摘要
研究了挤压温度对粉末挤压法制备镁基复合材料室温拉伸性能和断口形貌的影响。实验结果表明：复合材料在350-450℃温度范围内挤压温度越高，SiC颗粒分布越均匀，致密度越高，复合材料强度、延伸率上升；复合材料断裂方式随着挤压温度升高由颗粒／基体脱粘向颗粒断裂转变。
The influence of extrusion temperature on the tensile properties of 15 vol% SiCp/Mg-9Al composite produced by powder extrusion was investigated. The results show that between 350-450℃, the mechanical properties of the composite such as tensile strength, yield strength and elongation increase with the increase of the extrusion temperature. At the same time, with the increase of extrusion temperature the fracture mode changes from particle/ matrix debonding to particle fracture.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2006年第6期127-133,共7页
Acta Materiae Compositae Sinica
基金
沈阳市自然科学基金(2004-85)
关键词
镁基复合材料
力学性能
挤压温度
断口
magnesium matrix composites
mechanical properties
extrusion temperature
fracture surface
