研究了用于触变成形的SiCp/2024复合材料的二次加热组织及其影响因素.结果表明,对SiCp/2024复合材料的二次加热中最佳工艺参数为:重熔温度在590-600 ℃之间,保温时间为5～10 min.SiCp/2024复合材料在局部重熔过程中具有较高的稳定性,随温度的提高和保温时间的增加,球形固相颗粒尺寸增加很小.5%SiCp/2024复合材料在590℃时的晶粒粗化速率常数为27.45μm3/s,15%SiCp/2024复合材料和25%SiCp/2024复合材料在590℃时的晶粒粗化速率常数分别为12.54μm3/s和6.89μm3/s,均小于基体合金的晶粒粗化速率常数59.56μm3/s.
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