The effect of prestrain and subsequent annealing on the mechanical behavior of AA5182-O

Jingjing Li, Sooho Kim, Theresa M. Lee, Paul E. Krajewski, Hui Wang, S. Jack Hu

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)3905-3914
Number of pages10
JournalMaterials Science and Engineering A
Volume528
Issue number10-11
DOIs
StatePublished - Apr 25 2011

Fingerprint

Annealing
annealing
Yield stress
strain hardening
Strain hardening
exponents
Formability
logarithms
elongation
Elongation
recovery
mechanical properties
Recovery
Mechanical properties
Temperature
optimization
temperature
Experiments

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Li, Jingjing ; Kim, Sooho ; Lee, Theresa M. ; Krajewski, Paul E. ; Wang, Hui ; Hu, S. Jack. / The effect of prestrain and subsequent annealing on the mechanical behavior of AA5182-O. In: Materials Science and Engineering A. 2011 ; Vol. 528, No. 10-11. pp. 3905-3914.
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The effect of prestrain and subsequent annealing on the mechanical behavior of AA5182-O. / Li, Jingjing; Kim, Sooho; Lee, Theresa M.; Krajewski, Paul E.; Wang, Hui; Hu, S. Jack.

In: Materials Science and Engineering A, Vol. 528, No. 10-11, 25.04.2011, p. 3905-3914.

Research output: Contribution to journalArticle

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AU - Li, Jingjing

AU - Kim, Sooho

AU - Lee, Theresa M.

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AU - Wang, Hui

AU - Hu, S. Jack

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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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