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Magnesium Technology 2019 pp 289–296Cite as

Multiaxial Cyclic Response of Low Temperature Closed-Die Forged AZ31B Mg Alloy

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Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

The present study investigates the multiaxial fatigue behavior of extruded AZ31B Mg alloy forged at 250 °C. Fatigue samples were tested under axial–shear loading at phase angles of 0°, 45° and 90°. The microstructural analysis identified dynamic recrystallization, which resulted in a degree of grain refinement of the forged microstructure in addition to a modification of the original extrusion texture . Quasi-static testing showed that the forged material retained the high yield strength of the extrusion condition with a substantial increase in failure strain. Under multiaxial loading, cyclic axial strain significantly affected the shear hysteresis behavior while the effect of cyclic shear strain on the axial hysteresis was less pronounced. Despite a notable change in shear hysteresis shape , fatigue life was only slightly affected by the changes in phase angle.

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Acknowledgements

The financial support of the Natural Sciences and Engineering Research Council of Canada (NSERC) through the Automotive Partnership Canada (APC) program under APCPJ 459269–13 grant with contributions from Multimatic Technical Centre, Ford Motor Company, and Centerline Windsor are acknowledged. The authors would also like to thank J. McKinley and L. Blaga of CanmetMATERIALS for assistance with the forging trials.

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Authors and Affiliations

  1. Department of Mechanical & Mechatronics Engineering, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada

    D. Toscano, S. K. Shaha, B. Behravesh & H. Jahed

  2. CanmetMATERIALS, Natural Resources Canada, 183 Longwood Road South, Hamilton, ON, L8P 0A1, Canada

    B. Williams

Authors
  1. D. Toscano
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  2. S. K. Shaha
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  3. B. Behravesh
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  4. H. Jahed
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  5. B. Williams
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Corresponding author

Correspondence to S. K. Shaha .

Editor information

Editors and Affiliations

  1. Pacific Northwest National Laboratory, Richland, WA, USA

    Vineet V. Joshi

  2. The University of Alabama, Tuscaloosa, AL, USA

    J. Brian Jordon

  3. Lund University, Lund, Sweden

    Dmytro Orlov

  4. IND LLC, South Jordan, UT, USA

    Neale R. Neelameggham

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© 2019 The Minerals, Metals & Materials Society

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Toscano, D., Shaha, S.K., Behravesh, B., Jahed, H., Williams, B. (2019). Multiaxial Cyclic Response of Low Temperature Closed-Die Forged AZ31B Mg Alloy. In: Joshi, V., Jordon, J., Orlov, D., Neelameggham, N. (eds) Magnesium Technology 2019. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05789-3_43

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