Prediction of influence of Co-Cr-Mo alloy coating on the wear rate of aluminium with HCl solution

• Published in: Materials today : proceedings Vol. 42; pp. 1287 - 1296
• Main Authors: Pratapa Reddy, Y., Lakshmi Narayana, K., Kedar Mallik, M.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-01-2021
• Subjects: Aluminium; Co-Cr-Mo alloy; Electrolysis; Friction; HCl solution; Pin on disc; Wear rate; HCl solution; Pin on disc; Wear rate; Friction; Electrolysis; Co-Cr-Mo alloy; Aluminium
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2020.12.956

Wear always influences the life span of metal components, which should be reduced by proper precautionary measures like lubrication, coatings, reduced surface roughness, etc. Due to exclusive properties like strength to weight ratio and less density, Aluminium (Al) is mostly preferred metal in various fields like aerospace, automobile, satellite parts, and many more. To reduce Al's wear rate and enhance the life span of components, they must be coated with wear resistive materials.
In the present work, an attempt has been made to presage the wear rate of Al component coated with Co-Cr-Mo alloy by electrolysis process for a period of 30 min in 5% Hydrochloric Acid (HCl) solution. The experimentation is done in two parts, bare Al specimen, coated Al specimen, and the results. The Pin on Disc apparatus is used to conduct the wear test with different loads by dry sliding with constant speed and constant time. After experimentation, the results exhibit that the Co-Cr-Mo alloy coating plays a vital role in the decrement of aluminum's specimen under test conditions, and exhibits that aluminum sample coated with Co-Cr-Mo alloy shows nearly 50% less wear rate than the specimen tested without Co-Cr-Mo alloy coating.