INVESTIGATION OF WEAR BEHAVIOR OF ALUMINIUM ALLOY AND COMPARISON WITH PURE ALUMINIUM

Abstract

In modern age of technology Aluminium alloys have extensive application in industries. The range of physical properties that can be imparted to them is remarkable. Addition of Silicon and copper to Aluminium helps to increase their strength and wear resistance. Al-Si-Cu alloys can be extensively used in industrial applications due to better tribological properties. In the present work, an attempt has been made to study the tribological properties of Aluminium as-cast alloy sample i.e. Al alloy and and pure Aluminium. Wear tests were conducted using a pin-on-disc wear test rig as per ASTM specification G99. The operational parameters were normal load and sliding velocity of pin with respect to rotating disk at room temperature. The medium used were dry and wet lubrication. The amount of wear has been reduced significantly in aluminium alloy comparative to pure aluminium. Dry condition testing of samples showed a lot of noise and relatively more amount of wear for both aluminium and aluminium alloy.The coefficient of friction for aluminium alloy in wet condition was approximately constant up to the load the applied load of 2kg and then decreased with further application of load while coefficient of friction for pure aluminium was increasing continuously with the load.