High Performance Mg6Zn Nanocomposites Fabricated through Friction Stir Processing

Abstract

Mg-based metal matrix nanocomposites (MMNCs) are expected to provide significant enhancement of properties by introducing thermally stable ceramic nanoparticles into the metal matrix. However, it is extremely difficult to achieve a uniform distribution of nanoparticles in the magnesium matrix for the predicted significant property enhancement. In this study an unprecedented uniform distribution and dispersion of 6 vol.% SiC nanoparticles in Mg6Zn matrix was obtained through a novel scalable processing method that combines semi-solid mechanical mixing and solid-state friction stir processing. The resulting Mg6Zn nanocomposites exhibit tremendous hardness and strength enhancement. The results provide a viable pathway for the development and production of high performance Mg-based nanocomposites for numerous applications.

Meeting Name

2015 Magnesium Technology Symposium held during TMS2015 144th Annual Meeting and Exhibition (2015: Mar. 15-19, Orlando, FL)

Department(s)

Mechanical and Aerospace Engineering

Second Department

Materials Science and Engineering

Keywords and Phrases

Friction; Friction stir welding; Magnesium; Metal nanoparticles; Mixing; Nanocomposites; Nanoparticles; Processing; Silicon carbide; Tribology; Ceramic nanoparticles; Friction stir processing; Mechanical mixing; Metal matrix nano composites; Processing method; SiC nanoparticles; Strength enhancement; Uniform distribution; Metallic matrix composites; Mg6Zn nanocomposites; Semi-solid mechanical mixing

International Standard Book Number (ISBN)

978-1-119-08243-9

International Standard Serial Number (ISSN)

1545-4150

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Minerals, Metals and Materials Society (TMS), All rights reserved.

Publication Date

01 Mar 2015

Link to Full Text

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