In this study, the tool wear and surface integrity during machining of wrought and Selective Laser Melted (SLM) titanium alloy (after heat treatment) are studied. Face turning trails were carried out on both the materials at different cutting speeds of 60,120 and 180 m/min. Cutting tools and...

Titanium alloy is having a widespread application in the field of aerospace, marine and automobile industries. However, its machining is still a challenging task for the manufacturing industries due to the chemical reactivity and poor thermal conductivity properties. In this study, machining of...

Cracks-free wear resistance coatings are fabricated by laser surface nitriding pure titanium and Ti-6Al-4V in an open system. The titanium nitrides which are formed in situ in the top layers of the samples are undeveloped dendritic, and thus reduce the possibility of the crack formation in the...

Composite coatings are produced by laser surface alloying of Ti-6Al-4V with B+Ti and B+Ni+Ti mixed powders. Test results show that the coatings have high hardness, excellent wear and oxidation resistance compared with the as-received sample. In addition, the samples alloyed with B+Ni+Ti have...

The effect of laser processing parameters on the microstructure and quality of the coatings fabricated on titanium alloy has been investigated. Results show that the increase of the output power and the decrease of the scanning speed result in the thickness increase and the microstructure...

In the present study, TiN coatings have been deposited on D2 tool steel substrates by using cathodic arc physical vapor deposition technique. The objective of this research work is to determine the usefulness of TiN coatings in order to improve the micro-Vickers hardness and friction coefficient...

A study has been made on TiN coatings deposited on D2 tool steel substrates by using commercially available cathodic arc evaporation, physical vapor deposition technique. The goal of this work is to determine the usefulness of TiN coatings in order to improve the micro-Vickers hardness,...

We investigate the friction coefficient and radius of curvature effects upon traffic flow analytically and numerically. A new model is proposed to describe the motion of vehicles running on a curved road. The stability condition is obtained by the use of control theories. The nonlinear analysis...

In the present study, the effect of various N2 gas flow rates on friction coefficient and surface roughness of TiN-coated D2 tool steel was examined by a commercially available cathodic arc physical vapor deposition (CAPVD) technique. A Pin-on-Disc test was carried out to study the Coefficient...

A new architecture for a mobile ad-hoc communication network is developed, and simulation results show that the proposed MAC protocol can enhance transmission success probability from 0 to 97%. Two novel applications of vehicle-to-vehicle networks are then developed and simulated. The first...