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Magnesium Technology 2011 pp 55–60Cite as

Experiments and Modeling of Fatigue Damage in Extruded Mg AZ61 Alloy

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Abstract

In this study, structure-property relations with respect to fatigue of an extruded AZ61 magnesium alloy were experimentally quantified. Strain-life experiments were conducted in the extruded and transverse orientations under low and high cycle conditions. The cyclic behavior of this alloy displayed varying degrees of cyclic hardening depending on the strain amplitude and the specimen orientation. The fracture surfaces of the fatigued specimens were analyzed using a scanning electron microscope in order to quantify structure-property relations with respect to number of cycles to failure. Intermetallic particles were found to be the source of fatigue initiation on a majority of fracture surfaces. Finally, a multistage fatigue model based on the relative microstructural sensitive features quantified in this study was employed to capture the anisotropic fatigue damage of the AZ61 magnesium alloy.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, The University of Alabama, Tuscaloosa, Al, 35487, USA

    J. B. Jordon

  2. Center for Advanced Vehicular Systems (CAVS), Mississippi State University, Mississippi State, MS, 39762, USA

    J. B. Gibson & M. F. Horstemeyer

  3. Department of Mechanical Engineering, Mississippi State University, Mississippi State, MS, 39762, USA

    M. F. Horstemeyer

Authors
  1. J. B. Jordon
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  2. J. B. Gibson
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  3. M. F. Horstemeyer
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Editor information

Editors and Affiliations

  1. Netherlands Organization for Applied Scientific Research (TNO), Netherlands

    Wim H. Sillekens (Senior Scientist) (Senior Scientist)

  2. Department of Materials Science, Engineering at the University, Virginia, USA

    Sean R. Agnew (Research Chair and Associate Professor) (Research Chair and Associate Professor)

  3. US Magnesium LLC, USA

    Neale R. Neelameggham (Technical Development Scientist) (Technical Development Scientist)

  4. Materials Science Division, US Army Research Office (ARO), USA

    Suveen N. Mathaudhu (Program Manager, Dr. Mathaudhu also concurrently serves as an Adjunct Assistant Professor) (Program Manager, Dr. Mathaudhu also concurrently serves as an Adjunct Assistant Professor)

  5. Department of Materials Science and Engineering, North Carolina State University, USA

    Suveen N. Mathaudhu (Program Manager, Dr. Mathaudhu also concurrently serves as an Adjunct Assistant Professor) (Program Manager, Dr. Mathaudhu also concurrently serves as an Adjunct Assistant Professor)

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© 2011 TMS (The Minerals, Metals & Materials Society)

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Jordon, J.B., Gibson, J.B., Horstemeyer, M.F. (2011). Experiments and Modeling of Fatigue Damage in Extruded Mg AZ61 Alloy. In: Sillekens, W.H., Agnew, S.R., Neelameggham, N.R., Mathaudhu, S.N. (eds) Magnesium Technology 2011. Springer, Cham. https://doi.org/10.1007/978-3-319-48223-1_13

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