研究了铸态Ag-In-Cd合金在300-400℃及12-24MPa压应力范围内的压缩蠕变行为,根据实验结果计算了表观应力指数n和表观激活能Qa,探讨了合金的压缩蠕变机制.结果表明,随温度和应力的升高,合金的稳态蠕变速率增加,稳态蠕变速率与应力之间呈指数关系.温度为300,350和400℃时,合金的n分别为2.90,4.09和5.77;压应力为12,18和24 MPa时,合金的Qa值分别为68.1,103.7和131.6 kJ/mol.位错运动形成大量层错是Ag-In-Cd合金在温度为300-400℃,压应力为12-24 MPa下的压缩蠕变控制机制.
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