Creation of a hard microrelief on a titanium surface processed by microplasma discharges with a current amplitude of 200 A and pulse duration of 20 ms

Autor:	V. A. Ivanov, I. A. Khrennikova, A. S. Sakharov, M. S. Alekseeva, V. G. Lapteva, T. I. Kamolova, A. A. Letunov, L. I. Kuksenova, M. E. Konyzhev, S. N. Satunin, A. A. Dorofeyuk
Rok vydání:	2012
Předmět:	Materials science Physics and Astronomy (miscellaneous) Microplasma Orders of magnitude (temperature) chemistry.chemical_element Pulse duration Plasma Condensed Matter Physics Indentation hardness Amplitude chemistry Surface layer Composite material Titanium
Zdroj:	Plasma Physics Reports. 38:1105-1112
ISSN:	1562-6938 1063-780X
DOI:	10.1134/s1063780x12080144
Popis:	The interaction of microplasma discharges with samples made of VT1 commercial titanium was studied experimentally. The amplitude of the current pulses of microplasma discharges was 200 A, the pulse duration was 20 ms, and the number of current pulses was from 1 to 10. After microplasma processing, a 10-μm-thick solid remelted surface layer with an increased hardness formed on the titanium samples. As compared to the initial state of titanium samples, the surface layer hardened by microplasma discharges possesses improved parameters: the microhardness increases fivefold, the maximum admissible pressure applied to the samples during friction increases more than 20-fold, the friction wear rate is reduced by three orders of magnitude, and the friction coefficient decreases sixfold.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ddb79edf271c9d9a15eb47379ee7861d https://doi.org/10.1134/s1063780x12080144 Zobrazit plný text záznamu Plný text ve formátu PDF