Application of high-pressure sliding for grain refinement of Al and Mg alloys

Kiyonari Tazoe, Shuji Honda, Zenji Horita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

An earlier study showed that high-pressure sliding (HPS) is effective for grain refinement of pure Al in a rectangular sheet form using the principle of high-pressure torsion. In this study, the HPS is applied for grain refinement of an Al-3%Mg-0.2%Sc alloy and an AZ61 Mg alloy. HPS was conducted under a pressure of 1 GPa with sliding distances of 10 to 30 mm at room temperature for the Al alloy and at 473 K for the Mg alloy The average grain size is ∼300 nm for both the Al and Mg alloys, respectively. Tensile tests showed that a superplastic elongation of ∼1500% is achieved in the Al-3%Mg-0.2%Sc alloy at 573 K with an initial strain rate of 3.3×10-3 s-1 and of ∼600% in the AZ61 alloy at 573 K with an initial strain rate of 1×10-3 s-1.

Original languageEnglish
Title of host publicationNanomaterials by Severe Plastic Deformation, NanoSPD5
Pages91-96
Number of pages6
DOIs
Publication statusPublished - Feb 25 2011
Event5th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD5 - Nanjing, China
Duration: Mar 21 2011Mar 25 2011

Publication series

NameMaterials Science Forum
Volume667-669
ISSN (Print)0255-5476

Other

Other5th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD5
CountryChina
CityNanjing
Period3/21/113/25/11

    Fingerprint

All Science Journal Classification (ASJC) codes

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

Cite this

Tazoe, K., Honda, S., & Horita, Z. (2011). Application of high-pressure sliding for grain refinement of Al and Mg alloys. In Nanomaterials by Severe Plastic Deformation, NanoSPD5 (pp. 91-96). (Materials Science Forum; Vol. 667-669). https://doi.org/10.4028/www.scientific.net/MSF.667-669.91