Thermal Effects of Continuous Laser Treatment on Ti-6 Al(wt%)-4V(wt%) Titanium Alloy

J.D. Puerta Velásquez; L. Lavisse; J.C. Kneip; H. Andrzejewski; P. Chevrier; Bernard Bolle; Albert Tidu; S. Matteï

doi:10.4028/www.scientific.net/MSF.595-598.1033

Paper Titles

High Temperature Oxidation and Oxidation-Induced Degradation of Alumina Formers
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The Influence of H₂O on Iron Oxidation at 600°C: A Microstructural Study
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The Effect of Additional Elements on Oxide Scale Evolution of Fe-20at.%Cr-10at.%Al Alloy at 900 °C in Air
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On the Mutual Interaction between Mechanical Stresses and Internal Corrosion during Isothermal and Cyclic Oxidation of Nickel-Base Superalloys
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Thermal Effects of Continuous Laser Treatment on Ti-6 Al(wt%)-4V(wt%) Titanium Alloy
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Void Formation in Growing Oxide Scales with Schottky Defects and P-Type Conduction
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Oxidation and Nitridation of Pure Chromium at Elevated Temperature in Synthetic Air – Effect of Silicon Addition
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The Effect of Copper and Ceria Additions on the High Temperature Oxidation of Nickel
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Oxidation Performance of High Temperature Mo-Si-B Alloys and Coatings
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Thermal Effects of Continuous Laser Treatment on Ti-6 Al(wt%)-4V(wt%) Titanium Alloy

Abstract:

A titanium alloy Ti-6 Al(wt%)-4V(wt%) was treated in air by Nd:YAG laser radiation (wavelength of 1.064 %m) in continuous mode. Targets were irradiated globally with different levels of energy (accumulated fluence) at constant power. Different focal lengths and beam displacement velocities were used. Cross section microstructural observations were carried out by scanning electron microscopy. Backscattered electron imaging reveals microstructural modifications in samples. A structural phase transformation of beta (bcc) to alpha prime (hcp) phase was observed. The depth of the transformed zone observed by phase transformation is dependent on the treatment parameters. Conformity between microstructural observations and the treatment parameters is discussed with reference to thermal simulations.