Title

Effect of Friction Stir Processing on Microstructure and Mechanical Properties of a Cast-magnesium-rare Earth Alloy

Abstract

Single-pass friction stir processing (FSP) was used to increase the mechanical properties of a cast Mg-Zn-Zr-rare earth (RE) alloy, Elektron 21. A fine grain size was achieved through intense plastic deformation and the control of heat input during processing. The effects of processing and heat treatment on the mechanical and microstructural properties were evaluated. An aging treatment of 16 hours at 200 °C resulted in a 0.2 pct proof stress of 275 MPa in the FSP material, a 61 pct improvement over the cast + T6 condition.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Cast-Magnesium; Friction Stir; Mechanical Properties; Rare Earth Alloy

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2010 Springer Verlag, All rights reserved.


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