Abstract
We studied the effect of hydrogen on the cyclic endurance of cylindrical specimens made of VT6Ch titanium alloy for various parameters of cyclic loading, coefficients of asymmetry of a cycle, coefficients of stress concentration, and load frequencies. The specimens were cut from plates with a lamellar structure at different angles with the rolling direction. In all cases where hydrogen was present in the solid solution, the limit of its bounded corrosion endurance in the initial state increased. This is probably caused by hardening of the solid solution and by separation of dispersed hydrides. At concentrations of hydrogen ≥0.03% (by mass), under the action of cyclic loading, hydrides separate from the supersaturated solution. They play the role of stress concentrators and lead to a decrease in cyclic endurance.
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REFERENCES
B. A. Kolachev, V. A. Livanov, and A. A. Bukhanova, Mechanical Characteristics of Titanium and its Alloys [in Russian], Metallurgiya, Moscow (1974).
B. B. Chechulin and V. I. Syshchikov, Titanium Alloys in the Engineering Industry [in Russian], Sudpromgiz, Leningrad (1957).
R. Haynes, “Effect of hydrogen on the fatigue behaviour of a titanium-4S% aluminum-4S% manganese alloy,” J. Inst. Metals, 100, 325–329 (1971).
B. B. Chechulin and Yu. D. Khesin, Cyclic and Corrosion Resistance of Titanium Alloys [in Russian], Metallurgiya, 1987 (Moscow).
M. Hempel and E. Hilnhagen, “Longevity studies in pure titanium,” Archiv Eisenhüttenwesen, B33, No. 8, 567–581 (1962).
C. J. Beevers, “Fatigue behaviour of alpha-titanium and alpha-titanium-hydrogen alloys,” in: The Science, Technology and Application of Titanium, Pergamon Press, Oxford (1970), pp. 535–544.
V. N. Goroditskii, L. G. Gerasimova, V. F. Terent'ev, et al., “Effect of hydrogen on cyclic strength of a titanium alloy of the system Ti-Al-Zr,” Metalloved. Term. Obrab. Met., No. 8, 28–30 (1975).
L. E. Matokhnyuk, A. V. Voinalovich, and T. Yu. Yakovleva, “Effect of hydrogenation on fatigue resistance of titanium PT-7M alloy,” Probl. Prochn., No. 8, 70–75 (1988).
A. V. Mal'kov, B. A. Kolachev, M. G. Mishanova, and B. B. Bylov, “Effect of hydrogen on fatigue of VT6 alloy,” Probl. Prochn., No. 3, 73–76 (1984).
W. H. Hartt and L. Liu, “Fatigue behaviour of hydrogenated titanium tube condensators,” Corrosion (USA), 48, No. 2, 171–176 (1992).
S. M. Gurevich, “Brittleness of welds of titanium caused by hydrogen,” Metalloved. Term. Obrab. Met., No. 6, 47–50 (1957).
A. V. Fishgoit and B. A. Kolachev, “Effect of hydrogen on propagation of fatigue cracks in titanium and its alloys,” Fiz.-Khim. Mekh. Mater., 19, No. 5, 29–35 (1983).
L. W. Berger, W. S. Hyler, and R. J. Jaffee, “Effect of hydrogen on fatigue properties of Ti and Ti-Mn alloys,” Trans. Met. Soc. AIME, 212, No. 1, 41–45 (1958).
A. G. Bratukhin, B. A. Kolachev, V. V. Sadkov, et al., Technology of Production of Titanium Aircraft Structures [in Russian], Mashinostroenie, Moscow (1995).
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Kolachev, B.A., Sadkov, V.V., Bylov, B.B. et al. Effect of Hydrogen on Fatigue Resistance of VT6Ch Titanium Alloy. Materials Science 36, 550–555 (2000). https://doi.org/10.1023/A:1011366206122
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DOI: https://doi.org/10.1023/A:1011366206122