对WCp/钢基表层复合材料组织和性能的影响[J].材料热处理学报,2012,33(Z1):7-10. |
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| 作者姓名： | 隋育栋 蒋业华 李祖来 黄汝清 |
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| 作者单位： | 昆明理工大学材料科学与工程学院,云南昆明650093; 云南省先进成形制造工程技术研究中心,云南昆明650093 |
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| 基金项目： | 国家自然科学基金(50871048);云南省应用基金(2008E036M) |
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| 摘 要： | 利用V-EPC法制备了WC颗粒增强钢基表层复合材料.通过金相、扫描电镜、XRD、显微硬度及冲击磨料磨损性能测试等手段重点研究了在预制层中添加镍基自熔合金粉末(Ni6025 WC)后,WC在基体中的溶解对复合材料组织和性能的影响.结果表明,WC在复合层中全]溶解使复合层基体中出现珠光体,残留奥氏体,马氏体以及M6C型碳化物,经分析知该M6C型碳化物为Fe3W3C.本试验得到的试样显微硬度与同类WC/钢基表层复合材料相比显著降低,冲击磨料磨损下的体积磨损率也较高.这些均表明WC在基体中过度溶解和Fe3W3C在基体中的含量较多时,复合材料的性能较差.
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| 关 键 词： | 预制层 钢基表层复合材料 Ni6025WC V-EPC |
Effects of WC dissolute in matrix on microstructure and properties of WC reinforced steel composite |
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| SUI Yu-dong,JIANG Ye-hua,LI Zu-lai,HUANG Ru-qing.Effects of WC dissolute in matrix on microstructure and properties of WC reinforced steel composite[J].Transactions of Materials and Heat Treatment,2012,33(Z1):7-10. |
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| Authors: | SUI Yu-dong JIANG Ye-hua LI Zu-lai HUANG Ru-qing |
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| Affiliation: | 1,2(1.Institute of Materials Science and Engineering,Kunming University of Science and Technology, Kunming 650093,China;2.Research Center for Advanced Materials Processing of Yunan Province,Kunming 650093,China) |
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| Abstract: | The WC reinforced steel composite was prepared by V-EPC.The effects of Ni6025WC adding on structure and properties of composite were studied by OM,SEM,XRD,micro-hardness and impact abrasive wear test.The simulated results show that the WC dissolution may cause pearlite,residual austenite,martensite and M6C type carbides appeared in matrix.According to analysis,M6C type carbides was Fe3W3C.Compared with other WC reinforced steel composite,micro-hardness reduced and wear rate rose.When WC dissolution and more Fe3W3C in matrix,composite has a poor resistance. |
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| Keywords: | perform layer steel matrix surface composites Ni6025WC V-EPC |
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