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Kohli K, Bhattacharya SK, Ueda K, Narushima T, Sahara R, Ghosh P. Electronegativity Difference as a Descriptor for the Oxidation-Inhibiting Effect of the Alloying Element during the Early Stages of Titanium Oxidation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:1448-1457. [PMID: 35040642 DOI: 10.1021/acs.langmuir.1c02633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Degradation of the mechanical properties of α-titanium, which is used to manufacture parts of jet engines, due to high-temperature oxidation is detrimental for the engine components. Therefore, to overcome this problem there are ongoing endeavors to develop novel oxidation-resistant titanium alloys and improve the properties of the existing ones. In an effort to understand the effect of alloying on oxidation of the α-Ti(0001) surface and to identify descriptors for rational design of oxidation-resistant alloys, in this work, using density functional theory-based calculations, we studied oxygen sorption and surface to subsurface diffusion on pure and alloyed α-Ti(0001) surfaces. Zr, Hf, Nb, and Mo from the d block and Al, Ga, Si, and Ge from the p block were used as alloying elements. We find that the alloying elements prefer to segregate on the surface compared to the subsurface layers. Our calculations show that the diffusion barrier correlates with the difference in the electronegativity between the alloying element and Ti. Elements which are more electropositive than Ti are found to hinder the oxygen dissolution in Ti and vice versa. We propose that the electronegativity difference can act as a good descriptor for choosing alloying elements. Our results are in reasonably good agreement with experimental reports on the growth of oxide layers on these alloyed Ti surfaces.
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Affiliation(s)
- Kanika Kohli
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Somesh Kr Bhattacharya
- Research Center for Structural Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Kyosuke Ueda
- Department of Materials Processing, Tohoku University, 6-6-2 Aza Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Takayuki Narushima
- Research Center for Structural Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- Department of Materials Processing, Tohoku University, 6-6-2 Aza Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Ryoji Sahara
- Research Center for Structural Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- Department of Materials Processing, Tohoku University, 6-6-2 Aza Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Prasenjit Ghosh
- Department of Physics, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
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Mirzoev AA, Verkhovykh AV, Okishev KY, Mirzaev DA. Hydrogen interaction with ferrite/cementite interface: ab initio calculations and thermodynamics. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1406161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- A. A. Mirzoev
- Department of Computer Modeling and Nanotechnology, South Ural State University, Chelyabinsk, Russian Federation
| | - A. V. Verkhovykh
- Department of Computer Modeling and Nanotechnology, South Ural State University, Chelyabinsk, Russian Federation
| | - K. Yu. Okishev
- Department of Materials Science and Physics and Chemistry of Materials, South Ural State University, Chelyabinsk, Russian Federation
| | - D. A. Mirzaev
- Department of Materials Science and Physics and Chemistry of Materials, South Ural State University, Chelyabinsk, Russian Federation
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Mirzaev D, Mirzoev A, Okishev K, Verkhovykh A. Ab initiomodelling of the interaction of H interstitials with grain boundaries in bcc Fe. Mol Phys 2016. [DOI: 10.1080/00268976.2015.1136439] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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