| TiC/NiCrMoAlTi金属陶瓷的微观结构与力学性能 |
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| 引用本文： | 王全兆 刘越 陈志亮 毕敬. TiC/NiCrMoAlTi金属陶瓷的微观结构与力学性能[J]. 材料研究学报, 2005, 19(4): 354-360 |
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| 作者姓名： | 王全兆 刘越 陈志亮 毕敬 |
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| 作者单位： | [1]中国科学院金属研究所 [2]沈阳市工程质量监督站 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用粉末冶金真空烧结方法制备了TiC/NiCrMoAlTi金属陶瓷.研究了Mo含量对TiC/NiCrAlTi金属陶瓷的微观结构与力学性能的影响.结果表明,在TiC/NiCrAlTi金属陶瓷中添加Mo后,在金属陶瓷的硬质相颗粒周围出现了典型的环形相,随着Mo含量的增加,环形相增多变厚,致使金属陶瓷的硬度线性增加,环形相的生成使金属陶瓷硬质相的颗粒细化、尖角钝化,从而提高了金属陶瓷的抗弯强度,当环形相过度发达时由于其本身较脆,金属陶瓷的抗弯强度降低,Mo含量为4%(质量分数)时抗弯强度达到最大值.
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| 关 键 词： | 复合材料 TiC/NiCrMoAlTi金属陶瓷 微观结构 力学性能 |
| 文章编号： | 1005-3093(2005)04-0354-07 |
| 收稿时间： | 2004-07-01 |
| 修稿时间： | 2004-07-01 |
Microstructures and mechanical properties of TiC/NiCrMoAlTi cermets |
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| Wang QuanZhao;Liu Yue;Chen ZhiLiang;Bi Jing. Microstructures and mechanical properties of TiC/NiCrMoAlTi cermets[J]. Chinese Journal of Materials Research, 2005, 19(4): 354-360 |
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| Authors: | Wang QuanZhao Liu Yue Chen ZhiLiang Bi Jing |
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| Abstract: | TiC/NiCrMoAITi cermets were vacuum sintered by powder metallurgy technology. The effects of Mo additions on microstructures and mechanical properties of TiC/NiCrAl Ti cermets were investigated. Results show that the formation of surrounding phase around TiC particles refined the hard phase particles and blunted the sharp angles of TiC particles; With increasing Mo additions, both the amount and size of surrounding phase increased, thus the hardness increased linearly however the bonding strength increased to the maximum values at 4% Mo content and then decreased due to the brittle thick surrounding phase. |
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| Keywords: | composite TiC/NiCrMoAlTi cermets microstructure mechanical properties |
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