Title

High Strain Rate Superplasticity in Continuous Cast Al-Mg Alloys Prepared via Friction Stir Processing

Abstract

Friction stir processing (FSP) is very effective in refining the grain size of as-cast alloys. In this work, the effect of five FSP conditions on the high-temperature deformation properties of a continuous cast Al-Mg alloy has been investigated. It was observed that FSP broke down the cast structure and refined the grain size to less than 3 μm, enabling tensile elongation of over 800% at 530 °C with a strain rate of 3 × 10^−2 s^−1.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Friction Stir Processing; Grain Refining

Library of Congress Subject Headings

Aluminum alloys
Friction stir welding
Superplasticity

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 Elsevier, All rights reserved.

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