粉末冶金技术2011，Vol.29Issue(1)：21-26,6.
工艺参数对Fe3Al/Al2O3复合材料力学性能的影响研究
Study on effects of processing parameters on mechanical properties of Fe3Al/Al2O3 composite materials
喇培清 1刘雪梅 1卢学峰 1张秀萍1
作者信息
- 1. 兰州理工大学有色金属新材料国家重点实验室,兰州,730050
- 折叠
摘要
Abstract
The Fe3Al/Al2O3 composite materials were prepared by normal pressure sintering using Al2O3 as matrix material and self-made submicron Fe3 Al as strengthening phase. The effects of Fe3 Al content, sintering temperature and holding time on mechanical properties of composite materials were investigated. The results show that mechanical properties of composite materials can be improved by means of increasing Fe3 Al content and sintering temperature and prolongation of holding time. When the optimum process parameters ( Fe3Al of 15wt％ , forming pressure of 2488MPa, and sintering temperature of 1380℃ ) are provided, which greatly contribute to the improvement of mechanical properties of composite materials, the higher properties (relative density of 93％, Vickers hardness of 9. 3GPa and facture toughness of 7.51MPa · m1/2) are achieved. The improvement of mechanical properties of the composites is strongly influenced by sintering temperature.关键词
Fe3Al/Al2O3/复合材料/力学性能/断裂韧度Key words
Fe3 Al/Al2O3/ composite material/ mechanical properties/ facture toughness引用本文复制引用
喇培清,刘雪梅,卢学峰,张秀萍..工艺参数对Fe3Al/Al2O3复合材料力学性能的影响研究[J].粉末冶金技术,2011,29(1):21-26,6.
