原位反应TiC颗粒增强铸造Fe-Cr-Ni基复合材料的抗氧化性能研究  

Oxidation Resistance of TiC Particulate Reinforced Casting Fe Cr Ni matrix Composites Prepared by In situ Process

作　　者：惠希东[1,2] 王执福[1,2] 公志光 衣粟[1,2] 陈熙琛 

机构地区：[1]山东工业大学 [2]中国科学院物理研究所

出　　处：《铸造》1997年第5期13-16,共4页Foundry

摘　　要：研究了用原位反应法制备的ＴｉＣ颗粒增强铸造Ｆｅ－２６Ｃｒ－１４Ｎｉ基复合材料在１０００℃和１２００℃下的抗氧化性能。结果表明，ＴｉＣ的存在使复合材料在氧化初期具有短路扩散效应，其氧化动力学曲线符合对数增长规律；氧化膜由棱角多面体状的Ｃｒ２Ｏ３组成，在１０００℃下，复合材料具有理想的氧化膜结构和优良的抗氧化性；温度再提高，氧化物尺寸增大，氧化膜致密度降低；在１２００℃下，复合材料抗氧化性与基体合金相近。The oxidation resistance of TiC particulate reinforced Fe Cr Ni matrix cast composites prepared by in situ process at a temperature of 1000℃ and 1200℃ has been investigated,the results showed that the short path diffussional effect is caused by TiC phase at initial oxiding stage,the cruves for oxiding kinetics of composites agrees with the law of logarithmic growth.The oxide film consists of polyhedron like Cr 2O 3,the composite has a ideal structure of oxide film and excellent oxidation resistance at 1000℃.The compactivity of oxide film decreases and the size of the oxide increases when the oxi ding temperature increases further.But the oxidation resistance of the composites will be close to that of mtrix at 1200℃.

关 键 词：复合材料 氧化膜 原位反应法 碳化硅 

分 类 号：TB33[一般工业技术—材料科学与工程]