| Nb-Cr掺杂原位合成Al2O3/TiAl复合材料的组织与性能 |
| |
| 引用本文： | 郭晓波,王芬,朱建锋,杨文文. Nb-Cr掺杂原位合成Al2O3/TiAl复合材料的组织与性能[J]. 材料热处理学报, 2012, 33(Z1): 11-14 |
| |
| 作者姓名： | 郭晓波 王芬 朱建锋 杨文文 |
| |
| 作者单位： | 陕西科技大学材料科学与工程学院,陕西西安,710021 |
| |
| 基金项目： | 国家自然科学基金资助项目(51072109) |
| |
| 摘 要： | 采用原位热压工艺,在Ti-Al-TiO2-Nb2O5体系中加入Cr2O3原位合成Al2O3/TiAl复合材料.借助X射线衍射分析、SEM分析及力学性能分析,研究了Nb-Cr掺杂复合强化Al2O3/TiAl复合材料的反应过程、微观结构及力学性能.结果表明Nb-Cr掺杂原位合成Al2O3/TiAl复合材料能够细化晶粒并通过微合金化增强增韧TiAl复合材料.
|
| 关 键 词： | Nb-Cr掺杂 Al2O3/TiAl复合材料 微合金化 力学性能 |
Microstructure and mechanical properties of in situ Al2O3/TiAl composites doped with Nb-Cr |
| |
| GUO Xiao-bo,WANG Fen,ZHU Jian-feng,YANG Wen-wen. Microstructure and mechanical properties of in situ Al2O3/TiAl composites doped with Nb-Cr[J]. Transactions of Materials and Heat Treatment, 2012, 33(Z1): 11-14 |
| |
| Authors: | GUO Xiao-bo WANG Fen ZHU Jian-feng YANG Wen-wen |
| |
| Affiliation: | (School of Materials Science and Engineering,Shaanxi University of Science and Technology,Xi’an 710021,China) |
| |
| Abstract: | Al2O3/TiAl composites were fabricated by in situ hot pressing method with exothermic reaction of Ti,Al,TiO2,Cr2O3 and Nb2O5 powder.The phase composition and microstructure of the composites were characterized by XRD and SEM,the effects of Nb-Cr addition on microstructure and mechanical properties of Al2O3/TiAl composites were also investigated.The results indicate that with a suitable content of Cr2O3,the in situ Al2O3 particles are depressively distributed and the grains are refined,resulting in better mechanical properties,the relative density and hardness of the composites are gradually increased. |
| |
| Keywords: | Nb-Cr doped A12O3/TiAl composites micro-alloyed mechanical properties |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
