Experimental Investigation on influence of Mn on tribological properties of as cast Al25Mg2Si-2Cu-4Mn Alloy at room temperature

Experimental Investigation on influence of Mn on tribological properties of as cast Al25Mg2Si-2Cu-4Mn Alloy at room temperature
Author(s):
MohamadAziz Athani, Neeta S. Mathapati
Keywords:
Hypereutectic, Coefficient of friction, surface roughness, volumetric wear rate.
Abstract
In the present study the experimental investigation is done on hypereutectic Al-Si alloy. The objective is to know the influence of Manganese (Mn) on as cast Al-25Mg2Si-2Cu-4Mn alloy. Here weight loss technique is used for the evaluation of wear. Wear test is done on pin on disc wear testing machine (TR-20, DUCOM, PIN-ON-DISC MACHINE). The rotating disc is made up of low carbon alloy steel ( EN-32 Steel, 160 mm diameter and 8 mm thickness) with hardness value of about 62RC. The linear variable differential transformer (LVDT) is used to record the wear loss and monitored by loss of length, due to wear of specimen of fixed diameter. The wear loss is measured in microns. For the more accurate results, the weight loss method is adopted. The influence of Mn on the tribological properties can be explained with this test. Rise in load increases the coefficient of friction and after reaching a peak value, it starts declining. The approximate estimate can lead to a conclusion from maximum number of speed curves is that, the load is varies with friction.
Article Details
Unique Paper ID: 143747 Publication Volume & Issue: Volume 3, Issue 1 Page(s): 141 - 145
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