Journal
MATERIALS & DESIGN
Volume 235, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2023.112437
Keywords
Stick-slip; Interface interaction; Temperature dependence
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This study investigated the key factors influencing the stick-slip behavior of polymer/metal through experiments at varying temperatures. It was found that the friction behavior and interfacial interaction are temperature-dependent. The transition in interfacial interaction from adhesion to plastic deformation with increased temperature is responsible for the reduction in stick-slip intensity.
The stick-slip behavior of polymer/metal is a complex frictional issue since the properties of polymers are highly temperature-sensitive. The present study aimed to shed light on the key factors influencing the stick-slip behavior of polyamide-66/zinc-coated steel by conducting experiments at varying temperatures. The results revealed that the stick-slip behavior and interfacial interaction are temperature-dependent. The friction behavior transitioned from stick-slip to smooth sliding at 40 degrees C. The transition in the interfacial interaction from adhesion to plastic deformation with increased temperature was responsible for the reduction in stick-slip intensity. The reductions in both the potential energy and static friction force were believed to cause the decreased stick-slip intensity, as evidenced by the in-situ observation of the friction pairs through the digital image correlation (DIC) method. The present study could provide a comprehensive and targeted approach to suppressing the stick-slip behavior of polymer/metal over a wide range of temperatures.
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