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Effect of Impurity Content on Cavitation in the Superplastic Zn-22 Pct Al Alloy

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  • Mechanical Behavior
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Abstract

Micrograin superplasticity refers to the ability of some materials to exhibit neck-free strains of several hundred percent upon deformation. The two basic prerequisites for the observation of micrograin superplasticity are (a) a temperature greater than about one half of the melting point,T m, and (b) a fine, stable, and equiaxed grain size that does not undergo significant growth during elevatedtemperature deformation. In addition to these two prerequisites, grain boundaries need to be mobile, high-angled, and able to resist tensile separation.

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Authors and Affiliations

  1. Materials Section, Department of Mechanical Engineering, University of California, 92717, Irvine, CA

    Kyung-Tae Park (Graduate Research Assistant) & Farghalli A. Mohamed (Professor)

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  1. Kyung-Tae Park
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  2. Farghalli A. Mohamed
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Park, KT., Mohamed, F.A. Effect of Impurity Content on Cavitation in the Superplastic Zn-22 Pct Al Alloy. Metall Trans A 21, 2605–2608 (1990). https://doi.org/10.1007/BF02647008

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  • DOI: https://doi.org/10.1007/BF02647008

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