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首页> 外文期刊>Journal of Mechanical Science and Technology >Effect of anodized coating on friction noise in aluminum
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Effect of anodized coating on friction noise in aluminum

机译：阳极氧化涂层对铝摩擦噪声的影响

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摘要

This study looks at the frictional noise and vibration generated by the relative motion of steel with an uncoated Al pin and an anodized Al pin in a reciprocating system. Frictional noise occurred with both the uncoated and anodized Al pins near 2 kHz and 7.2 kHz. However, the onset of the frictional noise with the uncoated Al pin was generated relatively quickly. The sound pressure level of the two specimens was similar at the moment when the friction coefficient became similar. The results of the surface characteristics using scanning electron microscope (SEM)/energy dispersive spectroscopy (EDS) analysis shows that the uncoated Al pin sharply generated wear from the beginning of the test. And, adhesive wear occurred at the edge of the contact surface. When the friction continued, there were increases in the debris due to material transfer on the worn surface, as well as oxygen and Fe on the surface. This result suggests that the friction surface was further damaged. In contrast, the coating on the anodized Al pin protected the friction surface at the beginning of the test and delayed the damage of the surface due to friction. However, as the friction continued, the coating surface was damaged because the nickel and sulfur added in the post-processing of the coating were reduced, and the debris was increased by the material transfer. Thus, the friction coefficient gradually increased at the anodized Al pin. And, frictional noise was generated. Frictional noise at the anodized Al pin was generated by the gradual increase in the friction coefficient.
机译：本研究通过在往复系统中，看着钢的相对运动产生的摩擦噪声和振动，以及在往复系统中的阳极氧化Al引脚。摩擦噪声发生在2kHz和7.2 kHz附近的未涂层和阳极氧化AL引脚。然而，相对快速地产生具有未涂覆的Al引脚的摩擦噪声的开始。当摩擦系数变得相似时，两个样本的声压水平类似。使用扫描电子显微镜（SEM）/能量色散光谱（EDS）分析的表面特性的结果表明，未涂层的Al引脚从测试开始急剧产生磨损。并且，在接触表面的边缘发生粘合磨损。当摩擦力持续时，由于磨损表面上的材料转移，葡萄砂和表面上的氧气和Fe含有碎片。该结果表明摩擦表面进一步受损。相反，阳极氧化的Al引脚上的涂层在试验开始时保护摩擦表面，并且由于摩擦而延迟了表面的损坏。然而，随着摩擦的继续，涂层表面被损坏，因为在涂层后的后加工中添加镍和硫，并且通过材料转移增加了碎片。因此，在阳极氧化Al销处逐渐增加摩擦系数。并且，产生摩擦噪声。通过摩擦系数的逐渐增加产生阳极氧化Al引脚的摩擦噪声。

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