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Title: Grain size effect on yield strength of titanium alloy implanted with aluminum ions

The paper presents a transmission electron microscopy (TEM) study of the microstructure and phase state of commercially pure titanium VT1-0 implanted by aluminum ions. This study has been carried out before and after the ion implantation for different grain size, i.e. 0.3 µm (ultra-fine grain condition), 1.5 µm (fine grain condition), and 17 µm (polycrystalline condition). This paper presents details of calculations and analysis of strength components of the yield stress. It is shown that the ion implantation results in a considerable hardening of the entire thickness of the implanted layer in the both grain types. The grain size has, however, a different effect on the yield stress. So, both before and after the ion implantation, the increase of the grain size leads to the decrease of the alloy hardening. Thus, hardening in ultra-fine and fine grain alloys increased by four times, while in polycrystalline alloy it increased by over six times.
Authors:
 [1] ;  [2] ;  [1] ;  [2] ;  [1] ;  [3] ;  [4]
  1. Tomsk State University of Architecture and Building, 2, Solyanaya Sq., 634003, Tomsk (Russian Federation)
  2. (Russian Federation)
  3. Institute of Strength Physics and Materials Science, SB RAS, 2/4, Akademicheskii Ave., 634021, Tomsk (Russian Federation)
  4. National Research Tomsk State University, 36, Lenin Str., 634050, Tomsk (Russian Federation)
Publication Date:
OSTI Identifier:
22494443
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1698; Journal Issue: 1; Conference: AMTC-2015: 2. all-Russian scientific conference of young scientists on advanced materials in technology and construction, Tomsk (Russian Federation), 6-9 Oct 2015; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM IONS; GRAIN SIZE; HARDENING; ION IMPLANTATION; POLYCRYSTALS; STRESSES; THICKNESS; TITANIUM; TITANIUM ALLOYS; TRANSMISSION ELECTRON MICROSCOPY; YIELD STRENGTH