Effect of Peening Intensity and Applied Load on Low Stress Abrasive Wear Response of Agricultural Grade SAE-6150 Steel

The effect of shot peening on low stress abrasive wear behaviour of SAE-6150 steel was studied at various intensities varying from 0.17A to 0.47A. The abrasive wear test on un-peened and peened specimens by dry sand abrasion tester revealed that shot peening reduced abrasive wear considerably, when it was restricted up to 0.17A. But over peening led to higher abrasive wear rate. In the critical period, the peened and un-peened samples exhibited comparable wear rate, indicating that peening was required on regular interval to maximize the advantages. The technology would be useful for manufacturer of agricultural implements in India, due to its simplicity and cost effectiveness.