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A Study on the Tribological Properties of Al-AlN-Y 2 W 3 O 12 Hybrid Composites
Journal of Materials Engineering and Performance ( IF 2.3 ) Pub Date : 2020-09-06 , DOI: 10.1007/s11665-020-05086-0
Jamuna Sethi , Sudipta Mohapatra , Abhijeet Sethi , Siddhartha Das , Karabi Das

The effect of the amount of reinforcements, load, sliding distance and sliding speed on the wear properties of aluminum matrix hybrid composites (AMHCs) reinforced with yttrium tungstate (Y2W3O12) and aluminum nitride (AlN) has been investigated. The hardness and wear resistance of the composites improve with the increasing amount of AlN and Y2W3O12. The wear resistance increases with a decrease in the load and an increase in the sliding distance. The AMHCs exhibit the formation of a stable mechanically mixed layer along with fine grooves and oxides under mild conditions (low load, high sliding distance and low sliding speed) resulting in relatively low wear rate and coefficient of friction (COF). However, under severe conditions (high load, low sliding distance and high sliding speed), the formation of larger grooves along with heavy delamination increases the wear rate and COF. Response surface methodology is used to correlate the experimental values with the predicted values. The results show that the load and amount of reinforcement are significantly affecting the wear rate and COF.



中文翻译:

Al-AlN-Y 2 W 3 O 12杂化复合材料的摩擦学性能研究

研究了补强量,载荷,滑动距离和滑动速度对钨酸钇(Y 2 W 3 O 12)和氮化铝(AlN)增强的铝基混杂复合材料(AMHCs)磨损性能的影响。随着AlN和Y 2 W 3 O 12含量的增加,复合材料的硬度和耐磨性提高。。耐磨性随着负载的减少和滑动距离的增加而增加。在温和条件下(低负载,高滑动距离和低滑动速度),AMHC会形成稳定的机械混合层以及细小的沟槽和氧化物,从而导致相对较低的磨损率和摩擦系数(COF)。但是,在严酷条件下(高负载,低滑动距离和高滑动速度),形成较大的凹槽以及严重的分层会增加磨损率和COF。响应面方法用于将实验值与预测值相关。结果表明,载荷和补强量显着影响磨损率和COF。

更新日期:2020-09-07
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