Effect of Post-Weld Heat Treatment on Nd: YAG Laser Welded Ti-6Al-4V Alloy Quality

Xin Jin Cao; Guillaume Debaecker; Mohammad Jahazi; Surendar Marya; Jonathan Cuddy; Anand Birur

doi:10.4028/www.scientific.net/MSF.638-642.3655

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HomeMaterials Science ForumMaterials Science Forum Vols. 638-642Effect of Post-Weld Heat Treatment on Nd: YAG...

Effect of Post-Weld Heat Treatment on Nd: YAG Laser Welded Ti-6Al-4V Alloy Quality

Abstract:

The effects of post-weld heat treatment on 3.05-mm thick Ti-6Al-4V alloy were investigated using a 4 kW Nd:YAG laser. Two main defects, underfill and porosity, were observed. The use of filler wire reduced underfill defects but slightly increased porosity. No cracks were detected. The as-welded and stress-relief annealed welds had very similar microstructures, hardness, and tensile properties. However, the post-weld solution heat treatment and aging transformed the martensite in the fusion zone into a coarse interlamellar α-β structure, causing a decrease in ductility but a more homogeneous distribution in the hardness of the welds.

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Periodical:

Materials Science Forum (Volumes 638-642)

Pages:

3655-3660

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.638-642.3655

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Online since:

January 2010

Authors:

Xin Jin Cao, Guillaume Debaecker, Mohammad Jahazi, Surendar Marya, Jonathan Cuddy, Anand Birur

Keywords:

Laser Welding, Nd:YAG Laser, Post Weld Heat Treatment, Ti6Al4V

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References

[1] G. Casalino, F. Curcio and F.M.C. Minutolo: J. Mater. Process. Technol. Vol. 167, No. 2-3 (2005), pp.422-428.

Google Scholar

[2] Technical Data Sheet: Allvac Titanium 6Al-4V Alloy on http: /www. allvac. com (2007).

Google Scholar

[3] Z. Sun, D. Pan and W. Zhang, in: 6th Int. Conf.: Trends in Welding Research, Pine Mountain, Georgia, USA (April 2002), pp.760-767.

Google Scholar

[4] L.W. Tsay and C.Y. Tsay: Int. J. Fatigue Vol. 19, No. 10 (1997), pp.713-720.

Google Scholar

[5] F. Caiazzo, F. Curcio, G. Daurelio and F.M.C. Minutolo: J. Mater. Process. Technol. Vol. 149, No. 1-3 (2004), pp.546-552.

Google Scholar

[6] F. Memola, C. Minutolo, F. Curcio, G. Daurelio and F. Caiazzo, in: XV Int. Symp. on Gas Flow, Chemical Lasers and High-Power Lasers, edited by J. Kodymova, Bellingham, WA (2005), pp.907-912.

DOI: 10.1117/12.611273

Google Scholar