Effect of load on the friction and wear properties of aluminum hybrid composite/chromium plated chrome steel tribopair under boundary lubrication conditions

Publication date: Available online 20 December 2019Source: Materials Today: ProceedingsAuthor(s): Pranav Dev Srivyas, M.S. CharooAbstractFriction and wear loss are the main reason that contribute to the failure in the IC engine components. This emerges the demand for the light weight, low friction and wear resistant material to enhance the efficiency and to reduce the emission problem in the IC engine components. In this concern, tribological test are performed on the hybrid aluminium matrix composites (Al–Si/Al2O3/GNP) composite fabricated using non-conventional rapid Spark Plasma Sintering (SPS) against chromium plated chrome steel ball under boundary lubrication conditions at room temperature using Ball-on-disc tribometer configuration. Friction & wear studies are conducted under high loading conditions ranging 100 N–300 N with 120 m sliding distance, 30 Hz frequency, 2 mm stroke length. From the study, it is reported that coefficient of friction (COF) as well as the wear significantly reduces; attributed to SAE20W50 engine oil lubricant with GNP Nano particles used as the secondary reinforcement (solid lubricant) in the hybrid composite. Ultra-mild adhesion and abrasion are the dominating wear mechanisms for the hybrid composite samples.
Source: Materials Today: Proceedings - Category: Materials Science Source Type: research