A comparative study of electrochemical corrosion behavior in Laser and TIG welded Ti–5Al–2.5Sn alloy
TLDR
In this paper, a bead-on-plate (BoP) configuration was used for welding of 1.6mm thick Ti-5Al-2.5Sn plates, which led to the formation of complete α′ martensitic structure in laser welds and acicular α along with α− martensite within coarse prior β grains.Abstract:
Corrosion behavior of TIG and laser welded Ti–5Al–2.5Sn alloy was compared using different electrochemical techniques. Bead on plate (BoP) configuration was used for welding of 1.6 mm thick Ti–5Al–2.5Sn plates which led to the formation of complete α′ martensitic structure in laser welds and acicular α along with α′ martensite within coarse prior β grains was observed in TIG welds. Potentiodynamic and cyclic polarization were carried out in 5, 7 and 9 M HNO3 to study the effect of concentration on the galvanic corrosion of laser and TIG welded Ti–5Al–2.5Sn. The oxide layer developed after 192 h of immersion in fuming HNO3 was studied using electrochemical impedance spectroscopy (EIS) and SEM. All the samples showed good passivity but different oxidation behavior was observed mainly because of the surface modification after the welding operation.read more
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Mechanical, biocorrosion, and antibacterial properties of nanocrystalline TiN coating for orthopedic applications
M.A. Hussein,N.K. Ankah,A. Madhan Kumar,Mohamed Abdul Azeem,S. Saravanan,Ahmad A. Sorour,N. Al Aqeeli +6 more
TL;DR: In this article, a nanocrystalline TiN ceramic coating was synthesized using cathodic arc-physical vapor deposition (PVD) on biomedical Ti6Al4V substrates.
Journal ArticleDOI
Effect of solution and aging treatments on corrosion performance of laser solid formed Ti-6Al-4V alloy in a 3.5 wt. % NaCl solution
TL;DR: In this article, the effect of the SAT on the electrochemical properties of the LSFed Ti-6Al-4V in a 3.5-wt. NaCl solution was studied using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques.
Journal ArticleDOI
Optimization of Melt Zone Area for Electron Beam Welded Hastelloy C-276 Sheet and Study of Corrosion Resistance of the Optimized Melt Zone in 3.5 wt% NaCl Aqueous Solution
TL;DR: In this paper, an optimization of process parameters for electron beam welding of 2.6mm-thick Hastelloy C-276 sheet has been carried out to obtain weld bead having through-penetration and minimum weld (or melt) zone cross-sectional area.
Journal ArticleDOI
Surface transformation hardening of Ti-5Al-2.5Sn alloy by pulsed Nd:YAG laser: an experimental study
TL;DR: In this article, surface hardening of Ti-5Al-2.5Sn alloy was performed using a pulsed Nd:YAG laser, and the effect of laser parameters including laser frequency, laser pulse width, laser speed, and focal point position was investigated on the microstructure, geometrical dimensions of hardened zone (hardened width, hardened depth, and entry angle of hardened zones), and micro-hardness.
Journal ArticleDOI
Pulsed laser butt welding of AISI 1005 steel thin plates
Mariane Chludzinski,R.E. dos Santos,Cristina Churiaque,Severo Raul Fernandez-Vidal,M. Ortega-Iguña,José María Sánchez-Amaya +5 more
TL;DR: In this paper, a combination of the laser beam power, pulse duration and spot diameter is used to obtain high quality joints of steel thin plates, and the tensile test performed at samples extracted from double sided laser welds showed good resistance results, fracturing at the base material of joints.
References
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Electron beam welding, laser beam welding and gas tungsten arc welding of titanium sheet
TL;DR: In this paper, high vacuum electron beam welding (EBW-HV), CO2 laser beam welding and gas tungsten arc welding (TIG), as well as optical microscope (OM) observation and microhardness measuring of 0.5 mm thick sheets of commercial purity titanium (C.P. Ti) have been studied via EBW, HV, LBW and TIG.
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A comparative study of pulsed Nd:YAG laser welding and TIG welding of thin Ti6Al4V titanium alloy plate
TL;DR: In this paper, the properties of the Ti6Al4V titanium alloy joints between pulsed Nd:YAG laser beam welding and traditional fusion welding were compared, and it can be concluded that pulsed nd:yAG laser welding is much more suitable for welding the thin titanium alloy plate than TIG welding.
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