Investigation of Mechanical and Tribological Characteristics of Medical Grade Ti6al4v Titanium Alloy in Addition with Corrosion Study for Wire EDM Process

Abstract

Metals used in biomedical applications are frequently coated to prevent oxidation and metallic ion release, both of which can be harmful due to toxic effects. To prevent these adverse effects of metals, researchers have focused their efforts on developing various coating techniques, facilitating surface coating, or obtaining functional surfaces. (WEDM) is now considered a difficult method of obtaining functional surfaces for medical applications. The properties of the surface and subsurface layers obtained by the WEDM method are particularly interesting in this regard. The analysis utilised RSM-based computational technique to evaluate the WEDM characteristics (MRR SR) of Ti6Al4V Titanium Alloy in biomedical applications. The biggest drawback of the material in the biomedical industry, which includes orthopedic applications and dental implants, would be that it releases harmful atoms such as iron, chromium, and nickel into the bodily fluid environment. To combat the problems, a hydroxyapatite layer applied to the metal implant improves biocompatibility, osteocompatibility, and antimicrobial properties. By comparing the Modified Differential Evolution (MDE) approach to the basic differential evolution (DE) optimization strategy, the effectiveness of the MDE approach has been established. According to the cyclic polarized test, the Hap coated Titanium material had better corrosion resistance than the pure sample. The Hap coated titanium material has a higher zone of inhibition than the pure sample. The next step is to synthesis hydroxyapatite from cuttlebone, which is then electrodeposited onto titanium. FTIR, electrochemical tests, FESEM, and SEM were used to describe the coated sample, as well as an antibacterial test using E. Coli and B. Cereus bacteria. Because it is porous, the Hap coating helps bone tissue growth by preventing detrimental metal ions from escaping into the biological medium. The corrosion inhibition efficiency of the coated sample was performed in SBF (NaHCO3—0.35 g/L, MgCl2.6H2O—0.30 g/L, CaCl2·2H2O—0.37 g/L, K2HPO4. 3H2O—0.23 g/L, Na2SO4—0.071 g/L, NaCl—7.99 g/L, KCl—0.22 g/L, Tris’s buffer—6.063 g/L) solution using the potentiodynamic polarisation method and the solution pH was maintained.

A review on Wire-EDM of bio titanium

“…Zinc cozted brass wire was found effective in material rate improvement and recast layer reduction. Prakash et al (2022) found favourable corrosion behavior, mechanical and tribological characteristics of Ti6al4v, machined by WEDM. Kumar et al (2019) found good metallurgical properties for WEDM machined titanium.…”

The Effect of GTAW Variants on Tensile and Microstructural Properties of AZ31B Magnesium Alloy Joints

“…However, the physical features of magnesium may readily produce several processing issues and welding aws such as oxide coatings, fractures, and porosity. High thermal conductivity, melting and boiling temperatures, high solidi cation shrinkage, low viscosity, and good hydrogen solubility are just a few of magnesium's unique qualities [6]. It also has a strong tendency to oxidise and has low melting and boiling temperatures.…”

Effects of Solutionizing and Aging Alteration on Tensile Behavior of Stir Cast LM4-Si3N4 Composites

“…Our work focuses on LM4 (Al-Si hypoeutectic) alloy because of its low melting point and other decent mechanical properties, as well as its ability to retain tensile strength up to 200°C operating temperature [4]. The mechanical properties of this alloy can be improved by adding reinforcements such as TiB2, B4C, and Al2O3 [5]- [8]. We chose Si3N4 as a ceramic reinforcement for the composites fabrication in our study because it offers a favorable combination of physical and mechanical properties.…”