Application of equal-channel angular pressing for producing superplastic aluminum alloys

P. B. Berbon, M. Furukawa, Zenji Horita, M. Nemoto, N. K. Tsenev, R. Z. Valiev, T. G. Langdon

Research output: Contribution to conferencePaper

Abstract

The equal-channel angular (ECA) pressing technique was used to process two different Al alloys. Different routes were performed to observe the effect of the ECA procedure parameters. Observations by transmission electron microscopy (TEM) showed that a fine-grained structure was introduced in all processed alloys when there was a sufficient amount of strain. Mechanical tests performed at low temperatures and relatively fast strain rates demonstrated that very large ductility may be achieved. This paper describes results obtained on Al-5%Zn and Al-5.5%Mg-2.2%Li-0.12%Zr alloys. The first material showed the appearance of subgrains after a small strain was introduced, followed by an evolution of the structure into an array of high angle grain boundaries. The second material showed the effect of the strain introduced in this complex alloy. In the most successful case, an elongation of more than 1180% was obtained in the Al-Mg-Li-Zr alloy.

Original languageEnglish
Pages173-180
Number of pages8
Publication statusPublished - Jan 1 1998
EventProceedings of the 1998 TMS Annual Meeting - San Antonio, TX, USA
Duration: Feb 15 1998Feb 19 1998

Other

OtherProceedings of the 1998 TMS Annual Meeting
CitySan Antonio, TX, USA
Period2/15/982/19/98

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Fingerprint Dive into the research topics of 'Application of equal-channel angular pressing for producing superplastic aluminum alloys'. Together they form a unique fingerprint.

  • Cite this

    Berbon, P. B., Furukawa, M., Horita, Z., Nemoto, M., Tsenev, N. K., Valiev, R. Z., & Langdon, T. G. (1998). Application of equal-channel angular pressing for producing superplastic aluminum alloys. 173-180. Paper presented at Proceedings of the 1998 TMS Annual Meeting, San Antonio, TX, USA, .