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. 2020 Jul 8;13(14):3048. doi: 10.3390/ma13143048

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Scratch behavior of titanium after annealing at: (a) 600 °C for 24 h, (b) 600 °C for 72 h, (c) 700 °C for 24 h, (d) 700 °C for 72 h, (e) 800 °C for 2 h, (f) 800 °C for 6 h (F_n—indenter load, F_t—resistance to indenter penetration, P_d—depth of indenter penetration under load, R_d—depth of indenter penetration after unloading).

Scratch behavior of titanium after annealing at: (a) 600 °C for 24 h, (b) 600 °C for 72 h, (c) 700 °C for 24 h, (d) 700 °C for 72 h, (e) 800 °C for 2 h, (f) 800 °C for 6 h (F_n—indenter load, F_t—resistance to indenter penetration, P_d—depth of indenter penetration under load, R_d—depth of indenter penetration after unloading).