4.7 Article

Pronounced low-temperature superplasticity of friction stir processed Mg-9Li-1Zn alloy

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2020.139071

Keywords

Mg-Li alloy; Friction stir processing; Microstructure; Superplasticity

Funding

  1. New Energy and Industrial Technology Development Organization (NEDO) under the Innovation Structural Materials Project (Future Pioneering Projects)

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Ultrafine Mg-9Li-1Zn alloy with average grain sizes of similar to 0.61 mu m (alpha phase) and similar to 0.96 mu m (beta phase) was obtained by friction stir processing. A pronounced superplasticity from 369% to 1104% was obtained at 473 K over a wide range of strain rates from 10(-1)/s to 10(-4)/s.

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