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首页> 外文期刊>ISRN Mechanical Engineering >Modeling and Analysis for Wear Performance in Dry Sliding of Epoxy/Glass/PTW Composites Using Full Factorial Techniques
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Modeling and Analysis for Wear Performance in Dry Sliding of Epoxy/Glass/PTW Composites Using Full Factorial Techniques

机译：采用全因子技术的环氧树脂/玻璃/ PTW复合材料干式滑动磨损性能建模与分析

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摘要

The dry sliding friction and wear behavior of epoxy hybrid composites reinforced with glass fibers and a varying amount of potassium titanate whiskers (PTWs) fabricated by vacuum hand layup method were studied. The influence of normal load, sliding velocity, and whisker content on both friction coefficient and specific wear rate was investigated on a pin-on-disc machine. The tests were conducted at ambient conditions based on the 3 × 3 (3 factors at 3 levels) full factorial design. Analysis of variance (ANOVA) was performed to obtain the contribution of control parameters on friction coefficient and wear rate. The density and hardness of the composites were found to be enhanced with the PTW loading. The friction coefficient and wear resistance of the hybrid composites were found to be improved with the whisker content and were also greatly influenced by normal load and sliding velocity. A correlation between dry sliding wear behaviors of composites with wear parameters was obtained by multiple regressions. The worn out surface of selected samples was observed under scanning electron microscope (SEM) to identify wear mechanisms. This study revealed that the addition of the ceramic microfillers such as PTW improves the wear performance of the epoxy/glass polymer composites significantly.
机译：研究了由玻璃纤维和不同数量的钛酸钾晶须（PTW）增强的环氧杂化复合材料的干式滑动摩擦和磨损行为。在销盘式机床上研究了法向载荷，滑动速度和晶须含量对摩擦系数和比磨损率的影响。测试是基于3×3（3个级别的3个因子）全因子设计在环境条件下进行的。进行方差分析（ANOVA）以获得控制参数对摩擦系数和磨损率的贡献。发现该复合材料的密度和硬度随着PTW的加入而提高。发现杂化复合材料的摩擦系数和耐磨性随晶须含量的提高而提高，并且还受到法向载荷和滑动速度的极大影响。通过多元回归，得出复合材料的干滑磨损行为与磨损参数之间的相关性。在扫描电子显微镜（SEM）下观察所选样品的磨损表面，以确定磨损机理。这项研究表明，添加陶瓷微填料（如PTW）可显着改善环氧/玻璃聚合物复合材料的耐磨性能。

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