Conclusions
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1.
For technological titanium containing 0.025% H after hardening causing the transition of hydrogen to a solid solution, are characteristic two plasticity minima, at +20 and −80°C. The biggest decrease of relative contraction is observed at −80°C. After aging for a year hydrogen changes to hydrides. Here the plasticity of the commercial titanium decreases with falling temperature but its value remains higher than the minimum plasticity of hardened specimens at corresponding temperatures.
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2.
For VT3-1 α+β-alloy containing 0.03% H alongside with the minimum of ψ in the range of 0 to −20°C is observed its sharp decrease at −60 to −80°C. At lower temperatures ψ increases.
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3.
In the VT15 β-alloy hydrogen embrittlement appears at temperatures of 0 and −40°C.
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Literature cited
B. A. Kolachev, V. A. Livanov and A. A. Bukhanova, Mechanical Properties of Titanium and Its Alloys [in Russian], Metallurgiya, Moscow (1974).
L. S. Moroz and B. B. Chechulin, Hydrogen Brittleness of Metals [in Russian], Metallurigya, Moscow (1967).
B. S. Krylov, "Effect of hydrogen on mechanical properties of VT15 alloy and on the mechanism of hydrogen embrittlement," Izv. AN SSSR, Met., No. 4, 147–155 (1967).
S. L. Gudkov, Mechanical Properties of Industrial Nonferrous Metals at Low Temperatures [in Russian], Metallurgiya, Moscow (1971).
R. I. Jaffee et al., "Effect of testing variables on the hydrogen embrittlement of titanium and Ti-8Pct Mn alloy," J. Met.,8, No. 8, Sec. 2, pp. 907–913 (1956).
G. Hortz, "Changes in properties of Va group of metals caused by dissolved hydrogen, nitrogen and oxygen," Metall., No. 8, 731–737 (1976).
B. A. Kolachev, Hydrogen Brittleness of Metals [in Russian], Metallurgiya, Moscow (1985).
A. K. Litvin and V. I. Tkachev, "The effect of easing the deformation and fracture of metals by the presence of hydrogen," Fiz. Khim. Mekh. Mater.,12, No. 2, 27–34 (1976).
N. A. Galaktionova, Hydrogen in Metals [in Russian], Metallurgiya, Moscow (1967).
E. G. Maksimov and O. A. Pankratov, "Hydrogen in metals," in: Achievements in Physical Sciences, Academy of Sciences of the USSR, Nauka, Moscow, 116, No. 3, 385–412 (1975).
V. P. Krylov and Z. L. Zlatin, "Deformability of commercial iron," Metalloved. Term. Obrab. Met., No. 12, 41–43 (1976).
Additional information
Leningrad Naval Engineering College. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 48–50, July, 1990.
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Krylov, V.P., Panov, V.I. Temperature dependence of the plasticity of hydrogenated commercial titanium and VT3-1 and VT15 alloys. Met Sci Heat Treat 32, 528–531 (1990). https://doi.org/10.1007/BF00700326
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DOI: https://doi.org/10.1007/BF00700326