Multicycle surface alloying of aluminum with titanium: Structure and properties

Yurii Ivanov, Nikolai Koval, Olga Krysina, Pavel Moskvin, Elizaveta Petrikova, Oleg Tolkachev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Commercially pure A7 aluminum was surface alloyed with commercially pure titanium on COMPLEX equipment under unified vacuum conditions through vacuum arc evaporation and deposition of a thin Ti film and intense electron beam irradiation of the film-substrate system using a plasma-cathode pulsed electron source. The number of deposition-irradiation cycles was 20. The Ti film thickness in each cycle was 0.5 µm. After multicycle alloying, a modified surface layer of up to 60 µm thick was formed representing a multiphase structure of rapidly solidified submicro- and nanograins. The microhardness of the Ti-Al surface alloy (irradiation at 15 J/cm2, 50 µs, 10 pulses) was more than 8 times the microhardness of A7 aluminum, and its wear resistance and friction coefficient were respectively 45 times higher and 1.2 times lower than the values in the initial material. The chief cause for the improved mechanical and tribological properties of commercially pure A7 aluminum is the formation of an extended intermetallic layer.

Original languageEnglish
Title of host publicationRadiation-Thermal Effects and Processes in Inorganic Materials
EditorsSergey Gyngazov
PublisherTrans Tech Publications Ltd
Pages131-136
Number of pages6
ISBN (Print)9783035714500
DOIs
Publication statusPublished - 1 Jan 2018
Event13th International Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2017 - Tomsk, Russian Federation
Duration: 9 Oct 201714 Oct 2017

Publication series

NameKey Engineering Materials
Volume781 KEM
ISSN (Print)1013-9826

Conference

Conference13th International Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2017
CountryRussian Federation
CityTomsk
Period9.10.1714.10.17

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Keywords

  • Commercially pure aluminum
  • Commercially pure titanium
  • Low-energy high-current electron beams
  • Multicycle film deposition
  • Properties
  • Structure

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Ivanov, Y., Koval, N., Krysina, O., Moskvin, P., Petrikova, E., & Tolkachev, O. (2018). Multicycle surface alloying of aluminum with titanium: Structure and properties. In S. Gyngazov (Ed.), Radiation-Thermal Effects and Processes in Inorganic Materials (pp. 131-136). (Key Engineering Materials; Vol. 781 KEM). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.781.131