We show the possibility of controlling the structure of titanium alloys of different classes by means of their thermohydrogen treatment and consider the process of structure formation in shaped castings of VT20L alloy under additional alloying with hydrogen. Depending on the hydrogen content in the course of thermohydrogen treatment, the transformation of a course-lamellar structure into a fine-lamellar one with α-particle sizes from several micrometers to nanometers is possible. We describe the mechanism of phase and structural transformations in titanium alloys with a heightened content of β-eutectoid stabilizers (Ti-12Cr) or aluminum (VT6, VT23) under the action of hydrogen. We also show the possibility of producing a composite structure of the β-phase and TiCr2 intermetallic compound or noncoherent particles of the α2-and α-phases, depleted with aluminum.
Similar content being viewed by others
References
A. A. Il'in, B. A. Kolachev, V. K. Nosov, and A. M. Mamonov, Hydrogen Technology of Titanium Alloys [in Russian], Moscow Institute of Steel and Alloys, Moscow (2002).
B. A. Kolachev, A. A. Il'in, V. K. Nosov, and A. M. Mamonov, “Achievements of the hydrogen technology of titanium alloys,” Tekhnol. Legkikh Splavov, No. 3, 10–26 (2007).
S. V. Skvortsova, A. A. Il'in, G. V. Gurtovaya, et al., “Phase and structural transformations taking place in VT20L titanium alloy under the action of hydrogen,” Metally, No. 2, 45–53 (2005).
A. M. Mamonov, A. A. Il'in, S. V. Skvortsova, et al., “Thermohydrogen treatment as an efficient technological process of optimizing the structure and mechanical properties of high-temperature titanium alloys with intermetallic hardening of Ti3 Al,” Tekhnol. Legkikh Splavov, No. 1–4, 52–58 (2005).
A. A. Il'in, M. Yu. Kollerov, S. V. Skvortsova, et al., “Diagrams of the phase composition of hardened hydrogen-containing titanium alloys with β-isomorphic stabilizers,” Metally, No. 3, 67–72 (2002).
S. V. Skvortsova, A. A. Il'in, V. V. Zasypkin, et al., “Phase and structural transformations in titanium alloys with β-eutectoid stabilizers under the action of hydrogen,” Metally, No. 3, 56–64 (2006).
A. A. Il'in, S. V. Skvortsova, A. M. Mamonov, and M. Yu Kollerov, “Effect of hydrogen on phase and structural transformations in titanium alloys of different classes,” Fiz.-Khim. Mekh. Mater., 42, No. 3, 33–39 (2006).
A. A. Il'in, S. V. Skvortsova, A. M. Mamonov, et al., “Control of the complex of mechanical properties of titanium alloys by modification of their structure using the methods of thermohydrogen treatment,” Titan, No. 1, 25–29 (2004).
Author information
Authors and Affiliations
Additional information
Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 44, No. 3, pp. 28–34, May–June, 2008.
Rights and permissions
About this article
Cite this article
Il’in, A.A., Skvortsova, S.V. & Mamonov, A.M. Control of the structure of titanium alloys by the method of thermohydrogen treatment. Mater Sci 44, 336–341 (2008). https://doi.org/10.1007/s11003-008-9088-9
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11003-008-9088-9