15%SiC P /8009铝基复合材料热压缩流变应力行为

Q3 Materials Science

Hangkong Cailiao Xuebao/Journal of Aeronautical Materials Pub Date : 2017-03-31 DOI:10.11868/J.ISSN.1005-5053.2016.000140

王宇, 滕杰, 陈爽, 罗海波, 唐柳莲, 张辉

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引用次数: 0

摘要

采用Gleeble-3500热模拟试验机对15%SiCP/8009铝基复合材料在温度为400~550 ℃和应变速率为0.001~1 s-1条件下的热变形流变行为进行研究。结果表明：流变应力在开始阶段随应变的增加而增大，出现峰值后逐渐趋于平稳；流变应力随温度的升高而降低，随应变速率的增大而升高，呈现出正应变速率敏感性；流变应力行为可以用双曲正弦模型来描述，其热变形激活能为488.3853 kJ/mol，应力指数为7.19022。

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15%SiC P /8009铝基复合材料热压缩流变应力行为

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