High-temperature mechanical behavior and hot rolling of AA705X

S. F. Harnish, H. A. Padilla, B. E. Gore, J. A. Dantzig, A. J. Beaudoin, I. M. Robertson, H. Weiland

Research output: Contribution to journalArticlepeer-review

Abstract

High-temperature mechanical behavior and processing performance of 705X aluminum alloys is examined, employing a combination of mechanical testing, microscopy, and computational modeling. We perform hot uniaxial compression tests over a range of temperatures and strain rates and fit the data to power-law constitutive models. These models are supported and expanded by microscopy and calorimetry, which help to elucidate the operating deformation mechanisms and examine damage evolution. The mechanical behavior constitutive relations are implemented in a finite-element code to simulate the hot rolling process. The results of the rolling simulation are used to predict final product crystallographic texture, which is compared with experimental electron backscattered diffraction measurements for model validation. Finally, we propose a parameter to characterize the development of damage during processing. This work provides a solid foundation for the design of thermomechanical processing of these alloys to maximize yield and optimize process performance.

Original languageEnglish (US)
Pages (from-to)357-369
Number of pages13
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume36 A
Issue number2
DOIs
StatePublished - Feb 2005

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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