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 Scopus citations

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

All Science Journal Classification (ASJC) codes

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

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