A method for determining r-value of aluminum sheets with the Portevin-Le Chatelier effect
Abstract
Lankford coefficient (r-value) is an important parameter for metal sheet. For sheet metals with obvious Portevin-Le Chatelier (PLC) effect, the r-values are difficult to measure owing to the occurrence of inhomogeneous deformation. In this paper, the PLC bands of AA3104-H19 sheet were investigated by uniaxial tensile test with digital image correlation (DIC) technology. The result showed that inclination of the PLC band keeps invariable with...
Paper Details
Title
A method for determining r-value of aluminum sheets with the Portevin-Le Chatelier effect
Published Date
May 1, 2021
Volume
814
Pages
141246 - 141246
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