| (TiB+Nd2O3)/Ti复合材料的显微组织与力学性能 |
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| 引用本文： | 肖代红.(TiB+Nd2O3)/Ti复合材料的显微组织与力学性能[J].铸造技术,2007,28(6):791-795. |
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| 作者姓名： | 肖代红 |
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| 作者单位： | 中南大学粉末冶金国家重点实验室,湖南,长沙,410083 |
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| 摘 要： | 以钛、B2O3和稀土钕为原料,通过熔炼法合成了钛基复合材料。采用扫描电镜、透射电镜及力学性能测试,研究了稀土钕对复合材料组织与性能的影响。结果显示,原位合成的复合材料中,增强体为均匀分布于基体中的Nd2O3与TiB;Nd2O3的形状有细小层片状、板条状及球状,与基体之间没有发生显著的界面反应。稀土钕的添加有助于改善复合材料的塑性与高温强度。
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| 关 键 词： | 钛基复合材料 稀土钕 显微组织 力学性能 |
| 文章编号： | 1000-8365（2007）06-0791-05 |
| 修稿时间： | 2007-02-112007-03-19 |
Microstructure and Mechanical Properties of (TiB+Nd2O3)/Ti Composites |
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| XIAO Dai-hong.Microstructure and Mechanical Properties of (TiB+Nd2O3)/Ti Composites[J].Foundry Technology,2007,28(6):791-795. |
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| Authors: | XIAO Dai-hong |
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| Affiliation: | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
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| Abstract: | Ti matrix composites were synthesized through the reaction among Ti, B2O3 and rare earth Nd by ingot metallurgy. The effect of rare earth Nd addition on the microstructure and mechanical properties of composites were investigated using scanning electronic microscope and transonic electron microscope. It is showed that the reinforcements of composites are TiB and Nd2O3 which are distributed uniformly in the matrix. The interfaces between reinforcement s of Nd2O3 and Ti matrix are clear without any interfacial reaction. The shape of Nd2O3 particles are fine plate, lath shape and nodular shape with increasing of Nd content in the Ti matrix. Nd addition can improve the plasticity and high temperature strength of composites. |
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| Keywords: | Titanium matrix composite Rare earth Nd Microstructure Mechanical properties |
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