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Cu/Mo双涂层改性SiCf/Ti6Al4V复合材料的界面与性能
基金项目:

国家自然科学基金 (50871086, 51071122);航空基金 (2009ZF53062);中国博士后科学基金 (20090451393)


Interface and Properties of Cu/Mo Duplex-Coated SiC Fiber-Reinforced
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    摘要:

    采用箔-纤维-箔 (FFF) 法分别制备无涂层、C涂层和Cu/Mo双涂层改性的SiCf/Ti6Al4V复合材料,对制备态复合材料的力学性能和界面微观组织进行对比分析,进一步研究不同真空热暴露处理对Cu/Mo双涂层改性复合材料的界面微区的影响规律。结果表明,制备态下Cu/Mo涂层比C涂层较好地改善了复合材料的界面组织和性能,且对基体和纤维中元素扩散均具有一定的阻挡作用;求得900 ℃下SiCf/Cu/Mo/Ti6Al4V界面反应的生长动力学公式为H=1.380t1/2+ 5.397

    Abstract:

    Foil-Fiber-Foil (FFF) method was used to prepare Ti6Al4V-matrix composites reinforced by SiC fibers without coating, with C coating and Cu/Mo duplex coatings, respectively. The mechanical properties as well as interfacial microstructure of the as-prepared composites were compared. Moreover, the interfacial reaction characteristics of the SiCf/Cu/Mo/Ti6Al4V composites were also investigated by different vacuum heat treatments. The results show that for as-prepared samples, Cu/Mo coating is better than C-coating to improve the interfacial microstructure and properties of titanium matrix composites; the growth kinetic expression of the SiCf/Cu/Mo/Ti6Al4V interfacial reaction at 900 ℃ is H=1.380t1/2+5.397

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薛春岭,杨延清,罗 贤,孙 庆,张 伟,代志强. Cu/Mo双涂层改性SiCf/Ti6Al4V复合材料的界面与性能[J].稀有金属材料与工程,2012,41(4):653~657.[Xue Chunling, Yang Yanqing, Luo Xian, Sun Qing, Zhang Wei, Dai Zhiqiang. Interface and Properties of Cu/Mo Duplex-Coated SiC Fiber-Reinforced[J]. Rare Metal Materials and Engineering,2012,41(4):653~657.]
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  • 收稿日期:2011-04-08