Processing magnesium alloys by severe plastic deformation

The use of severe plastic deformation techniques for processing magnesium alloys has moved from the early difficulties of processing to a stage of tailoring the best properties of these materials. The present paper reviews processing, structure and mechanical properties characterization. It is shown...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2014-08, Vol.63 (1), p.12171
Main Authors: Figueiredo, Roberto B, Aguilar, Maria Teresa P, Cetlin, Paulo Roberto, Langdon, Terence G
Format: Article
Language:English
Subjects:
Anisotropy
Equal channel angular pressing
Magnesium alloys
Magnesium base alloys
Mechanical properties
Plastic deformation
Room temperature
Structural analysis
Superplasticity
Ultrafines
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Summary:The use of severe plastic deformation techniques for processing magnesium alloys has moved from the early difficulties of processing to a stage of tailoring the best properties of these materials. The present paper reviews processing, structure and mechanical properties characterization. It is shown that ultrafine-grained structures are obtained in magnesium alloys processed by multiple passes of Equal-Channel Angular Pressing at moderate temperatures. Ultrafine-grained structures are also obtained by room temperature processing by High- Pressure Torsion. The ultrafine-grained structures increase strength and introduce excellent superplastic capabilities in many magnesium alloys. Moreover, processing magnesium alloys by severe plastic deformation leads to the development of anisotropy in mechanical behavior.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/63/1/012171