A model for superplastic flow induced texture annihilation

A phenomenological model that simulates the frequently observed texture annihilation during superplastic deformation is presented using the random walk process as an analogy. This phenomenon has been described as Orientation diffusion'. The model has been validated by considering the texture ch...

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Bibliographic Details
Published inModelling and simulation in materials science and engineering Vol. 8; no. 4; pp. 477 - 490
Main Authors Engler, O, Padmanabhan, K A, Lücke, K
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.07.2000
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Summary:A phenomenological model that simulates the frequently observed texture annihilation during superplastic deformation is presented using the random walk process as an analogy. This phenomenon has been described as Orientation diffusion'. The model has been validated by considering the texture changes accompanying superplastic deformation in the alloy SUPRAL 100 (Al-6.5%Cu-0.4%Zr). The resulting Orientation diffusion coefficient' is given physical significance in terms of two processes present during superplastic flow, namely grain boundary sliding and grain rotation.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0965-0393
1361-651X
DOI:10.1088/0965-0393/8/4/306