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The characteristics of cavitation in superplastic metals and ceramics

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Abstract

It is now well established that cavities are often formed during superplastic deformation. However, experimental investigations suggest important differences in the nature of the cavitation in typical superplastic metals and ceramics. These differences are demonstrated with reference to a superplastic Cu-based alloy and yttria-stabilized tetragonal zirconia (Y-TZP). By using a quantitative metallo-graphic procedure and scanning video images, measurements are presented showing the size, shape, and configuration of internal cavities in these two materials after deformation at high temperatures.

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Authors and Affiliations

  1. Departments of Materials Science and Mechanical Engineering, University of Southern California, 90089-1453, Los Angeles, CA

    Yan Ma (Research Assistant Professor) & Terence G. Langdon (Professor)

Authors
  1. Yan Ma
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  2. Terence G. Langdon
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Additional information

This article is based on a presentation made at the “High Temperature Fracture Mechanisms in Advanced Materials” symposium as part of the 1994 Fall meeting of TMS, October 2-6, 1994, in Rosemont, Illinois, under the auspices of the ASM/SMD Flow and Fracture Committee.

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Ma, Y., Langdon, T.G. The characteristics of cavitation in superplastic metals and ceramics. Metall Mater Trans A 27, 873–878 (1996). https://doi.org/10.1007/BF02649754

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