Effect of pulsed electron beam irradiation on the grain boundary heterodiffusion in ultrafine-grained molybdenum

G. P. Grabovetskaya, E. N. Stepanova, I. P. Mishin, A. G. Knyazeva, A. D. Teresov

Research output: Contribution to journalConference article

Abstract

Profiles of depth distribution of nickel concentration in the ultrafine-grained molybdenum after isothermal homogenizing annealing and surface irradiation by a pulsed electron beam in a non-melt regime were determined by Auger spectroscopy methods. It was established that the mutual penetration of molybdenum and nickel atoms is activated in the surface layer as a result of electron beam irradiation, and the diffusion regime in the grain boundaries is changed in comparison with that observed under the homogenizing annealing. Indicated changes are shown to be associated with an increase in the dislocation density in the surface layer and the appearance of additional internal stresses caused by the electron beam exposure.

Original languageEnglish
Article number032028
JournalJournal of Physics: Conference Series
Volume1115
Issue number3
DOIs
Publication statusPublished - 27 Nov 2018
Event6th International Congress on Energy Fluxes and Radiation Effects 2018, EFRE 2018 - Tomsk, Russian Federation
Duration: 16 Sep 201822 Sep 2018

Fingerprint

molybdenum
grain boundaries
electron beams
homogenizing
irradiation
surface layers
nickel
annealing
Auger spectroscopy
residual stress
penetration
profiles
atoms

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Effect of pulsed electron beam irradiation on the grain boundary heterodiffusion in ultrafine-grained molybdenum. / Grabovetskaya, G. P.; Stepanova, E. N.; Mishin, I. P.; Knyazeva, A. G.; Teresov, A. D.

In: Journal of Physics: Conference Series, Vol. 1115, No. 3, 032028, 27.11.2018.

Research output: Contribution to journalConference article

@article{22f9af1634c44b63b5502998ee06be03,
title = "Effect of pulsed electron beam irradiation on the grain boundary heterodiffusion in ultrafine-grained molybdenum",
abstract = "Profiles of depth distribution of nickel concentration in the ultrafine-grained molybdenum after isothermal homogenizing annealing and surface irradiation by a pulsed electron beam in a non-melt regime were determined by Auger spectroscopy methods. It was established that the mutual penetration of molybdenum and nickel atoms is activated in the surface layer as a result of electron beam irradiation, and the diffusion regime in the grain boundaries is changed in comparison with that observed under the homogenizing annealing. Indicated changes are shown to be associated with an increase in the dislocation density in the surface layer and the appearance of additional internal stresses caused by the electron beam exposure.",
author = "Grabovetskaya, {G. P.} and Stepanova, {E. N.} and Mishin, {I. P.} and Knyazeva, {A. G.} and Teresov, {A. D.}",
year = "2018",
month = "11",
day = "27",
doi = "10.1088/1742-6596/1115/3/032028",
language = "English",
volume = "1115",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "3",

}

TY - JOUR

T1 - Effect of pulsed electron beam irradiation on the grain boundary heterodiffusion in ultrafine-grained molybdenum

AU - Grabovetskaya, G. P.

AU - Stepanova, E. N.

AU - Mishin, I. P.

AU - Knyazeva, A. G.

AU - Teresov, A. D.

PY - 2018/11/27

Y1 - 2018/11/27

N2 - Profiles of depth distribution of nickel concentration in the ultrafine-grained molybdenum after isothermal homogenizing annealing and surface irradiation by a pulsed electron beam in a non-melt regime were determined by Auger spectroscopy methods. It was established that the mutual penetration of molybdenum and nickel atoms is activated in the surface layer as a result of electron beam irradiation, and the diffusion regime in the grain boundaries is changed in comparison with that observed under the homogenizing annealing. Indicated changes are shown to be associated with an increase in the dislocation density in the surface layer and the appearance of additional internal stresses caused by the electron beam exposure.

AB - Profiles of depth distribution of nickel concentration in the ultrafine-grained molybdenum after isothermal homogenizing annealing and surface irradiation by a pulsed electron beam in a non-melt regime were determined by Auger spectroscopy methods. It was established that the mutual penetration of molybdenum and nickel atoms is activated in the surface layer as a result of electron beam irradiation, and the diffusion regime in the grain boundaries is changed in comparison with that observed under the homogenizing annealing. Indicated changes are shown to be associated with an increase in the dislocation density in the surface layer and the appearance of additional internal stresses caused by the electron beam exposure.

UR - http://www.scopus.com/inward/record.url?scp=85058240452&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85058240452&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1115/3/032028

DO - 10.1088/1742-6596/1115/3/032028

M3 - Conference article

VL - 1115

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 3

M1 - 032028

ER -