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Effect of Hot Working on the High Cycle Fatigue Behavior of WE43 Rare Earth Magnesium Alloy

  • Saeede Ghorbanpour
  • Brandon A. McWilliams
  • Marko KnezevicEmail author
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Monotonic and cyclic behavior of the alloy WE43 plates in two conditions is examined, with an emphasis on revealing microstructural features governing the differences in the behavior of the two plates. To facilitate the evaluation of the effect of hot working conditions on the behavior, the as-cast WE43 was converted into two rolled plates with one being rolled at a temperature for 16.5 °C higher than the other plate. The plates were further processed into the T5 condition. The T5 plate rolled at a lower temperature was found to have a higher strength and elongation to fracture in tension. Additionally, it exhibited superior high cyclic fatigue behavior at room and elevated temperatures. The interesting performance characteristics of the alloy in two conditions are rationalized in terms of their microstructures. The results reveal that it is possible to further optimize the hot working conditions to obtain the alloy exhibiting better performances.

Keywords

Magnesium alloys Microstructures Cyclic behavior High cycle fatigue 

Notes

Acknowledgements

This research was sponsored by the US Army Research Laboratory and was accomplished under Cooperative Agreement Number W911NF-15-2-0084.

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Saeede Ghorbanpour
    • 1
  • Brandon A. McWilliams
    • 2
  • Marko Knezevic
    • 3
    Email author
  1. 1.Department of Mechanical EngineeringUniversity of New HampshireDurhamUSA
  2. 2.Weapons and Materials Research Directorate, US Army Research Laboratory, Aberdeen Proving GroundAberdeenUSA
  3. 3.Department of Mechanical EngineeringUniversity of New HampshireDurhamUSA

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