Ultrasonic Characterization of Titanium 6211 Weldments

  • Sanford R. Buxbaum
  • Robert E. GreenJr.


The use of ultrasonic testing for the inspection of thick section weldments in titanium alloys requires careful acoustic characterization of the materials and weldments in question. In the present work ultrasonic wave velocity measurements were performed on a series of test specimens of titanium alloy weldments and base plate material. Data provided by x-ray diffraction analysis and scanning electron microscopy were correlated with the ultrasonic results.

Dissolved oxygen contamination during GTA and GMA welding of titanium alloys can result in severe embrittlement of the weld region. In order to evaluate the feasibility of ultrasonic testing for quantitatively detecting the presence of interstitial gas contamination in weldments of Ti-6211, ultrasonic wave velocity and ultrasonic attenuation measurements were performed on a series of five specimens with nominal oxygen levels of 0.07, 0.14, 0.20, 0.24 and 0.29 percent by weight. Density measurements, in addition to the ultrasonic wave velocity data, enabled relative determination of elastic moduli. Variations in the ultrasonic data were correlated with results from scanning electron microscopy and hardness testing.


Weld Metal Beta Phase Weld Region Ultrasonic Attenuation Alpha Phase 
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  1. 1.
    “Glossary of Metallurgical Terms and Engineering Tables,” American Society for Metals, Ohio (1979).Google Scholar
  2. 2.
    R. E. Green Jr., “Treatise on Materials Science and Technology,” Vol. 3, Academic Press, New York (1973).Google Scholar
  3. 3.
    C. Zener, Relation Between Residual Strain Energy and Elastic Moduli, Acta Cryst 2:163 (1979).CrossRefGoogle Scholar
  4. 4.
    J. N. Pratt, W. J. Bratina, and B. Chalmers, Internal Friction in Titanium and Titanium-Oxygen Alloys, Acta Met. 2:204 (1954).CrossRefGoogle Scholar
  5. 5.
    C. F. Ying and R. Truell, The Effect of Hydrogen on Ultrasonic Attenuation and Velocity Measurements in Titanium, Acta Met. 2:374 (1954).CrossRefGoogle Scholar
  6. 6.
    N. Hsu and H. Conrad, Ultrasonic Wave Velocity Measurements on Titanium Oxygen Alloys, Scripta Met. 5:905 (1971).CrossRefGoogle Scholar
  7. 7.
    D. H. Chung, D. J. Silversmith, and B. B. Chick, A Modified Ultrasonic Pulse-Echo-Overlap Method for Determining Sound Velocities and Attenuation of Solids, Rev. Sci. Inst. 40:718 (1969).CrossRefGoogle Scholar
  8. 8.
    E. G. Henneke II and R. E. Green Jr., Compilation of Elastic Wave Modes in Hexagonal Metals, J. Appl. Phys. 40:3626 (1969).CrossRefGoogle Scholar
  9. 9.
    R. I. Jaffee and I. E. Campbell, Alloys of Titanium with Carbon, Oxygen, and Nitrogen, Trans. AIME 188:1261 (1950).Google Scholar
  10. 10.
    R. I. Jaffee and I. E. Campbell, The Effect of O, N, and H on Iodide Refined Titanium, Met. Trans. 185:646 (1949).Google Scholar
  11. 11.
    W. L. Finlay and J. A. Snyder, “Effects of Three Interstitial Solutes (N, O, C) on the Mechanical Properties of High-Purity Alpha Ti”, Trans. AIME 188:277 (1950).Google Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • Sanford R. Buxbaum
    • 1
  • Robert E. GreenJr.
    • 1
  1. 1.Materials Science and Engineering DepartmentThe Johns Hopkins UniversityBaltimoreUSA

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