| Autor: |
Meisner, Stanislav, Meisner, Ludmila, Rotshtein, Vladimir, Ozur, Grigory, Yakovlev, Evgeny, Semin, Victor, D'yachenko, Filipp |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2017, Vol. 1909 Issue 1, p1-4, 4p, 3 Graphs |
| Abstrakt: |
The paper presents research data on the physicomechanical surface properties of NiTi alloy after microsecond low-energy high-current electron beam treatment and subsequent magnetron TiTa coating deposition. Nanoindentation shows that after electron beam treatment, the material at a depth of <0.2 μm have the following surface characteristics: Vickers microhardness Hμ = 5000 MPa, plasticity characteristic δH ≈ 0, and depth recovery ratio η = 60%. At a depth of >2 μm, these properties correspond to their initial values. After subsequent deposition of a TiTa coating 1 μm thick, the material reveals changes in its bulk physicomechanical properties. The dependences of Hµ, δH, and η on the indentation depth h feature three quasilinear portions with constant slopes of Hµ, δH, and η which correlate with the multilayer structure formed in the material during electron beam treatment and coating deposition. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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