s. Thirumalvalavan

• M.E. Ph.D.
• Arunai Engineering College

Background Thermal spray coatings have emerged as a pivotal technology in materials engineering, primarily for augmenting the characteristics related to wear and tribology of metallic substrates. Method This study aimes to delve into applying High-Velocity Oxygen Fuel (HVOF) thermalsprayed WC-Co nanocoatings on Titanium Grade-5 alloy (Ti64). The c...

The number of vehicles on the road has increased by a factor of ten in recent years. As a result of the pollutants emitted by these vehicles on and off the road, ambient air quality has deteriorated significantly. It also increases greenhouse gas emissions as more CO2 is discharged into the atmosphere. As a result, researchers are concentrating on...

The impact of high-velocity oxygen fuel (HVOF) process variables on the wear and mechanical properties of SiC coating on Ti-6Al-4V (grade-5) alloy is studied. Spraying factors such as spraying distance, oxygen flow rate, feed rate of SiC powders, and rate of flow of carrier gas (hydrogen) are optimized to obtain lesser wear rate, friction coefficie...

It is the necessary to predict the endurance capability of the mechanical element with its increased application and complexity. The present research work estimates the stress variation and displacement characteristics using finite element analyses of Single Row SKF6205 Deep Groove Ball Bearing under radial and axial loadings. The vibration analyse...

In this present investigation, wear studies on uncoated Ti-6Al-4V alloy and HVOF coated alloy was studied. For improving the wear resistance of titanium alloy, SiC coating is performed with the help of HVOF thermal spray coating method. Characterisation of uncoated and coated surface was also made by means of micro hardness and tensile test. Dry sl...

In this present investigation, wear studies on uncoated Ti-6Al-4V alloy and HVOF coated alloy was studied. For improving the wear resistance of titanium alloy, SiC coating is performed with the help of HVOF thermal spray coating method. Characterisation of uncoated and coated surface was also made by means of micro hardness and tensile test. Dry sl...

The aim of this investigation is to improve the surface hardness and to ameliorate the resistance against wearing of the Ti-6Al-4V alloy by SiC coating, engrossed by embracing Taguchi's DoE and Grey relational analysis through optimizing the HVOF spray parameters like spray distance, oxygen flow rate and thickness of coating. Relationship between H...

Aluminium alloys are broadly used as a main matrix element in composite materials. The present work is aimed to fabricate and evaluate the microstructure, tensile properties, hardness and impact strength of aluminium matrix composites consists of aluminium alloy LM25matrix and fused silica-SiO 2 particulates as the reinforcement (size 150-250µm) in...

Abstract: Titanium alloys are extensively used in various fields of engineering, medicine, aerospace and marine due to their excellent mechanical properties. The response of the Ti alloys for its wear resistance is very poor. In this research the wear behaviour of the Ti alloys is improved by the heat treatment process. In this research, the implan...

Purpose – Automobiles have always been a major cause of air pollution. The vehicular emission contains several harmful pollutants that affect the surroundings and living beings. Mild CO exposure leads to headaches or unconsciousness. CO is also responsible for the global warming as well. CO is mainly generated in the IC engine due to incomplete com...

In this present paper thermal spray surface modification technique has been used to enhance the corrosion resistances of EN8 steel substrate. After an exhaustive literature survey alloy powder Al 2 O 3 , TiO 2 have been selected to deposit on the substrate steel specimen with help of thermal spray techniques. The corrosion resistance of the coated...

In this present paper thermal spray surface modification technique has been used to enhance the corrosion resistances of EN8 steel substrate. After an exhaustive literature survey alloy powder Al 2 O 3 , TiO 2 have been selected to deposit on the substrate steel specimen with help of thermal spray techniques. The corrosion resistance of the coated...

Magnesium alloys are the very progressive materials whereon is due to improve their end-use properties. Especially, wrought Mg alloys attract attention since they have more advantageous mechanical properties than cast Mg alloys. Investigations were carried out the effects of heat treatment on tensile strength, hardness and microstructure of AZ61A m...