Enhancing Corrosion and Wear Resistance of Ti6Al4V Alloy Using CNTs Mixed Electro-Discharge Process

This paper presents wear and corrosion resistance analysis of carbon nanotubes coated with Ti-6Al-4V alloy processed by electro-discharge treatment. The reported work is carried out using Taguchi’s L18 orthogonal array to design the experimental matrix by varying five input process parameters i.e.,...

Full description

Saved in:
Bibliographic Details
Published in:Micromachines (Basel) 2020-09, Vol.11 (9), p.850
Main Authors: Singh, Gurpreet, Ablyaz, Timur Rizovich, Shlykov, Evgeny Sergeevich, Muratov, Karim Ravilevich, Bhui, Amandeep Singh, Sidhu, Sarabjeet Singh
Format: Article
Language:English
Subjects:
Biocompatibility
Biological activity
Biomedical materials
Carbon
Cell adhesion & migration
Corrosion
Corrosion prevention
Corrosion resistance
Corrosion resistant alloys
Corrosion tests
Corrosive wear
Design of experiments
Dielectrics
Discharge
electro-discharge treatment
Electrochemical corrosion
Intermetallic compounds
Microhardness
Morphology
Multi wall carbon nanotubes
MWCNTs
Orthogonal arrays
Plasma sintering
Process parameters
Substrates
surface characterization
Surface roughness
Surgical implants
Ti-6Al-4V
Titanium alloys
Titanium base alloys
Transplants & implants
Wear resistance
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents wear and corrosion resistance analysis of carbon nanotubes coated with Ti-6Al-4V alloy processed by electro-discharge treatment. The reported work is carried out using Taguchi’s L18 orthogonal array to design the experimental matrix by varying five input process parameters i.e., dielectric medium (plain dielectric, multi-walled carbon nanotubes (MWCNTs) mixed dielectric), current (1–4 A), pulse-on-time (30–60 µs), pulse-off-time (60–120 µs), and voltage (30–50 V). The output responses are assessed in terms of microhardness and surface roughness of the treated specimen. X-ray diffraction (XRD) spectra of the coated sample reveal the formation of intermetallic compounds, oxides, and carbides, whereas surface morphology is observed using scanning electron microscopy (SEM) analysis. For the purpose of the in-vitro wear behavior of treated samples, the surface with superior microhardness values in plain dielectric and MWCNTs mixed dielectric is compared using a pin-on-disc type wear test. Furthermore, electrochemical corrosion test is also conducted to portray the dominance of treated substrate of Ti-6Al-4V alloy for biomedical applications. It is concluded that the wear-resistant and the corrosion protection efficiency of the MWCNTs treated substrate enhanced to 95%, and 96.63%, respectively.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi11090850