Effect of impact angle and impact velocity on the slurry erosion behavior of high density polyethylene (HDPE)

Document Type : Original Article

Authors

1 Mechanical design department, El-Mataria faculty of engineering, Helwan University, Cairo, Egypt

2 MTC, Cairo, Egypt

3 EAE & AT Affiliated to ministry of military production

Abstract

High density polyethylene is widely used in many applications which deal with
slurry because of its high erosion resistance characteristics. Slurry erosion is a type of erosive
wear which takes place when a stream of liquid hits a solid body and results erosion in this
body surface. Slurry erosion is affected by some parameters as material hardness, impact
velocity, impact angle, slurry content, ambient temperature, particle hardness, particle size and
particle shape. The changing of these parameters individually will result in useful analysis for
the changing in slurry erosion rate with respect to the changed parameter. This experimental
work aims to investigate the slurry erosion behavior of high density polyethylene under the
effect of different impact velocities. A slurry impingement test rig will be used to make the
wear test and wear rate of HDPE is investigated as a function of impact velocity and impact
angle. Results showed that the maximum wear rate is at the lowest impact angle and maximum
impact velocity. Weight loss is the indication of wear rate of the HDPE specimens after
experiment and wear rate is defined as weight loss during the test time in [mg/h] unit

Keywords