| Ti-Al-TiO2体系合成产物的结构及力学性能研究 |
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| 引用本文： | 艾桃桃.Ti-Al-TiO2体系合成产物的结构及力学性能研究[J].陶瓷(咸阳),2007(11):16-18. |
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| 作者姓名： | 艾桃桃 |
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| 作者单位： | 陕西理工学院材料科学与工程学院,陕西,汉中,723003 |
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| 摘 要： | 利用Ti—Al—TiO2混合体系以真空热压工艺合成了Al2O3颗粒增强的TiAl基复合材料，研究了复合材料的结构与力学性能。结果表明：随着自生Al2O3含量的增加，基体晶粒逐渐细化，Al2O3颗粒分布在基体晶界处，局部团聚。随着自生Al2O3含量的增加硬度是先增大后减小，而抗弯强度随着自生Al2O3含量的增加而减小。
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| 关 键 词： | 复合材料 微观结构 力学性能 |
Microstructure and Mechanical Properties of the Products Fabricated in Ti - Al - TiO2 System |
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| AI Taotao.Microstructure and Mechanical Properties of the Products Fabricated in Ti - Al - TiO2 System[J].Ceramics,2007(11):16-18. |
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| Authors: | AI Taotao |
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| Affiliation: | Department of Materials Science and Engineering, Shannxi University of Technology, Hanzhong,723003 |
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| Abstract: | Al2O3 particles reinforced TiAl matrix composites were fabricated by vacuum hotpress method in Ti - Al - TiO2 system. The microstructure and mechanical properties of the products were studied. The results show with increasing in - situ Al2O3content, the matrix grain is refining. Al2O3 particles distribute on the grain boundary and partial presents agglomerated particles. The hardness of the products increases after decreases with increasing in - situ Al2O3 content and the bending stength decreases with increasing in - situ Al2O3 content. |
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| Keywords: | Al2O3 |
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