Experimental study on tribological behavior of aluminum–copper functionally graded material

A five-layered aluminum–copper metal functionally graded material was developed through powder metallurgy process. The sample comprises different weight percentages of copper and aluminum that vary from 0 wt% to 100 wt % along the thickness direction. Erosion wear was performed on air jet erosion te...

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part L, Journal of materials, design and applications Journal of materials, design and applications, 2023-07, Vol.237 (7), p.1592-1602
Main Authors: Boggarapu, Vasavi, Rama Sreekanth, P.S., Peddakondigalla, Venkateswara Babu, Parvathaneni, Phani Prasanthi, Ojha, Shakuntla, Gujjala, Jayachandra, Jain, Satish, Babu Valasingam, Suresh, Gujjala, Raghavendra
Format: Article
Language:English
Subjects:
Abrasive wear
Air jets
Aluminum
Copper
Erosion resistance
Functionally gradient materials
Impact velocity
Powder metallurgy
Sintering (powder metallurgy)
Test equipment
Tribology
Wear mechanisms
Wear rate
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A five-layered aluminum–copper metal functionally graded material was developed through powder metallurgy process. The sample comprises different weight percentages of copper and aluminum that vary from 0 wt% to 100 wt % along the thickness direction. Erosion wear was performed on air jet erosion testing apparatus at a constant impact angle of 90o and impact velocity of 151 m/s. It was observed that erosion wear decreases when there is an increase in copper content. Layer 1 comprising 100 wt% of copper has shown 76.92% lower wear compared to layer 5 (100 wt% of aluminum). Besides, erosion resistance was enhanced at graded layers due to the formation of Al2Cu phase during sintering. Abrasive wear of metal functionally graded material was evaluated on the pin-on-disc test apparatus. Experiments were conducted at different loading conditions on various abrasive surfaces (P120, P800, and P2000). Irrespective of abrasive surface, the specific wear rate of aluminum–copper metal functionally graded material sample increased with an increase in load from 5N to 15N. At 5N, abrasive wear of metal functionally graded material on P2000 grit surface was 87.7% and 27.19% lower compared to P120 and P800, respectively. Eroded and worn-out surfaces were examined microscopically to understand the wear mechanisms and are discussed in detail.
ISSN:1464-4207
2041-3076
DOI:10.1177/14644207221150095