Microstructure and Mechanical Properties of Ti-Al Based Composites
Microstructure and Mechanical Properties of Ti-Al Based Composites
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Ti-Al基复合材料的显微组织和力学性能
DOI：
10.2497/jjspm.41.514
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
K. Niihara
中科院分区：
文献类型：
--
作者：
A. Nakahira;H. Tamada;K. Niihara
以Ti/Al=70/30at%的混合粉末为原料，以SiC和B_4C为第二相，采用热压工艺成功制备了陶瓷颗粒弥散Ti-Al金属间化合物复合材料。热压过程中，Ti-Al金属间化合物与陶瓷颗粒之间发生了少量反应。显微组织观察表明，反应相和第二相均均匀地弥散分布在Ti-Al基体中。这些陶瓷分散体提高了其硬度和强度等机械性能。讨论了陶瓷颗粒增强Ti-Al基复合材料的力学性能与显微组织的关系。
Ceramic particulate dispersed Ti-Al intermetalic compound composites were successfuly fabricated by hot-pressing the mixtures of Ti and Al (Ti/Al=70/30at%) powders with fine ceramic particulates, SiC and B4C, as the second phases. There were a little reactions between the Ti-Al intermetalic compound and ceramic particulate during the hot-pressing. The microstructure observations showed that both reaction phases and second phases were homogeneously dispersed in the Ti-Al matrix. Their mechanical properties on the hardness and strength were improved by these ceramic dispersions. The relationship between mechanical properties and microstructure was discussed for these ceramic particulate reinforced Ti-Al based composites.