Wear resistance enhancement of titanium alloy (Ti–6Al–4V) by by ball burnishing proceses

Goutam Devaraya, Revankar and Shetty, Raviraj and Rao, Shrikantha Srinivas and Gaitonde, Vinayak Neelakanth (2018) Wear resistance enhancement of titanium alloy (Ti–6Al–4V) by by ball burnishing proceses. Journal of Materials Research and Technology, 6 (1). pp. 13-32. ISSN 2238-7854

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Abstract

tThe objective of the research was to improve the wear resistance of titanium alloys by ballburnishing process. Burnishing process parameters such as burnishing speed, burnishingfeed, burnishing force and number of pass were considered to minimize the specific wearrate and coefficient of friction. Taguchi optimization results revealed that burnishing forceand number of pass were the significant parameters for minimizing the specific wear rate,whereas the burnishing feed and speed play important roles in minimizing the coefficientof friction. After burnishing surface microhardness increased from 340 to 405 Hv, surfaceroughness decreased from 0.45 to 0.12 �m and compressive residual stress were generatedimmediately below the burnished surface. The optimization results showed that specificwear rate decreased by 52%, whereas coefficient of friction was reduced by 64% as comparedto the turned surface. The results confirm that, an improvement in the wear resistance ofTi–6Al–4V alloy has been achieved by the process of ball burnishing.

Item Type: Article
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 24 Jul 2018 10:48
Last Modified: 24 Jul 2018 10:48
URI: http://eprints.manipal.edu/id/eprint/151649

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