Thermal stability of ultrafine-grained aluminum in the presence of Mg and Zr additions

Hideaki Hasegawa, Shogo Komura, Atsushi Utsunomiya, Zenji Horita, Minoru Furukawa, Minoru Nemoto, Terence G. Langdon

Research output: Contribution to journalArticle

174 Citations (Scopus)

Abstract

Superplastic deformation occurs at high temperatures and requires the presence of a very small grain size. Experiments demonstrate that equal-channel angular (ECA) pressing is capable of introducing ultrafine grain sizes in pure Al, Al-Mg and Al-Zr alloys, with grain sizes lying in the sub-micrometer range for the alloys. It is shown by static annealing that these ultrafine grain sizes are not stable in pure Al and the Al-Mg alloys at elevated temperatures but in the Al-Zr alloys the grains remain small up to temperatures of ≈600 K.

Original languageEnglish
Pages (from-to)188-196
Number of pages9
JournalMaterials Science and Engineering A
Volume265
Issue number1-2
Publication statusPublished - Jun 15 1999

Fingerprint

Aluminum
Thermodynamic stability
thermal stability
grain size
aluminum
Superplastic deformation
Equal channel angular pressing
pressing
Temperature
micrometers
Annealing
annealing
temperature
Ultrafine
Experiments

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Hasegawa, H., Komura, S., Utsunomiya, A., Horita, Z., Furukawa, M., Nemoto, M., & Langdon, T. G. (1999). Thermal stability of ultrafine-grained aluminum in the presence of Mg and Zr additions. Materials Science and Engineering A, 265(1-2), 188-196.

Thermal stability of ultrafine-grained aluminum in the presence of Mg and Zr additions. / Hasegawa, Hideaki; Komura, Shogo; Utsunomiya, Atsushi; Horita, Zenji; Furukawa, Minoru; Nemoto, Minoru; Langdon, Terence G.

In: Materials Science and Engineering A, Vol. 265, No. 1-2, 15.06.1999, p. 188-196.

Research output: Contribution to journalArticle

Hasegawa, H, Komura, S, Utsunomiya, A, Horita, Z, Furukawa, M, Nemoto, M & Langdon, TG 1999, 'Thermal stability of ultrafine-grained aluminum in the presence of Mg and Zr additions', Materials Science and Engineering A, vol. 265, no. 1-2, pp. 188-196.
Hasegawa H, Komura S, Utsunomiya A, Horita Z, Furukawa M, Nemoto M et al. Thermal stability of ultrafine-grained aluminum in the presence of Mg and Zr additions. Materials Science and Engineering A. 1999 Jun 15;265(1-2):188-196.
Hasegawa, Hideaki ; Komura, Shogo ; Utsunomiya, Atsushi ; Horita, Zenji ; Furukawa, Minoru ; Nemoto, Minoru ; Langdon, Terence G. / Thermal stability of ultrafine-grained aluminum in the presence of Mg and Zr additions. In: Materials Science and Engineering A. 1999 ; Vol. 265, No. 1-2. pp. 188-196.
@article{5f30914b144a42e486e29b6fc74ae03e,
title = "Thermal stability of ultrafine-grained aluminum in the presence of Mg and Zr additions",
abstract = "Superplastic deformation occurs at high temperatures and requires the presence of a very small grain size. Experiments demonstrate that equal-channel angular (ECA) pressing is capable of introducing ultrafine grain sizes in pure Al, Al-Mg and Al-Zr alloys, with grain sizes lying in the sub-micrometer range for the alloys. It is shown by static annealing that these ultrafine grain sizes are not stable in pure Al and the Al-Mg alloys at elevated temperatures but in the Al-Zr alloys the grains remain small up to temperatures of ≈600 K.",
author = "Hideaki Hasegawa and Shogo Komura and Atsushi Utsunomiya and Zenji Horita and Minoru Furukawa and Minoru Nemoto and Langdon, {Terence G.}",
year = "1999",
month = "6",
day = "15",
language = "English",
volume = "265",
pages = "188--196",
journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",
issn = "0921-5093",
publisher = "Elsevier BV",
number = "1-2",

}

TY - JOUR

T1 - Thermal stability of ultrafine-grained aluminum in the presence of Mg and Zr additions

AU - Hasegawa, Hideaki

AU - Komura, Shogo

AU - Utsunomiya, Atsushi

AU - Horita, Zenji

AU - Furukawa, Minoru

AU - Nemoto, Minoru

AU - Langdon, Terence G.

PY - 1999/6/15

Y1 - 1999/6/15

N2 - Superplastic deformation occurs at high temperatures and requires the presence of a very small grain size. Experiments demonstrate that equal-channel angular (ECA) pressing is capable of introducing ultrafine grain sizes in pure Al, Al-Mg and Al-Zr alloys, with grain sizes lying in the sub-micrometer range for the alloys. It is shown by static annealing that these ultrafine grain sizes are not stable in pure Al and the Al-Mg alloys at elevated temperatures but in the Al-Zr alloys the grains remain small up to temperatures of ≈600 K.

AB - Superplastic deformation occurs at high temperatures and requires the presence of a very small grain size. Experiments demonstrate that equal-channel angular (ECA) pressing is capable of introducing ultrafine grain sizes in pure Al, Al-Mg and Al-Zr alloys, with grain sizes lying in the sub-micrometer range for the alloys. It is shown by static annealing that these ultrafine grain sizes are not stable in pure Al and the Al-Mg alloys at elevated temperatures but in the Al-Zr alloys the grains remain small up to temperatures of ≈600 K.

UR - http://www.scopus.com/inward/record.url?scp=0000111421&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000111421&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0000111421

VL - 265

SP - 188

EP - 196

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

SN - 0921-5093

IS - 1-2

ER -