Effect of High-Power Ion Beams on the Surface Topography and Structure of the Subsurface Layer of Submicrocrystalline Titanium Alloys

M. V. Zhidkov, A. E. Ligachev, Yu R. Kolobov, G. V. Potemkin, G. E. Remnev

Research output: Contribution to journalArticle

Abstract

The influence of high-power beams of carbon ions (the ion energy is 250 keV; the pulse duration is ~100 ns; the current density in the pulse is 150–200 A/cm2; the surface energy density of a single pulse is j ~ 3 J/cm2 under the irradiation of the samples of the VT1-0 titanium alloy and j ~ 1 J/cm2 for the treatment of the samples of the VT6 titanium alloy; and the number of pulses is 1, 5, 10, and 50) on the surface topography and structure-phase state of the subsurface layer of submicrocrystalline titanium alloys VT1-0 and VT6 is studied. The sample surface before irradiation is preliminarily mechanically grinded and polished. It is shown that surface defects are formed on the alloy surface after irradiation. These are craters of various shapes and geometry with diameter from fractions of micrometer to 80–100 μm. Herewith, the grain structure in the subsurface layer becomes more uniform in size and degree of grain equiaxity. A rather homogeneous structure is characteristic of the state of the VT1-0 titanium alloy; the average grain size is ~0.31 μm, while that one the VT6 alloy is ~0.9 μm. The grain growth in the transverse direction to 0.54 μm is observed after one irradiation pulse in the subsurface layer of the VT1-0 alloy (at j ~ 3 J/cm2), while the grain size for the VT6 alloy (j ~ 1 J/cm2) decreases to ~0.54 μm. The average grain size in the subsurface layer after 50 pulses reaches ~2.2 μm for the VT1-0 alloy and ~1.6 μm for the VT6 alloy. It should be noted that a rather homogeneous grain structure with equiaxial grains is formed for both alloys already after the effect of one pulse of the high-power ion beam.

Original languageEnglish
Pages (from-to)590-597
Number of pages8
JournalRussian Journal of Non-Ferrous Metals
Volume60
Issue number5
DOIs
Publication statusPublished - 1 Sep 2019

Fingerprint

Surface topography
Titanium alloys
Surface structure
Ion beams
Irradiation
Crystal microstructure
Ions
Surface defects
Grain growth
Interfacial energy
Current density
Carbon
Geometry

Keywords

  • craters
  • high-power ion beams
  • titanium alloys

ASJC Scopus subject areas

  • Mechanics of Materials
  • Surfaces, Coatings and Films
  • Metals and Alloys

Cite this

Effect of High-Power Ion Beams on the Surface Topography and Structure of the Subsurface Layer of Submicrocrystalline Titanium Alloys. / Zhidkov, M. V.; Ligachev, A. E.; Kolobov, Yu R.; Potemkin, G. V.; Remnev, G. E.

In: Russian Journal of Non-Ferrous Metals, Vol. 60, No. 5, 01.09.2019, p. 590-597.

Research output: Contribution to journalArticle

@article{2b5cf7f669dc4f6fbce76332ac1a3bb5,
title = "Effect of High-Power Ion Beams on the Surface Topography and Structure of the Subsurface Layer of Submicrocrystalline Titanium Alloys",
abstract = "The influence of high-power beams of carbon ions (the ion energy is 250 keV; the pulse duration is ~100 ns; the current density in the pulse is 150–200 A/cm2; the surface energy density of a single pulse is j ~ 3 J/cm2 under the irradiation of the samples of the VT1-0 titanium alloy and j ~ 1 J/cm2 for the treatment of the samples of the VT6 titanium alloy; and the number of pulses is 1, 5, 10, and 50) on the surface topography and structure-phase state of the subsurface layer of submicrocrystalline titanium alloys VT1-0 and VT6 is studied. The sample surface before irradiation is preliminarily mechanically grinded and polished. It is shown that surface defects are formed on the alloy surface after irradiation. These are craters of various shapes and geometry with diameter from fractions of micrometer to 80–100 μm. Herewith, the grain structure in the subsurface layer becomes more uniform in size and degree of grain equiaxity. A rather homogeneous structure is characteristic of the state of the VT1-0 titanium alloy; the average grain size is ~0.31 μm, while that one the VT6 alloy is ~0.9 μm. The grain growth in the transverse direction to 0.54 μm is observed after one irradiation pulse in the subsurface layer of the VT1-0 alloy (at j ~ 3 J/cm2), while the grain size for the VT6 alloy (j ~ 1 J/cm2) decreases to ~0.54 μm. The average grain size in the subsurface layer after 50 pulses reaches ~2.2 μm for the VT1-0 alloy and ~1.6 μm for the VT6 alloy. It should be noted that a rather homogeneous grain structure with equiaxial grains is formed for both alloys already after the effect of one pulse of the high-power ion beam.",
keywords = "craters, high-power ion beams, titanium alloys",
author = "Zhidkov, {M. V.} and Ligachev, {A. E.} and Kolobov, {Yu R.} and Potemkin, {G. V.} and Remnev, {G. E.}",
year = "2019",
month = "9",
day = "1",
doi = "10.3103/S1067821219050195",
language = "English",
volume = "60",
pages = "590--597",
journal = "Russian Journal of Non-Ferrous Metals",
issn = "1067-8212",
publisher = "Springer Science + Business Media",
number = "5",

}

TY - JOUR

T1 - Effect of High-Power Ion Beams on the Surface Topography and Structure of the Subsurface Layer of Submicrocrystalline Titanium Alloys

AU - Zhidkov, M. V.

AU - Ligachev, A. E.

AU - Kolobov, Yu R.

AU - Potemkin, G. V.

AU - Remnev, G. E.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - The influence of high-power beams of carbon ions (the ion energy is 250 keV; the pulse duration is ~100 ns; the current density in the pulse is 150–200 A/cm2; the surface energy density of a single pulse is j ~ 3 J/cm2 under the irradiation of the samples of the VT1-0 titanium alloy and j ~ 1 J/cm2 for the treatment of the samples of the VT6 titanium alloy; and the number of pulses is 1, 5, 10, and 50) on the surface topography and structure-phase state of the subsurface layer of submicrocrystalline titanium alloys VT1-0 and VT6 is studied. The sample surface before irradiation is preliminarily mechanically grinded and polished. It is shown that surface defects are formed on the alloy surface after irradiation. These are craters of various shapes and geometry with diameter from fractions of micrometer to 80–100 μm. Herewith, the grain structure in the subsurface layer becomes more uniform in size and degree of grain equiaxity. A rather homogeneous structure is characteristic of the state of the VT1-0 titanium alloy; the average grain size is ~0.31 μm, while that one the VT6 alloy is ~0.9 μm. The grain growth in the transverse direction to 0.54 μm is observed after one irradiation pulse in the subsurface layer of the VT1-0 alloy (at j ~ 3 J/cm2), while the grain size for the VT6 alloy (j ~ 1 J/cm2) decreases to ~0.54 μm. The average grain size in the subsurface layer after 50 pulses reaches ~2.2 μm for the VT1-0 alloy and ~1.6 μm for the VT6 alloy. It should be noted that a rather homogeneous grain structure with equiaxial grains is formed for both alloys already after the effect of one pulse of the high-power ion beam.

AB - The influence of high-power beams of carbon ions (the ion energy is 250 keV; the pulse duration is ~100 ns; the current density in the pulse is 150–200 A/cm2; the surface energy density of a single pulse is j ~ 3 J/cm2 under the irradiation of the samples of the VT1-0 titanium alloy and j ~ 1 J/cm2 for the treatment of the samples of the VT6 titanium alloy; and the number of pulses is 1, 5, 10, and 50) on the surface topography and structure-phase state of the subsurface layer of submicrocrystalline titanium alloys VT1-0 and VT6 is studied. The sample surface before irradiation is preliminarily mechanically grinded and polished. It is shown that surface defects are formed on the alloy surface after irradiation. These are craters of various shapes and geometry with diameter from fractions of micrometer to 80–100 μm. Herewith, the grain structure in the subsurface layer becomes more uniform in size and degree of grain equiaxity. A rather homogeneous structure is characteristic of the state of the VT1-0 titanium alloy; the average grain size is ~0.31 μm, while that one the VT6 alloy is ~0.9 μm. The grain growth in the transverse direction to 0.54 μm is observed after one irradiation pulse in the subsurface layer of the VT1-0 alloy (at j ~ 3 J/cm2), while the grain size for the VT6 alloy (j ~ 1 J/cm2) decreases to ~0.54 μm. The average grain size in the subsurface layer after 50 pulses reaches ~2.2 μm for the VT1-0 alloy and ~1.6 μm for the VT6 alloy. It should be noted that a rather homogeneous grain structure with equiaxial grains is formed for both alloys already after the effect of one pulse of the high-power ion beam.

KW - craters

KW - high-power ion beams

KW - titanium alloys

UR - http://www.scopus.com/inward/record.url?scp=85073689389&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85073689389&partnerID=8YFLogxK

U2 - 10.3103/S1067821219050195

DO - 10.3103/S1067821219050195

M3 - Article

AN - SCOPUS:85073689389

VL - 60

SP - 590

EP - 597

JO - Russian Journal of Non-Ferrous Metals

JF - Russian Journal of Non-Ferrous Metals

SN - 1067-8212

IS - 5

ER -