| Fabrication and Mechanical Properties of TiC／TiAl Composites |
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| 引用本文： | YUEYun-long GONGYan-sheng WUHai-tao WANGChuan-bin ZHANGLian-meng. Fabrication and Mechanical Properties of TiC／TiAl Composites[J]. 武汉理工大学学报(材料科学英文版), 2004, 19(1): 1-4. DOI: 10.1007/BF02838349 |
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| 作者姓名： | YUEYun-long GONGYan-sheng WUHai-tao WANGChuan-bin ZHANGLian-meng |
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| 作者单位： | [1]JinanUniversity [2]WuhanUniversityofTechnology |
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| 基金项目： | FundedbytheNationalScienceFoundationofChina (No.Z2 0 0 3F0 2 ) |
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| 摘 要： | TiC/ TiAl composites with different TiC content were fabricated by rapid heating technique of spark plasma sintering ( SPS ). The effect of TiC purticles on microstructure and mechanical properties of TiAl matrix was imestigated. The results indicate that grain sizes of TiAl matrix decrease and mechanical properties are improved because of the addition of TiC particles. The composites display a 26.8% increase in bending strength when 10wt% TiC is added and 43.8% improvement in fracture toughness when 5ut% TiC is added compared to values of TiC-free materials. Grain-refinement and dispersion-strengthening were the main strengthening mechanism. The improvement of fracture toughness was due to the deflexion of TiC particles to the crack.
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| 关 键 词： | 机械性能 加工性能 TiC／TiAl复合材料 火花等离子体烧结 |
| 收稿时间： | 2003-03-11 |
| 修稿时间： | 2004-12-12 |
Fabrication and mechanical properties of TiC/TiAl composites |
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| Yue Yun-long,Gong Yan-sheng,Wu Hai-tao,Wang Chuan-bin,Zhang Lian-meng. Fabrication and mechanical properties of TiC/TiAl composites[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2004, 19(1): 1-4. DOI: 10.1007/BF02838349 |
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| Authors: | Yue Yun-long Gong Yan-sheng Wu Hai-tao Wang Chuan-bin Zhang Lian-meng |
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| Affiliation: | (1) Wuhan University of Technology, Wuhan, China;(2) Jinan University, 250022 Jinan, China |
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| Abstract: | TiC/TiAl composites with different TiC content were fabricated by rapid heating technique of spark plasma sintering (SPS).The effect of TiC particles on microstructure and mechanical properties of TiAl matrix was investigated.The results indicate that grain sizes of TiAl matrix decrease and mechanical properties are improved because of the addition of TiC particles.The composites display a 26.8% increase in bending strength when 10wt% TiC is added and 43.8% improvement in fracture toughness when 5wt% TiC is added compared to values of TiC-free materials.Grain-refinement and dispersion-strengthening were the main strengthening mechanism.The improvement of fracture toughness was due to the deflexion of TiC particles to the crack. |
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| Keywords: | TiC/TiAl composites mechanical properties SPS sintering technique |
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