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research-article

The effects of constant kinetic energy of different impacting particles on slurry erosion wear of AA 6063

[+] Author and Article Information
Bhushan Nandre

CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra, India-411 008; M.E.S. College of Engineering, Pune, S. P. Pune university, Maharashtra, India- 411 001
hushan.nandre@gmail.com

Girish Desale

CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra, India-411 008
gr.desale@ncl.res.in

1Corresponding author.

ASME doi:10.1115/1.4038355 History: Received March 11, 2017; Revised October 13, 2017

Abstract

The present experimental study investigates the effect of constant kinetic energy on erosion wear of Aluminium alloy 6063. Three different natural erodents (quartz, silicon carbide and alumina) with different particle sizes are used to impact at 45° and 90° impact angles. For calculating the number of particles in the slurry pot, it is assumed that the solid particles are of spherical shape. The total numbers of impacting solid particles were kept constant by adjusting the solid concentration, velocity and test duration. The SEM images of the three erodents show that the alumina particles have sharp edges with more angularity, silicon carbide particles have sub angular nature while quartz particles are blocky in shape. The mass loss per particle at 45° impact angle is observed higher than at normal impact angle. It may be due to the change in material removal mechanism with changing the impact angle. It is also found that the mass loss per particle from the target material having different particle size with constant kinetic energy remains constant for respective erodents. This indicates that the velocity exponent of impacting particles is around 2. The SEM images of eroded surfaces reveal the different mechanisms of material removal at 45° impact angle and at normal impact angle.

Copyright (c) 2017 by ASME
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