| SiC纤维增强的钛合金基复合材料的显微结构 |
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| 引用本文： | 于立国,吕毓雄,李斗星,叶恒强.SiC纤维增强的钛合金基复合材料的显微结构[J].金属学报,1996,32(3):318-322. |
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| 作者姓名： | 于立国 吕毓雄 李斗星 叶恒强 |
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| 作者单位： | 中国科学院金属研究所固体原子像开放研究实验室 |
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| 摘 要： | 利用电子显微镜研究了ＳｉＣ纤维增强的钛合金基复合材料的显微结构，结果表明，复合材料的增强相为直径１２０μｍ左右并含有１５μｍ钨芯的柱状纤维，β－ＳｉＣ针状枝晶沿径向生长，其面垂直于枝晶生长方向并含有大量的层错和微孪晶。纤维与基体结构得很理想，界面非晶保护层在材料复合过程中未受损失。
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| 关 键 词： | 碳化硅纤维 钛合金 金属基 复合材料 显微结构 |
| 收稿时间： | 1996-03-18 |
| 修稿时间： | 1996-03-18 |
MICROSTRUCTURE OF Ti ALLOY BASED COMPOSITE REINFORCED BY SiC FIBERS |
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| YU Liguo,LU Yuxiong,LI Douxing,YE Hengqiang.MICROSTRUCTURE OF Ti ALLOY BASED COMPOSITE REINFORCED BY SiC FIBERS[J].Acta Metallurgica Sinica,1996,32(3):318-322. |
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| Authors: | YU Liguo LU Yuxiong LI Douxing YE Hengqiang |
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| Abstract: | The study of Ti alloy based composite reinforced by SiC fibers showed that SiC dendrites grew along the radial directions peprendicular to the tungsten core; many stacking faults and microtwins were formed within the dendrites; SiC fibers bond well to the matrix, and the amorphous interfacial layers between them have not been damaged during composition. In the course of composition SiC dendrites near the interfacial region dissolved and diffused into the amorphous layer and reacted with the Ti alloy matrix at high temperature, producing TiC and Ti5Si3 . |
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| Keywords: | SiC fiber composite interfacial reaction |
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