TY - JOUR
T1 - The effect of prestrain and subsequent annealing on the mechanical behavior of AA5182-O
AU - Li, Jingjing
AU - Kim, Sooho
AU - Lee, Theresa M.
AU - Krajewski, Paul E.
AU - Wang, Hui
AU - Hu, S. Jack
N1 - Funding Information:
The authors greatly acknowledge the support of the General Motors Collaborative Research Lab in Advanced Vehicle Manufacturing at The University of Michigan and the helpful discussions with Dr. John E. Carsley and Dr. Louis G. Hector at GM R&D.
PY - 2011/4/25
Y1 - 2011/4/25
N2 - The effect of uniaxial tensile prestrain and subsequent annealing on the post-annealing mechanical properties (elongation, yield stress and strain-hardening exponent) of AA5182-O was investigated. Experiments were performed at four prestrain levels (5, 10, 15, and 20%) and three annealing temperatures (300, 350, and 400 °C), with holding times ranging from 5. s to 1. h. Empirical models for the yield stress of post-annealing AA5182-O were developed in terms of the applied prestrain, annealing temperature, and time for static recovery and recrystallization processes. The strain-hardening exponent was shown to have a linear correlation with the logarithm of yield stress. The above models can be used in formability analyses and forming process optimization.
AB - The effect of uniaxial tensile prestrain and subsequent annealing on the post-annealing mechanical properties (elongation, yield stress and strain-hardening exponent) of AA5182-O was investigated. Experiments were performed at four prestrain levels (5, 10, 15, and 20%) and three annealing temperatures (300, 350, and 400 °C), with holding times ranging from 5. s to 1. h. Empirical models for the yield stress of post-annealing AA5182-O were developed in terms of the applied prestrain, annealing temperature, and time for static recovery and recrystallization processes. The strain-hardening exponent was shown to have a linear correlation with the logarithm of yield stress. The above models can be used in formability analyses and forming process optimization.
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U2 - 10.1016/j.msea.2010.12.014
DO - 10.1016/j.msea.2010.12.014
M3 - Article
AN - SCOPUS:79952280944
VL - 528
SP - 3905
EP - 3914
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 10-11
ER -