摘要
用熔铸法制备了ＳｉＣ， Ａ１２Ｏ３和 ＴｉＢ２颗粒增强 Ｆｅ－２８Ａｌ－５Ｃｒ基复合材料，研究了材料的 微观组织和力学性能，结果表明， Ａ１２Ｏ３在 Ｆｅ３Ａ１中的化学稳定性很好， ＴｉＢ２与基体发生了部分反应，ＳｉＣ与基体的反应严重，复合材料在室温和高温下的力学性能的变化说明，上述颗粒的加入使材料的强度较大幅度的提高。
SiC, Al2O3 and TiB2 particles reinforced Fe-28Al-5Cr matrix (in atomic fraction) composites have been investigated. The composites were prepared by adding 5% (volume fraction)ceramic particles in molten Fe3Al. The thermodynamical stability of these particles in Fe3Al is different. The stability of Al2O3 is very good, and TiB2 reacted partly, SiC reacted seriously with matrix.Mechanical testing at room and high temperature showed that significant improvements in strength was obtained, the decrease of elongation was not seriously.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2000年第4期344-348,共5页
Chinese Journal of Materials Research
