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Effects of Crystallographic Texture on Internal Stress Superplasticity Induced by Anisotropic Thermal Expansion

Published online by Cambridge University Press:  10 February 2011

K. Kitazono ,
R. Hirasaka ,
E. Sato ,
K. Kuribayashi  and
T. Motegi
K. Kitazono
Affiliation:
The Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
R. Hirasaka
Affiliation:
Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-8588, Japan
E. Sato
Affiliation:
The Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
K. Kuribayashi
Affiliation:
The Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
T. Motegi
Affiliation:
Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-8588, Japan
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Abstract

Polycrystalline materials having crystallographic anisotropy show internal stress superplasticity under thermal cycling conditions. The deformation mechanism is analyzed using a theoretical model based on continuum micromechanics including the effects of crystallographic texture. The model is experimentally verified through the thermal cycling creep tests using polycrystalline zinc having two kinds of fiber-texture, and agrees well with the experimental results.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 601: Symposium HH – Superplasticity-Current Status & Future Potential , 1999 , 199
Copyright
Copyright © Materials Research Society 2000

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