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首页> 外文期刊>Journal of Materials Engineering and Performance >A Fractional Factorial Design Study of Reciprocating Wear Behavior of Al-Si-SiCp Composites at Lubricated Contacts
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A Fractional Factorial Design Study of Reciprocating Wear Behavior of Al-Si-SiCp Composites at Lubricated Contacts

机译：Al-Si-SiC p 复合材料在润滑触点处往复磨损行为的分数因子设计研究

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The lubricated reciprocating wear behavior of two composites A319/15%SiCp and A390/15%SiCp produced by the liquid metallurgy route was investigated by means of an indigenously developed reciprocating friction wear test rig using a fractional factorial-design approach. The main purpose was to study the influence of wear and friction test parameters such as applied load, sliding distance, reciprocating velocity, counter surface temperature and silicon content in composites, as well as their interactions on the wear and friction characteristics of these composites. Two output responses (wear loss and coefficient of friction) were measured. The input parameter levels were fixed through pilot experiment conducted in the newly developed reciprocating friction and wear test rig. The counter surface material used for the wear study was cast iron having Vickers hardness of 244 HVN. It had been demonstrated through established equations that A390/15%SiCp composite is subjected to low wear compared to the A319/15%SiCp composite. The experimental results indicate that the proposed mathematical models suggested could adequately describe the performance indicators within the limits of the factors that are being investigated. The applied load, sliding distance, reciprocating velocity, counter surface temperature, and silicon content in composite are the five important factors controlling the friction and wear characteristics of the composite in lubricated condition. Moreover, the two factor interactions have a strong effect on the wear of composites. The results give a comprehensive insight into the wear of the composites.
机译：利用本地开发的往复运动方法研究了两种由液态冶金法生产的复合材料A319 / 15％SiC p 和A390 / 15％SiC p 的润滑往复磨损行为摩擦磨损试验台采用分数阶乘设计方法。主要目的是研究磨损和摩擦测试参数的影响，例如施加的载荷，滑动距离，往复速度，反面温度和复合材料中的硅含量，以及它们之间的相互作用对这些复合材料的磨损和摩擦特性。测量了两个输出响应（磨损损失和摩擦系数）。输入参数水平是通过在新开发的往复式摩擦磨损试验台中进行的试验实验确定的。用于磨损研究的反面材料是维氏硬度为244 HVN的铸铁。通过已建立的方程式已证明，与A319 / 15％SiC p 复合材料相比，A390 / 15％SiC p 复合材料的磨损小。实验结果表明，所建议的数学模型可以在正在研究的因素范围内充分描述性能指标。复合材料中施加的载荷，滑动距离，往复速度，反面温度和硅含量是在润滑条件下控制复合材料摩擦磨损特性的五个重要因素。而且，这两个因素的相互作用对复合材料的磨损有很大的影响。结果提供了对复合材料磨损的全面了解。

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