Development of Ultrafine Grained Materials using the MAXStrain® Technology

Abstract

Ultrafine-grained structures, having grain size of lμm or less in diameter have shown high rate superplasticity at lower temperatures compared to the conventional superplastic forming conditions. Many techniques have been developed to produce the ultrafine-grained structures primarily by severe plastic deformation, which include equal channel angular pressing (ECAP), 3D forging, high pressure torsion (HPT), and accumulative roll bonding (ARB), etc. A multi-axis-restraint deformation technique (MAXStrain® Technology) was recently developed to obtain ultrafine-grained structures by performing extremely large strains with accurate control of strain, strain rate and temperature. The technology has demonstrated a potential to produce industrial-size ultrafine-grained bulk materials. In this paper, an application of the MAXStrain Technology for developing ultrafine grain structures of a commercial aluminum alloy is presented. The results show that the technology is a promising technique to produce ultrafine-grained structures of aluminum alloys for the high rate superplastic forming.

Department(s)

Materials Science and Engineering

Keywords and Phrases

MAXStrain technology; Severe plastic deformation; Ultra-fine grain

International Standard Serial Number (ISSN)

1662-9752; 0255-5476

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Trans Tech Publications, All rights reserved.

Publication Date

01 Jan 2001

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