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SiC涂层对高温气冷堆用石墨摩擦磨损性能的影响
引用本文:付志强,唐春和,梁彤祥,李自强.SiC涂层对高温气冷堆用石墨摩擦磨损性能的影响[J].金属热处理,2005,30(9):13-16.
作者姓名:付志强  唐春和  梁彤祥  李自强
作者单位:清华大学,核能技术设计研究院,北京,100084
摘    要:利用MM-200磨损试验机对高温气冷堆反射层用石墨(IG11)及HTR-10高温气冷堆燃料元件基体石墨(MG)的摩擦磨损性能进行了研究。结果发现,摩擦系数随载荷增加而逐渐减小,两种石墨的摩擦系数基本相同。石墨的磨损速率随载荷增加而增大,石墨IG11的耐磨性优于MG的。利用气相反应扩散法在石墨基体上涂覆SiC涂层后可以明显改善其耐磨性,且随着涂覆温度的升高改善效果更为明显;低温涂覆SiC涂层后IG11的耐磨性优于MG的,高温涂覆SiC涂层后MG的耐磨性优于IG11的。

关 键 词:高温气冷堆  石墨  摩擦磨损性能  SiC涂层
文章编号:0254-6051(2005)09-0013-04
收稿时间:2005-03-31
修稿时间:2005-03-31

Influence of SiC Coatings on the Tribological Behaviors of Graphite for High Temperature Gas-Cooled Reactor
FU Zhi-qiang,TANG Chun-he,LIANG Tong-xiang,LI Zi-qiang.Influence of SiC Coatings on the Tribological Behaviors of Graphite for High Temperature Gas-Cooled Reactor[J].Heat Treatment of Metals,2005,30(9):13-16.
Authors:FU Zhi-qiang  TANG Chun-he  LIANG Tong-xiang  LI Zi-qiang
Abstract:The tribological behaviors of graphite(IG11) for reflector of high temperature gas-cooled reactor and matrix graphite(MG) for fuel element of high temperature gas-cooled reactor were studied with MM-200 wear test machine.The friction coefficients of graphite decrease with increasing the load,and the friction coefficients of two kinds graphite are similar.The wear rate of graphite increases with the load,and the wear rate of IG11 is lower than that of MG.The wear resistance of graphite can be obviously improved through deposition of SiC coatings on its surface with gas reaction diffusion.The wear resistance of IG11 is better than that of MG after low temperalure deposition of SiC,while the wear resistance of MG is better than that of IG11 after high temperature deposition of SiC.
Keywords:high temperature gas-cooled reactor  graphite  tribological behavior  SiC coatings
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