在自制的Fe-28Al-5Cr合金粉中加入质量分数为10%和20%Al2O3陶瓷颗粒,采用热压烧结技术制备了Fe-28Al-5Cr基复合材料,研究了Al2O3加入量对复合材料组织、力学性能及高温耐磨性能的影响.结果表明:所制备复合材料的相对密度达到99%以上,复合材料由Fe3Al基体和Al2O3增强相组成;Al2O3在复合材料中主要分布在晶界处,当Al2O3的加入量为20%时,形成了连续的网状结构;复合材料的强度比基体合金的低,且其强度随Al2O3含量的增加而降低,但加入20%Al2O3的复合材料的高温耐磨性能比基体合金的有明显改善.
参考文献
[1] | Stoloff NS. .Iron aluminides: present status and future prospects[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1/2):1-14. |
[2] | 范润华,孙康宁,尹衍升,包志臣.Fe3A1金属间化合物的机械合金化[J].机械工程学报,2000(08):55-58. |
[3] | Garima Sharma;P.K. Limaye;R.V. Ramanujan;M. Sundararaman;N. Prabhu .Dry-sliding wear studies of Fe_3Al-ordered intermetallic alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(1/2):408-414. |
[4] | Koch CC. .Intermetallic matrix composites prepared by mechanical alloying - a review[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1):39-48. |
[5] | Subramanian R.;Schneibel JH.;Buck LR.;Menchhofer PA.;McKamey CG. .Iron aluminide Al2O3 composites by in situ displacement reactions: processing and mechanical properties[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1/2):119-128. |
[6] | Yaping Bai;Jiandong Xing;Haoliang Wu;Zhen Liu;Yimin Gao;Shengqiang Ma .Study on preparation and mechanical properties of Fe_3Al-20 wt.%Al_2O_3 composites[J].Materials & design,2012(Aug.):211-219. |
[7] | Alman DE.;Tylczak JH.;Dogan CP.;Wilson RD.;Hawk JA. .Wear of iron-aluminide intermetallic-based alloys and composites by hard particles[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2001(2):875-884. |
[8] | Xinghua Zhang;Jiqiang Ma;Jun Yang;Qinling Bi;Weimin Liu .Dry-sliding tribological behavior of Fe-28Al-5Cr/TiC composites[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2011(5/6):881-888. |
[9] | 尹衍升,李嘉,谭训彦,张金升.机械合金化-加压烧结制备Fe3Al金属间化合物[J].粉末冶金技术,2004(03):151-155. |
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