Mechanical and Tribological Properties on Al-Sn-Si Alloy-Based Plain Bearing Material

Abstract

In this article, the mechanical and tribological characteristics of newly developed Al-Sn-Si alloy was investigated using a pin-on-disc tribometer. An investigation of the microstructure and mechanical properties such as tensile strength and hardness of the alloy was performed according to standard test procedures. The friction and wear behavior of the prepared alloy sliding against high carbon–high chromium steel was investigated at different loads (50, 60, 70, and 75 N) at a constant sliding speed. Tests were carried in oil-lubricated conditions using a 20w40 engine oil that was preheated to temperature of 80°C. In addition, the mass loss and wear rate of this alloy is discussed. To determine the wear mechanism, the worn surfaces of the alloy were examined using a scanning electron microscope (SEM). This article provides an overview of the friction and wear response of the Al-Sn-Si alloy and the topographical observation of the wear surface.

KEY WORDS:

• Aluminum–Tin–Silicon Alloy
• Pin-on-Disc Tribometer
• Lubricated Sliding
• Tribological Characteristics

Acknowledgments

Review led by Benjamin DeKoven