摘要
采用真空自耗电弧熔炼方法成功地研制了原位生成的稀土钕氧化物颗粒增强钛基复合材料。利用光学显微镜观察分析了显微组织。测试了材料的拉伸、热稳定性、持久和蠕变等力学性能。试验结果表明 ,稀土钕氧化物颗粒在基体上分布比较均匀 ,并在高温下具有良好的热稳定性。经过 10 3 0℃ /0 .5h/AC + 80 0℃ /1h/AC + 70 0℃ /2h/AC处理后的钕氧化物颗粒增强钛基复合材料棒材具有良好的拉伸、持久。
In-situ neodymia particulate reinforced titanium matrix composites were developed by vacuum arc remelting. The microstructures of neodymia particulate reinforced titanium matrix composites were observed by optical microscopy. The mechanical properties of neodymia particulate reinforced titanium matrix composites were tested. The results show that the neodymia particulates are homogeneously distributed in the matrix, and have good thermal stability at high temperature. The neodymia particulate reinforced titanium matrix composites after heat treatment for 1030 ℃/0.5 h/AC+800 ℃/1 h/AC+700 ℃/2 h/AC have good mechanical properties, such as tension, creep rupture, creep and thermal stability.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2005年第1期16-19,共4页
Chinese Journal of Rare Metals
关键词
钛基复合材料
显微组织
性能
titanium matrix composite
microstructure
mechanical property
