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首页> 外文期刊>Archives of Metallurgy and Materials >Fatigue Damage of Al/SiC Composites - Macroscopic and Microscopic Analysis
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Fatigue Damage of Al/SiC Composites - Macroscopic and Microscopic Analysis

机译：Al / SiC复合材料的疲劳损伤-宏观和微观分析

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摘要

The results of comparative examinations of mechanical behaviour during fatigue loads and microstructure assessment before and after fatigue tests were presented. Composites of aluminium matrix and SiC reinforcement manufactured using the KoBo method were investigated. The combinations of two kinds of fatigue damage mechanisms were observed. The first one governed by cyclic plasticity and related to inelastic strain amplitude changes and the second one expressed in a form of ratcheting based on changes in mean inelastic strain. The higher SiC content the less influence of the fatigue damage mechanisms on material behaviour was observed. Attempts have been made to evaluate an appropriate fatigue damage parameter. However, it still needs further improvements.
机译：介绍了疲劳载荷期间的机械性能的对比检查结果以及疲劳试验前后的微观结构评估结果。研究了使用KoBo方法制造的铝基复合材料和SiC增强材料。观察到两种疲劳损伤机理的组合。第一个受循环可塑性控制，与非弹性应变幅度变化有关，第二个则根据平均非弹性应变的变化以棘轮的形式表示。 SiC含量越高，观察到疲劳损伤机理对材料性能的影响越小。已经尝试评估适当的疲劳损伤参数。但是，它仍然需要进一步的改进。

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