Superplasticity of ultrafine-grained Al-3%Mg-0.2%Sc alloy produced by equal-channel angular pressing

Takeshi Fujita, Shogo Komura, Zenji Horita, Terence G. Langdon

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper describes grain refinement of an Al-3%Mg-0.2%Sc alloy using the equal-channel angular pressing (ECAP) technique at room temperature. It is shown that a grain size of 0.2 μm is obtained with this technique. The paper also presents the results of tensile tests for the fine-grained Al-3%Mg-0.2%Sc alloy over a wide range of strain rates. Elongations of more than 1000% are attained at a temperature of 673 K in a high strain rate range of more than 10-2 s-1. Transmission electron microscopy and scanning ion microscopy are employed for microstructural observations before and after tensile testing. The results are compared with those of a cold-rolled Al-3%Mg-0.2%Sc alloy. It is demonstrated that grain refinement using the ECAP technique is useful for the production of Al alloys exhibiting high strain rate superplasticity.

Original languageEnglish
Pages (from-to)376-380
Number of pages5
JournalKeikinzoku/Journal of Japan Institute of Light Metals
Volume50
Issue number8
DOIs
Publication statusPublished - Aug 2000

Fingerprint

Equal channel angular pressing
Superplasticity
Strain rate
Grain refinement
Tensile testing
Elongation
Microscopic examination
Ions
Transmission electron microscopy
Scanning
Temperature
Ultrafine

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Superplasticity of ultrafine-grained Al-3%Mg-0.2%Sc alloy produced by equal-channel angular pressing. / Fujita, Takeshi; Komura, Shogo; Horita, Zenji; Langdon, Terence G.

In: Keikinzoku/Journal of Japan Institute of Light Metals, Vol. 50, No. 8, 08.2000, p. 376-380.

Research output: Contribution to journalArticle

Fujita, Takeshi ; Komura, Shogo ; Horita, Zenji ; Langdon, Terence G. / Superplasticity of ultrafine-grained Al-3%Mg-0.2%Sc alloy produced by equal-channel angular pressing. In: Keikinzoku/Journal of Japan Institute of Light Metals. 2000 ; Vol. 50, No. 8. pp. 376-380.
@article{933347a107ad46bba840a628d6a4f850,
title = "Superplasticity of ultrafine-grained Al-3{\%}Mg-0.2{\%}Sc alloy produced by equal-channel angular pressing",
abstract = "This paper describes grain refinement of an Al-3{\%}Mg-0.2{\%}Sc alloy using the equal-channel angular pressing (ECAP) technique at room temperature. It is shown that a grain size of 0.2 μm is obtained with this technique. The paper also presents the results of tensile tests for the fine-grained Al-3{\%}Mg-0.2{\%}Sc alloy over a wide range of strain rates. Elongations of more than 1000{\%} are attained at a temperature of 673 K in a high strain rate range of more than 10-2 s-1. Transmission electron microscopy and scanning ion microscopy are employed for microstructural observations before and after tensile testing. The results are compared with those of a cold-rolled Al-3{\%}Mg-0.2{\%}Sc alloy. It is demonstrated that grain refinement using the ECAP technique is useful for the production of Al alloys exhibiting high strain rate superplasticity.",
author = "Takeshi Fujita and Shogo Komura and Zenji Horita and Langdon, {Terence G.}",
year = "2000",
month = "8",
doi = "10.2464/jilm.50.376",
language = "English",
volume = "50",
pages = "376--380",
journal = "Keikinzoku/Journal of Japan Institute of Light Metals",
issn = "0451-5994",
publisher = "Keikinzoku Gakkai/Japan Institute of Light Metals",
number = "8",

}

TY - JOUR

T1 - Superplasticity of ultrafine-grained Al-3%Mg-0.2%Sc alloy produced by equal-channel angular pressing

AU - Fujita, Takeshi

AU - Komura, Shogo

AU - Horita, Zenji

AU - Langdon, Terence G.

PY - 2000/8

Y1 - 2000/8

N2 - This paper describes grain refinement of an Al-3%Mg-0.2%Sc alloy using the equal-channel angular pressing (ECAP) technique at room temperature. It is shown that a grain size of 0.2 μm is obtained with this technique. The paper also presents the results of tensile tests for the fine-grained Al-3%Mg-0.2%Sc alloy over a wide range of strain rates. Elongations of more than 1000% are attained at a temperature of 673 K in a high strain rate range of more than 10-2 s-1. Transmission electron microscopy and scanning ion microscopy are employed for microstructural observations before and after tensile testing. The results are compared with those of a cold-rolled Al-3%Mg-0.2%Sc alloy. It is demonstrated that grain refinement using the ECAP technique is useful for the production of Al alloys exhibiting high strain rate superplasticity.

AB - This paper describes grain refinement of an Al-3%Mg-0.2%Sc alloy using the equal-channel angular pressing (ECAP) technique at room temperature. It is shown that a grain size of 0.2 μm is obtained with this technique. The paper also presents the results of tensile tests for the fine-grained Al-3%Mg-0.2%Sc alloy over a wide range of strain rates. Elongations of more than 1000% are attained at a temperature of 673 K in a high strain rate range of more than 10-2 s-1. Transmission electron microscopy and scanning ion microscopy are employed for microstructural observations before and after tensile testing. The results are compared with those of a cold-rolled Al-3%Mg-0.2%Sc alloy. It is demonstrated that grain refinement using the ECAP technique is useful for the production of Al alloys exhibiting high strain rate superplasticity.

UR - http://www.scopus.com/inward/record.url?scp=0034249587&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034249587&partnerID=8YFLogxK

U2 - 10.2464/jilm.50.376

DO - 10.2464/jilm.50.376

M3 - Article

AN - SCOPUS:0034249587

VL - 50

SP - 376

EP - 380

JO - Keikinzoku/Journal of Japan Institute of Light Metals

JF - Keikinzoku/Journal of Japan Institute of Light Metals

SN - 0451-5994

IS - 8

ER -