Formation of a defect structure in a near surface α-Fe layer after high power ion beam exposure

A. D. Pogrebnyak, Yu P. Sharkeev, N. A. Makhmudov, G. V. Pushkareva, Sh A. Tukhtaev

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Results on the defect structure in α-Fe after high power ion beam exposure (HPIB) are presented. Using the positron annihilations technique, electron microscopy, microhardness measurements, and secondary ion mass spectrometry (SIMS), the formation of a dislocation structure, vacancy clusters (di-and trivacancies), and vacancy loops are revealed in the near surface layer. A correlation between the growing dislocation density and microhardness, on the one hand, and the increasing current density, on the other hand, can be observed. An element analysis performed using the SIMS technique did not show carbide, nitride, and oxide formation on the α-Fe surface. Increased surface and bulk microhardness are related to the formation of the total spectrum of defects in a modified layer. Results obtained using HPIB from a α-Fe surface are compared to results on single-axis-deformed α-Fe.

Original languageEnglish
Pages (from-to)119-130
Number of pages12
JournalPhysica Status Solidi (A) Applied Research
Volume123
Issue number1
Publication statusPublished - Jan 1991

Fingerprint

Defect structures
microhardness
Ion beams
surface layers
ion beams
Microhardness
secondary ion mass spectrometry
defects
Secondary ion mass spectrometry
Vacancies
positron annihilation
carbides
nitrides
Positron annihilation
electron microscopy
Dislocations (crystals)
Nitrides
Oxides
Electron microscopy
current density

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Formation of a defect structure in a near surface α-Fe layer after high power ion beam exposure. / Pogrebnyak, A. D.; Sharkeev, Yu P.; Makhmudov, N. A.; Pushkareva, G. V.; Tukhtaev, Sh A.

In: Physica Status Solidi (A) Applied Research, Vol. 123, No. 1, 01.1991, p. 119-130.

Research output: Contribution to journalArticle

Pogrebnyak, AD, Sharkeev, YP, Makhmudov, NA, Pushkareva, GV & Tukhtaev, SA 1991, 'Formation of a defect structure in a near surface α-Fe layer after high power ion beam exposure', Physica Status Solidi (A) Applied Research, vol. 123, no. 1, pp. 119-130.
Pogrebnyak, A. D. ; Sharkeev, Yu P. ; Makhmudov, N. A. ; Pushkareva, G. V. ; Tukhtaev, Sh A. / Formation of a defect structure in a near surface α-Fe layer after high power ion beam exposure. In: Physica Status Solidi (A) Applied Research. 1991 ; Vol. 123, No. 1. pp. 119-130.
@article{b5080cae070f4b8ba67bab56f3007062,
title = "Formation of a defect structure in a near surface α-Fe layer after high power ion beam exposure",
abstract = "Results on the defect structure in α-Fe after high power ion beam exposure (HPIB) are presented. Using the positron annihilations technique, electron microscopy, microhardness measurements, and secondary ion mass spectrometry (SIMS), the formation of a dislocation structure, vacancy clusters (di-and trivacancies), and vacancy loops are revealed in the near surface layer. A correlation between the growing dislocation density and microhardness, on the one hand, and the increasing current density, on the other hand, can be observed. An element analysis performed using the SIMS technique did not show carbide, nitride, and oxide formation on the α-Fe surface. Increased surface and bulk microhardness are related to the formation of the total spectrum of defects in a modified layer. Results obtained using HPIB from a α-Fe surface are compared to results on single-axis-deformed α-Fe.",
author = "Pogrebnyak, {A. D.} and Sharkeev, {Yu P.} and Makhmudov, {N. A.} and Pushkareva, {G. V.} and Tukhtaev, {Sh A.}",
year = "1991",
month = "1",
language = "English",
volume = "123",
pages = "119--130",
journal = "Physica Status Solidi (A) Applied Research",
issn = "0031-8965",
publisher = "Wiley-VCH Verlag",
number = "1",

}

TY - JOUR

T1 - Formation of a defect structure in a near surface α-Fe layer after high power ion beam exposure

AU - Pogrebnyak, A. D.

AU - Sharkeev, Yu P.

AU - Makhmudov, N. A.

AU - Pushkareva, G. V.

AU - Tukhtaev, Sh A.

PY - 1991/1

Y1 - 1991/1

N2 - Results on the defect structure in α-Fe after high power ion beam exposure (HPIB) are presented. Using the positron annihilations technique, electron microscopy, microhardness measurements, and secondary ion mass spectrometry (SIMS), the formation of a dislocation structure, vacancy clusters (di-and trivacancies), and vacancy loops are revealed in the near surface layer. A correlation between the growing dislocation density and microhardness, on the one hand, and the increasing current density, on the other hand, can be observed. An element analysis performed using the SIMS technique did not show carbide, nitride, and oxide formation on the α-Fe surface. Increased surface and bulk microhardness are related to the formation of the total spectrum of defects in a modified layer. Results obtained using HPIB from a α-Fe surface are compared to results on single-axis-deformed α-Fe.

AB - Results on the defect structure in α-Fe after high power ion beam exposure (HPIB) are presented. Using the positron annihilations technique, electron microscopy, microhardness measurements, and secondary ion mass spectrometry (SIMS), the formation of a dislocation structure, vacancy clusters (di-and trivacancies), and vacancy loops are revealed in the near surface layer. A correlation between the growing dislocation density and microhardness, on the one hand, and the increasing current density, on the other hand, can be observed. An element analysis performed using the SIMS technique did not show carbide, nitride, and oxide formation on the α-Fe surface. Increased surface and bulk microhardness are related to the formation of the total spectrum of defects in a modified layer. Results obtained using HPIB from a α-Fe surface are compared to results on single-axis-deformed α-Fe.

UR - http://www.scopus.com/inward/record.url?scp=0025840025&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025840025&partnerID=8YFLogxK

M3 - Article

VL - 123

SP - 119

EP - 130

JO - Physica Status Solidi (A) Applied Research

JF - Physica Status Solidi (A) Applied Research

SN - 0031-8965

IS - 1

ER -