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

Abstract:

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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.

Info:

Periodical:

Materials Science Forum (Volumes 595-598)

Edited by:

Pierre Steinmetz, Ian G. Wright, Alain Galerie, Daniel Monceau and Stéphane Mathieu

Pages:

1033-1038

DOI:

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

Citation:

J.D. Puerta Velásquez et al., "Thermal Effects of Continuous Laser Treatment on Ti-6 Al(wt%)-4V(wt%) Titanium Alloy", Materials Science Forum, Vols. 595-598, pp. 1033-1038, 2008

Online since:

September 2008

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$35.00

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