Prediction of Surface Roughness During Dry Sliding Wear: Characteristics of Ti-6Al-4V Alloys

Prediction of Surface Roughness During Dry Sliding Wear: Characteristics of Ti-6Al-4V Alloys

Basant Lal, Abhijit Dey, Mohamamd Farooq Wani
Copyright: © 2022 |Pages: 12
DOI: 10.4018/IJSEIMS.2022010104
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Abstract

Due to the relatively low strength and poor wear resistance of unalloyed titanium and its good mechanical properties, corrosion resistance, and biocompatibility. Ti6Al4V has been extensively used in various type of application including aerospace, biomedical and offshore industries. The goal of this research is to enhance the surface properties of the high strength alloys are examine such as Ti6Al4V pin sliding against Al2O3disc, due to the various surfaces roughness parameters. The COF and the wear rate were found to be lower at higher applied load due to higher frictional heating leading to thermal oxidation and thereby formation of several mm thick tribo-layers on the worn surfaces. Characterization of the tribological sample was performed using a scanning electron microscope (SEM) equipped with energy dispersive X-ray analysis (EDAX) to ensure that the wear pattern and debris morphologies of the Ti6Al4V and alumina disks were distinct, suggesting a surface roughness value determined by 3D profilometer at various load and sliding speed of 0.01ms-1.
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Introduction

Titanium and its alloys are attracting significance as spinal implant materials because of their high specific strength, strong biocompatibility, and efficient corrosion resistance (Merola et al., 2019). Due to its superior strength, Ti6Al4V with extra-low interstitial was commonly used as a substitute material for spinal fixing instruments. The vanadium in Ti6Al4V, however is venomous to the physical structure and thus the modulus of Elasticity of Ti6Al4V (about 110 GPa) has higher than plant tissue (about 30 GPa), which causes stress shielding (Zivic et al., 2011). Moreover, due to non-toxicity, it exhibits good biocompatibility and as it shows the elastic modulus of alumina (about 90 GPa) is less than that of Ti6Al4V (Amalraju et al., 2012; Lee et al., 2014).

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