Wear resistance enhancement of titanium alloy (Ti-6A1-4V) by ball burnishing process

被引：203

作者：

Revankar, Goutam Devaraya ^{[1
]}

Shetty, Raviraj ^{[2
]}

Rao, Shrikantha Srinivas ^{[3
]}

Gaitonde, Vinayak Neelakanth ^{[4
]}

机构：

[1] Tontadarya Coll Engn, Dept Mech Engn, Gadag, India

[2] Manipal Inst Technol, Dept Mech & Mfg Engn, Manipal, India

[3] Natl Inst Technol Karnataka, Dept Mech Engn, Surathkal, India

[4] BVB Coll Engn & Technol, Dept Ind & Prod Engn, Hubli, Karnataka, India

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2017年 / 6卷 / 01期

关键词：

Titanium alloy (Ti-6A1-4V); Taguchi technique; Ball burnishing; Wear rate; Coefficient of friction; DRY SLIDING WEAR; SURFACE-ROUGHNESS; TI-6AL-4V ALLOY; TRIBOLOGICAL PROPERTIES; PROCESS PARAMETERS; FATIGUE BEHAVIOR; STEEL; FINISH; HARDNESS; FORCE;

D O I：

10.1016/j.jmrt.2016.03.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The objective of the research was to improve the wear resistance of titanium alloys by ball burnishing process. Burnishing process parameters such as burnishing speed, burnishing feed, burnishing force and number of pass were considered to minimize the specific wear rate and coefficient of friction. Taguchi optimization results revealed that burnishing force and 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 coefficient of friction. After burnishing surface microhardness increased from 340 to 405 Hv, surface roughness decreased from 0.45 to 0.12 mu m and compressive residual stress were generated immediately below the burnished surface. The optimization results showed that specific wear rate decreased by 52%, whereas coefficient of friction was reduced by 64% as compared to the turned surface. The results confirm that, an improvement in the wear resistance of Ti-6A1-4V alloy has been achieved by the process of ball burnishing. (C) 2016 Brazilian Metallurgical, Materials and Mining Association. Published by Elsevier Editora Ltda.

引用

页码：13 / 32

页数：20

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