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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Fallah, M. M.
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Publications (4/4 displayed)
- 2020Investigating the Effect of High Power Diode Laser (HPDL) Surface Treatment on the Corrosion Behavior of 17-4 PH Martensitic Stainless Steel
- 2019Nd:YAG laser welding of Ti 6-Al-4V: Mechanical and metallurgical properties
- 2018Multi-response Optimization of CO2 Laser Welding of Rene 80 Using Response Surface Methodology (RSM) and the Desirability Approach
- 2018Experimental Study of Surface Hardening of AISI 420 Martensitic Stainless Steel Using High Power Diode Lasercitations
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article
Nd:YAG laser welding of Ti 6-Al-4V: Mechanical and metallurgical properties
Abstract
Titanium and their alloys have high strength to weight ratio, good corrosion resistance and high melting point temperature lead to their application in engineering. Ti-6Al-4V alloy has been widely used in medical, chemistry and aerospace industries. In this research, laser welding of Ti-6Al-4V sheet with the thickness of 1.7 mm performed using a 400 W pulsed Nd:YAG laser. The effects of laser peak power, pulse duration and laser pulse energy on the weld bead profile, weld microhardness, tensile strength and microstructure were studied. Results showed that by increasing laser peak power, decreasing pulse duration and increasing laser pulse energy, the weld penetration increases. Metallurgical observations revealed that welded zone comprises of acicular α phase within prior coarse β grains. Microhardness distribution is more uniform in welded zone. The microhardness value in the welded zone is the highest which is attributed to high martensitic phase content in the welded zone. The ultimate tensile strength (UTS) values show the variation from 649 to 998 MPa in the Nd:YAG laser welded samples.