Published date:Apr 15 2019

Journal Title: KnE Engineering

Issue title: XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers”

Pages:170–175

DOI: 10.18502/keg.v1i1.4406

Zhelnina A.V.

Illarionov A.G.

Kalienko M.S.

Popov A.A.

Schetnikov N.V.

The effect of carbon content on microstructure and mechanical properties of the transition (α+β)-titanium alloy Ti–10V–2Fe–3Al in a heat-strengthened state was studied. It was established that with the increase of carbon content in the alloy up to the limit of its solubility in a solid solution, the strength of the alloy increases, the plastic characteristics decrease. When the solubility limit of carbon in a solid solution in an alloy is exceeded, the appearance of titanium-based carbide particles was observed, while the strength of the alloy somewhat decreases, due to the decrease of the effect of solid-solution hardening from the elements present in the alloy, which are partially transferred from the solid solution to the titanium-based carbide particles.

Keywords: titanium alloys, titanium carbides, mechanical properties, hardening heat treatment.

[1] J. D. Cotton, R. D. Briggs, R. R. Boyer, N.V. Shchetnikov, State of the art in beta titanium alloys for airframe applications, JOM. 67 (2015) 1281–1303.


[2] C.C. Chen, R.R. Boyer, Practical considerations for manufacturing high strength Ti10V 2Fe-3Al forgings, JOM. 31 (1979) 33-39.


[3] R.R. Boyer, G.W. Kuhlman, Processing properties relationships of Ti-10V-2Fe-3Al, J. Metall. Trans. A. 18 (1987) 2095-2103.


[4] R. Banoth, R. Sarkar, A. Bhattacharjee, Effect of boron and carbon addition on microstructure and mechanical properties of metastable beta titanium alloys, J. Materials and Design. 67 (2015) 50–63.


[5] S. Zhang, W. Zeng, X. Gao, D. Zhou, Y. Lai, Role of titanium carbides on microstructural evolution of Ti-35V-15Cr-0.3Si-0.1C alloy during hot working, J. of Alloys and Compounds. 684 (2016) 201–210.


[6] A. Szkliniarz, Microstructure and Properties of Beta 21S Alloy with 0.2 wt. % of Carbon, J. Solid State Phenomena. 246 (2016) 19-24.


[7] J. Del Prado, X. Song, D. Hu, X. Wu, The influence of oxygen and carbon-content on aging of Ti-15-3, J. of Materi Eng and Perform. 14 (2005) 728–734.


[8] R. Sarkara, P. Ghosala, K. Muraleedharana, T.K. Nandya, K.K. Ray, Effect of boron and carbon addition on microstructure and mechanical properties of Ti-15-3 alloy, J. Materials Science and Engineering. 528 (2011) 4819–4829.


[9] Z.Q. Chen, D. Hu, M.H. Loretto, X. Wu, Effect of carbon additions on microstructure and mechanical properties of Ti-15-3, J. Materials Science and Technology. 20 (2004) 343–349.


[10] Y.G. Li, P.A. Blenkinsop, M.H. Loretto, D. Rugg, W. Voice, Effect of carbon and oxygen on microstructure and mechanical properties of Tl-25V-15Cr-2Al alloys, J. Acta Mater., 47 (1999) 2889–2905.


[11] M. Yan, M. Qian, C. Kong, M.S. Dargusch, Impacts of trace carbon on the microstructure of as-sintered biomedical Ti–15Mo alloy and reassessment of the maximum carbon limit, J. Acta Biomaterialia 10 (2014) 1014–1023.


[12] A.A. Ilyin, B.A. Kolachev, I.S. Polkin, Titanium alloys. Composition, structure, properties, Moscow, VILS-MATI, 2009.