循环频率对SiC_W/6061Al复合材料高温循环蠕变的影响

材料研究学报, 1998, 12(2): 213-216.

循环频率对SiC_W/6061Al复合材料高温循环蠕变的影响

中国科学院金属研究所材料疲劳与断裂国家重点实验室

日本丰桥技术大学

EFFECT OF FREQUENCY ON CYCLIC CREEP BEHAVIOR OF SiC_W/6061 COMPOSITE AT HIGH TEMPERATURES

LIU Pilin , WANG Zhongguang , TODA H. , KOBAYASHI T.(State Key Laboratory for Fatigue and Fracture of Materials (Institute of Metal Research

Keywords： composite , 蠕变 , 循环蠕变

在测试应力范围内,SiCW/6061Al复合材料在196℃显示循环蠕变加速而在350℃显示循环蠕变减速在0～0.5Hz范围内,随着频率的增加,温度较低时循环蠕变应力指数增加而激活能降低,温度较高时应力指数与激活能同时增加当频率增加到1Hz时则偏离上述趋势

The effect of frequency on the cyclic creep behavior of SiCw/6061AI composite was studied. It was found that the composite showed cyclic creep acceleration (CCA) in the tested stress region at 196℃, while it showed cyclic creep retardation (CCR) at 350℃.

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材料期刊网

循环频率对SiC_W/6061Al复合材料高温循环蠕变的影响

EFFECT OF FREQUENCY ON CYCLIC CREEP BEHAVIOR OF SiC_W/6061 COMPOSITE AT HIGH TEMPERATURES

参考文献