Umudike Journal of Engineering and Technology

Michael Okpara University of Agriculture, Umudike


TRIBOLOGICAL PERFORMANCE CHARACTERIZATION OF HIGH CARBON STEEL PLOUGHSHARE UNDER DRY SLIDING CONTACT
Akuwueke, L. M.
Agricultural and Bioresources Engineering Department, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria

Etoamaihe, U. J.
Agricultural and Bioresources Engineering Department, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria



ABSTRACT

The tribological performance of high carbon steel ploughshare for soil tillage operation was studied under dry sliding contact using a ball-on-disc tribometer following ASTM standards. The objective was to evaluate experimentally the effect of applied load, sliding speed, and sliding time on the tribological properties of the ploughshare sample. Results showed that with increasing applied load from 2 to 10 N and at constant sliding speed and time of (5 cm/s, 360 s), (10 cm/s, 540 s), (15 cm/s, 720 s) and (20 cm/s, 900 s), friction performance of the ploughshare material operated within the boundaries of 0.126≤µ≤0.238, 0.193≤µ≤0.271, 0.258≤µ≤ 0.359, and 0.333≤µ≤0.418 respectively showing that friction coefficient increased as sliding speed and time increased by 13.9%, 32.5%, 16.4% and 53.2%, 33.7%, 29.1% for minimum and maximum friction respectively. Wear performance of the ploughshare material operated within the boundaries of 5.56≤WR≤ 22.22 x 10-6 g/m, 5.56≤WR≤16.67 x 10-6 g/m, 1.85≤WR≤ 7.41 x 10-6 g/m, and 5.56≤WR≤ 11.11 x 10-6 g/m respectively. Maximum wear rate decreased as sliding speed and time increased with percentage decrease of 24.9%, and 55.5% respectively. The optimal friction coefficient for high carbon steel ploughshare was obtained as 0.126 with applied load of 10 N at speed of 5 cm/s, time of 360 s whereas optimal wear rate was obtained as 1.85 x 10-6 g/m with applied load of 2 N, sliding speed of 15 cm/s and time of 720 s and are therefore recommended.


Keywords: High Carbon Steel, Ploughshare, Soil Tillage, Dry Sliding Contact, Tribological Properties


https://doi.org/10.33922/j.ujet_v10i2_9
 Download PDF
View: 55 | Download: 8
Published
Wednesday, August 21, 2024
Issue
Vol. 10 No. 2, December 2024
Article Section
GENERAL
The contents of the articles are the sole opinion of the author(s) and not of UJET.
Journal Policies/Guidelines
Peer Review Guideline
Digital Preservation Policy
Authors Guideline
Help

Downloads
Copyright Transfer Statement Form

Open Access
Umudike Journal of Engineering and Technology makes abstracts and full texts of all articles published freely available to everyone immediately after publication thereby enabling the accessibility of research articles by the global community without hindrance through the internet.

Indexing and Abstracting
We are indexed in Google Scholar, AJOL, and EBSCO.