Wear of A380M Aluminum Alloy Under Reciprocating Load

Abstract

Due to their excellent strength to weight ratio, aluminum alloys are widely used in a variety of automotive components. Their relatively low melting point and low hardness compared to other engineering alloys, however, limits their use in applications where wear resistance is needed. To improve the wear resistance of these alloys, a good understanding of their wear behavior is essential. Dry sliding wear behavior of A380M aluminum alloy was investigated in the load range 6-20 N against steel ball using a reciprocating ball-on-flat configuration and at a frequency range of 4-20 Hz. Micromechanical properties were measured using a nano-indentation system. Scanning electron microscope examination of the wear track and debris revealed that wear within the present load and frequency range was due to abrasion, plastic deformation, and delamination. It was found that the wear rate of A380M aluminum alloy increased with load and decreased with increase in frequency.

Friction and wear characteristics modification via laser surface textured grooves

“…an increase in temperature [16], very significant changes in the viscosity of the lubricant [17], etc. and it is also consistent with some published literature [18][19][20]. The force measurements in the forward and reverse directions were recorded using the AIGU ZP-1000 digital force gauge attached to the sliding sample during the reciprocating action, while the room temperature was maintained at 17°C.…”

Investigation of wear behavior of Al-B4C functionally graded materials synthesized using vibration-assisted casting methodology

“…The following equation was used in accordance with the ASTM standard G133 33 to compute the wear volume ( V ): where h * is the wear track depth (mm) and D is the effective diameter (mm). Considering a spherical wear volume, the following equation can be used to figure out the effective diameter, D , from h : where R is the ball radius (mm).…”

Enhancing the Mechanical and Reciprocating Wear Behavior of Functionally Graded A359 Aluminium Alloy Through Heat Treatment

“…As the sliding distance increases from 500 to 1500 m, tribological interactions tend to take place with the influence of self-mated conditions, which increases the adhesion component of friction and thus wear rate increases [34,37]. At a sliding distance of 500 m, the obtained sliding speed is comparatively low, so the energy generated by friction is not sufficient to raise the temperature at the interface [13]. As-cast and heat treated worn surfaces of the homogeneous and FGM components lacks hardenability at longer sliding distance values, which indicates high level of surface damage.…”

“…At severe load conditions, heat treated FGMs exhibit the best combination of tribo-mechanical properties. The wear behavior of Al-Si alloy depends mostly on process parameters such as load, frequency, sliding distance, mechanical properties, composition and interfacial conditions [13,14]. Gomes et al and Rajeev et al confirms that under optimum conditions, Al-Si alloys frictional force and wear rate increases with increase in load [15,16] whereas under the influence of higher sliding speeds, a non-linear decrease in wear properties are observed [17,18].…”