Abstract
An investigation was conducted to determine the response of Ti-6A1-6V-2Sn weldments to subsequent heat treatments. The as-welded and post heat treated microstructures were studied using bead-on-plate welds as well as with Gleeble blanks, thermally treated to synthesize the HAZ regions of titanium alloy weldments. Fracture toughness and tensile tests were conducted on specimens from these blanks, and the results were correlated with the microstructural features. Although certain heat treatments recommended for wrought material did not result in the same microstructure or property responses when applied to the HAZ, present structure/ property relationships were used to explain the results. It was noted that the coarsening of alpha plates and the formation of grain boundary alpha appeared to be the microstructural changes which raised the fracture toughness in the HAZ. As these changes proceeded to a very great extent, tensile ductility was sacrificed somewhat for further gains in fracture toughness.
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References
R.E. Lewis and K.C. Wu, “A Study of Weld Heat-Affected Zones in the Titanium 6A1–6V-2Sn Alloy”, The Melding Journal 42 (6), Research Supplement 241s, (1963).
W. Schwenk, W.A. Kaehler, Jr. and J.R. Kennedy, “Weldability of Titanium Alloy Sheets 6A1–6V-2Sn and 8A1-lMo-1V”, The Welding Journal 46 (2), Research Supplement 64–2, (1967T
K.C. Wu, “Dual-Filler-Metal Welding of Ti-6A1–6V2Sn and 6061 Aluminum Plates”, The Welding Journal 48 (8), Research Supplement 359-s, (1969).
D.R. Mitchell, ‘The Weldability of Ti-6A1–6V-2Sn“, Titanium Metals Corp of America, Report No TTL-38, March, 1962.
D.R. Mitchell, “Properties of Welds in Extra Low Interstitial Ti-6A1–6V-2Sn Plate”, Titanium Metals Corp of America, May,1964.
F. Godfrey and•R. Makowski, “Research and Development of Titanium Rocket Motor Cases-Volume V. Evaluation of Candidate Titanium Alloys”, Pratt and Whitney, East Hartford, Technical Report No WAL F66.2/l-14, October, 1963.
J.A. Hall and C.M. Pierce, “Improved Properties of Ti-6A1–6V-2Sn Through Microstructure Modification”, AFML-TR-70–312, December 1970.
R.J. Sajdak, R.F. Geisendorfer, J.A. Hall and C.M. Pierce, “Heat Treatment Study of Beta Extruded Titanium Alloy 6A1–6V-2Sn”, 2nd International Conference on Titanium, to be presented.
T.M.F. Ronald, “The Relation Between the Fracture Behavior of 4340 Bend Specimens and the Observation of Tempered Martensite Embrittlement”, Met. Trans. 1, 2583, (1970).
M.A. Greenfield, Nancy Kuhlken, and H. Margolin, “Fracture Stress and Microstructure of an Alpha-Beta Titanium Alloy”, Met. Trans. 2, 610, (1971).
M.A. Greenfield and H. Margolin, “The Interrelationship of Fracture Toughness and Microstructure in a Ti-5.25A1–5.5V-0.9Fe-0.5Cu Alloy”, Met. Trans. 2, 841, (1971).
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© 1973 Springer Science+Business Media New York
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Simpson, R.P., Pierce, C.M., Wu, K.C. (1973). Microstructure Control in Welds of the Ti-6A1-6V-2Sn Alloy. In: Jaffee, R.I., Burte, H.M. (eds) Titanium Science and Technology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1346-6_41
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DOI: https://doi.org/10.1007/978-1-4757-1346-6_41
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