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Effect of Lubrication on the Evolution of Texture and Microstructure in AA5052 Sheet during Shape Rolling

Authors
Park, Eun-SooKang, Hyung-GuHuh, Moo-YoungKim, Hwi-JunBae, Jung-Chan
Issue Date
Jun-2009
Publisher
KOREAN INST METALS MATERIALS
Keywords
shape rolling; strain state; texture; microstructure; finite element method
Citation
JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS, v.47, no.6, pp.363 - 371
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS
Volume
47
Number
6
Start Page
363
End Page
371
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119948
ISSN
1738-8228
Abstract
The effect of lubrication on the evolution of strain states during shape rolling in AA5052 sheet was studied by the finite element method (FEM) simulation. The strain states calculated by FEM were verified by texture analysis. Shape rolling with and without lubrication produces shape-rolled samples in fairly similar outer shapes, since the distribution of normal strain components is nearly independent of the lubrication condition. In contrast, the distribution of shear strain components strongly depends on the lubrication condition. Shape rolling without lubrication gives rise to the development of strong shear strain gradients leading to the formation of highly inhomogenous textures and microstructures. The {011}//ND fiber develops during rolling with the operation of plane strain plus epsilon(22).
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