Features of Structural-Phase Transformations during Oxidation of Metals with Bulk Submicrocrystalline Structure and Fine Metal Powders

Abstract:

The oxidation processes for compact and powdery samples of titanium, copper, and molybdenum with different volume structure and dispersivity were studied using thermal analysis, electron microscopy, and X-ray diffraction. It is established that producing of metals with a modified structure under conditions of high-energy impact (severe plastic deformation, electric explosion of a thin wire) in accordance with intermediate annealing leads to an increase in the content of oxygen in the form of solid solutions and oxides; the oxide component’s share, form and localization within the material depend on physicochemical properties of both metal and oxide . It is shown that the structural-phase transformations of the oxide component during heating of fine-grained metals and powders have a significant effect on the parameters of the oxidation process of such materials. The thermally induced effects in the oxygen-containing components might play a critical role for the structure stability during long-term use of such materials under cyclic thermomechanical impacts.

• Periodical: Key Engineering Materials (Volume 887)
• Pages: 275-280
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.887.275
• Online since: May 2021
• Authors: A.V. Korshunov*
• Keywords: Metals, Micron-Sized, Oxidation, Phase Transformations, Submicrocrystalline Structure, Submicron Powders, Thermal Stability

References

[1] Severe plastic deformation techniques, M. Cabibbo (Ed.), IntechOpen, Croatia, 2017. 224 p.

[2] Yu.F. Ivanov, M.N. Osmonoliev, V.S. Sedoi, et al, Productions of ultra-fine powders and their use in high energetic compositions, Propellants, Explos. Pyrotech. 28 (2003) 319–333.

DOI: 10.1002/prep.200300019

[3] C. Poole, F. Owens, Introduction to nanotechnology, Wiley-Interscience, NJ, 2003, 400 p.

[4] P. V. Bozhko, A. V. Korshunov, A. P. Il'In, et al, Reactivity of submicrocrystalline titanium: II. Electrochemical properties and corrosion stability in sulfuric acid solutions, Inorg. Mater. Appl. Res. 4 (2013) 85–91.

DOI: 10.1134/s2075113313020032

[5] Yu. P. Sharkeev, A. Yu. Eroshenko, V. I. Danilov, et al, Microstructure and mechanical properties of nanostructured and ultrafine-grained titanium and the zirconium formed by the method of severe plastic deformation, Russ. Phys. J. 56 (2014) 1156–1162.

DOI: 10.1007/s11182-014-0156-3

[6] J. L. Murray, H. A. Wriedt, The O–Ti (oxygen-titanium) system, Bulletin of Alloy Phase Diagrams 8 (1987) 148–165.

[7] J. A. Hedvall, On the reactivity of solid phases, J. Phys. Chem. 28 (1924) 1316–1330.

[8] P. Kofstad, High-temperature oxidation of titanium, J. Less-Common Metals 12 (1967) 449–464.

DOI: 10.1016/0022-5088(67)90017-3

[9] R.J. Contieri, M. Zanotello, R. Caram, Recrystallization and grain growth in highly cold worked CP-Titanium, Mater. Sci. Eng. A 527 (2010) 3994–4000.

DOI: 10.1016/j.msea.2010.03.023

[10] T. Kubina, J. Dlouhý, M. Köver, M. Dománková, J. Hodek, Preparation and thermal stability of ultra-fine and nano-grained commercially pure titanium wires using conform equipment, Mater. Technol. 49 (2015) 213–217.

DOI: 10.17222/mit.2013.226

[11] H. Zhang, J. F. Banfield, Kinetics of crystallization and crystal growth of nanocrystalline anatase in nanometer-sized amorphous titania, Chem. Mater. 1 (2002) 4145-4154.

DOI: 10.1021/cm020072k

[12] N. Wetchakun, B. Incessungvorn, K. Wetchakun, S. Phanichphant, Influence of calcination temperature on anatase to rutile phase transformation in TiO2 nanoparticles synthesized by the modified sol-gel method, Mater. Lett. 82 (2012) 195–198.

DOI: 10.1016/j.matlet.2012.05.092

[13] D. Hanaor, C. Sorrell, Review of the anatase to rutile phase transformation, J. Mater. Sci. 46 (2011) 855–874.

DOI: 10.1007/s10853-010-5113-0

[14] E. Gemelli, N. Camargo, Oxidation kinetics of commercially pure titanium, Revista Matéria 12 (2007) 525–531.

DOI: 10.1590/s1517-70762007000300014

[15] A. V. Korshunov, A. P. Ilyin, Oxidation of copper nanopowders on heating in air, Russ. J. Appl. Chem. 82 (2009) 1164–1171.

DOI: 10.1134/s1070427209070039

[16] O. Kubaschewski, B. E. Hopkins, Oxidation of metals and alloys, 2nd ed., Butterworths, 1962, 319 p.

[17] E. A. Gulbransen, K. F. Andrew, F. A. Brassart, Oxidation of molybdenum 550° to 1700 °C, J. Electrochem. Soc. 110 (1963) 952–959.

DOI: 10.1149/1.2425918

[18] T. Sun, L. Xu, S. Wei, et al, Phase evolution of hydrothermal synthesis oxide-doped molybdenum powders, Int. J. Refract. Hard Met. 86 (2020) 1050853 (1–12).