Hydrogen Behavior in GTA Welded Ti-6Al-4V and Beta-21S Aerospace Applicative Titanium Alloys


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Ti-6Al-4V and β-21S (Ti-15Mo-3Al-3Nb-0.3Si, wt%) titanium alloys were exposed to a hydrogen-containing environment, introduced by Gas-Tungsten Arc welding via a mixed Ar + 5% H2 shielding gas. The different characteristics of hydrogen absortion/desorption behavior and trapping in the welded Ti-6Al-4V and β-21S alloys were studied by means of thermal desorption spectroscopy (TDS). Thermal spectra analysis is supported by data from a variety of other experimental techniques, e.g., Leco hydrogen determinator and microstructure investigations. In the specimens welded in hydrogen-containing environment, no cracking was observed. However, the complex process of hydrogen desorption was found to be significantly affected by the microstructure developed in the alloys after welding. The unique microstructural morphology, the presence of potential irreversible trapping sites and phase transitions (oxide dissociation) were considered to be the potential parameters affecting the hydrogen desorption behavior from the alloys.



Materials Science Forum (Volumes 546-549)

Edited by:

Yafang Han et al.




E. Tal-Gutelmacher et al., "Hydrogen Behavior in GTA Welded Ti-6Al-4V and Beta-21S Aerospace Applicative Titanium Alloys", Materials Science Forum, Vols. 546-549, pp. 1413-1420, 2007

Online since:

May 2007




[1] F. H. Froes, D. Eylon and H. Bomberger, in: Titanium Technology: Present Status and Future Trends, edited by F. H. Froes, D. Eylon and H. Bomberger, TDA, Dayton, OH, (1985).

[2] F. H. Froes, T. L. Yau and H. G. Weidenger, in: Titanium, Zirconium and Hafnium, - Materials Science and Technology - Structure and Propoerties of Nonferrous Alloys, edited by K. H. Matucha, VCH Weinheim, FRG, (1996), p.401.

[3] Y. Murakami, O. Izumi and T. G. Nishimura in: Titanium Science and Technology, edited by G. Luterjing, U. Zwicker and W. Bunk, Deutsche Gesellschaft fur Metallkunde e.V., Germany, Vol. 4 (1985), p.1403.

[4] J. P. Immarigeon, R. T. Holt, A. K. Koul, L. Zhao, W. Wallace and J. C. Beddoes, Mat. Characterization Vol. 35 (1995), p.41.

[5] J. W. Elmer, T. A. Palmer, S. S. Babu, W. Zhang and T. DebRoy, J. Appl. Phys. Vol. 95(12) (2004), p.8327.

[6] J. Lindemann and L. Wagner, in: Titanium '98, edited by L. Zhou, D. Eylon, G. Lutjering and C. Ouchi, International Academic Publishers, Beijing, (1999), p.570.

[7] D. R. Mitchell and T. J. Tucker, Welding J. Vol. 48(1) (1969), p. 23s.

[8] W. Schwenk, W. A. Kaehler and J. R. Kennedy, Welding J. Vol. 46(2) (1967), p. 64s.

[9] R. P. Simpson and K. C. Wu, Welding J. Vol. 53(1) (1974), p. 13s.

[10] R. E. Lewis and K. C. Wu, Welding J. Vol. 42(6) (1963), p. 241s.

[11] W. K. C. Yung, B. Ralph, W. B. Lee and R. Fenn, J. Mater. Process. Tech. Vol. 63 (1997), p.759.

[12] D. N. Williams, F. R. Schwarz and R. I. Jaffee, Trans. Amer. Co. Metals Vol. 51 (1959), p.802.

[13] G. F. Pittinato and S. F. Frederick, Metall. Trans. Vol. 1 (1970), p.3241.

[14] D. A. Meyn Met. Trans. Vol. 5 (1974), p.2405.

[15] N. R. Moody and W. W. Gerberich, Met. Trans. A. Vol. 13 (1982), p.1055.

[16] H. G. Nelson, in: Hydrogen Embrittlement - Treatise on Materials Science and Technology - Embrittlement of Engibeering Alloys, edited by C. L. Briant and S. K. Baberji, Academic Press, New York, NY, (1983), p.275.

DOI: https://doi.org/10.1016/b978-0-12-341825-8.50014-3

[17] E. Tal-Gutelmacher and D. Eliezer, Mat. Trans. Vol 45(5) (2004), p.1594.

[18] E. Tal-Gutelmacher and D. Eliezer, JOM Vol. 57(9) (2005), p.46.

[19] E. Tal-Gutelmacher, D. Eliezer and D. Eylon: Mater. Sci. Eng. A. Vol. 381 (2004), p.230.

[20] D. Eliezer, E. Tal-Gutelmacher, C. E. Cross and T. Boellinghaus: Mater. Sci. Eng. A. Vol. 421 (2006), p.200.

[21] H. E. Kissinger: Anal. Chem. Vol. 29 (1957), p.1702.

[22] A. J. Kumnick and H. H. Johnson, Acta Metall. Vol. 28 (1980), p.33.

[23] G. M. Pressouyre, Metall. Trans. A. Vol. 10 (1979), p.1571.

[24] G. A. Young, J. R. Scully, Scripta Metall. Mater. Vol. 28 (1993), p.507.

[25] M. Gaudett and J. R. Scully: J. Electrochem. Soc. Vol. 148 (2001), p. B368.