Microstructure of severely deformed metals from X-ray line profile analysis

J. Gubicza, N. H. Nam, K. Máthis, V. V. Stolyarov

Research output: Contribution to journalArticle

Abstract

Two essentially different materials, cubic Ti49.8Ni 50.2 shape memory alloy and hexagonal AZ91 Mg alloy, were deformed by equal channel angular pressing (ECAP). The microstructure developed as a result of severe plastic deformation was studied by X-ray line profile analysis. The correlation between the microstructure and the mechanical behavior was also investigated. Below 100°C the tensile strength of the Mg alloy increased as a consequence of the increase of the dislocation density owing to ECAP. Above 200°C the strength decreased and the ductility increased as a result of the breakage of the Al12Mg17 precipitates due to ECAP. The analysis of the dislocation contrast factors of Ti49.8Ni 50.2 revealed that 〈100〉{110} dislocations with 〈111〉 line vector formed during ECAP.

Original languageEnglish
Pages (from-to)93-98
Number of pages6
JournalZeitschrift fur Kristallographie, Supplement
Volume1
Issue number23
Publication statusPublished - 2006

Fingerprint

Equal channel angular pressing
pressing
Metals
X rays
microstructure
Microstructure
profiles
metals
x rays
shape memory alloys
ductility
Shape memory effect
tensile strength
plastic deformation
Ductility
Precipitates
precipitates
Plastic deformation
Tensile strength

Keywords

  • Crystallite size
  • Dislocation structure
  • Line profile analysis
  • Severely deformed metals

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Science(all)

Cite this

Microstructure of severely deformed metals from X-ray line profile analysis. / Gubicza, J.; Nam, N. H.; Máthis, K.; Stolyarov, V. V.

In: Zeitschrift fur Kristallographie, Supplement, Vol. 1, No. 23, 2006, p. 93-98.

Research output: Contribution to journalArticle

Gubicza, J. ; Nam, N. H. ; Máthis, K. ; Stolyarov, V. V. / Microstructure of severely deformed metals from X-ray line profile analysis. In: Zeitschrift fur Kristallographie, Supplement. 2006 ; Vol. 1, No. 23. pp. 93-98.
@article{94cdd25ad17c4d529b9e02383bedd982,
title = "Microstructure of severely deformed metals from X-ray line profile analysis",
abstract = "Two essentially different materials, cubic Ti49.8Ni 50.2 shape memory alloy and hexagonal AZ91 Mg alloy, were deformed by equal channel angular pressing (ECAP). The microstructure developed as a result of severe plastic deformation was studied by X-ray line profile analysis. The correlation between the microstructure and the mechanical behavior was also investigated. Below 100°C the tensile strength of the Mg alloy increased as a consequence of the increase of the dislocation density owing to ECAP. Above 200°C the strength decreased and the ductility increased as a result of the breakage of the Al12Mg17 precipitates due to ECAP. The analysis of the dislocation contrast factors of Ti49.8Ni 50.2 revealed that 〈100〉{110} dislocations with 〈111〉 line vector formed during ECAP.",
keywords = "Crystallite size, Dislocation structure, Line profile analysis, Severely deformed metals",
author = "J. Gubicza and Nam, {N. H.} and K. M{\'a}this and Stolyarov, {V. V.}",
year = "2006",
language = "English",
volume = "1",
pages = "93--98",
journal = "Zeitschrift fur Kristallographie, Supplement",
issn = "0930-486X",
publisher = "R. Oldenbourg",
number = "23",

}

TY - JOUR

T1 - Microstructure of severely deformed metals from X-ray line profile analysis

AU - Gubicza, J.

AU - Nam, N. H.

AU - Máthis, K.

AU - Stolyarov, V. V.

PY - 2006

Y1 - 2006

N2 - Two essentially different materials, cubic Ti49.8Ni 50.2 shape memory alloy and hexagonal AZ91 Mg alloy, were deformed by equal channel angular pressing (ECAP). The microstructure developed as a result of severe plastic deformation was studied by X-ray line profile analysis. The correlation between the microstructure and the mechanical behavior was also investigated. Below 100°C the tensile strength of the Mg alloy increased as a consequence of the increase of the dislocation density owing to ECAP. Above 200°C the strength decreased and the ductility increased as a result of the breakage of the Al12Mg17 precipitates due to ECAP. The analysis of the dislocation contrast factors of Ti49.8Ni 50.2 revealed that 〈100〉{110} dislocations with 〈111〉 line vector formed during ECAP.

AB - Two essentially different materials, cubic Ti49.8Ni 50.2 shape memory alloy and hexagonal AZ91 Mg alloy, were deformed by equal channel angular pressing (ECAP). The microstructure developed as a result of severe plastic deformation was studied by X-ray line profile analysis. The correlation between the microstructure and the mechanical behavior was also investigated. Below 100°C the tensile strength of the Mg alloy increased as a consequence of the increase of the dislocation density owing to ECAP. Above 200°C the strength decreased and the ductility increased as a result of the breakage of the Al12Mg17 precipitates due to ECAP. The analysis of the dislocation contrast factors of Ti49.8Ni 50.2 revealed that 〈100〉{110} dislocations with 〈111〉 line vector formed during ECAP.

KW - Crystallite size

KW - Dislocation structure

KW - Line profile analysis

KW - Severely deformed metals

UR - http://www.scopus.com/inward/record.url?scp=33846461324&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846461324&partnerID=8YFLogxK

M3 - Article

VL - 1

SP - 93

EP - 98

JO - Zeitschrift fur Kristallographie, Supplement

JF - Zeitschrift fur Kristallographie, Supplement

SN - 0930-486X

IS - 23

ER -