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Mg Alloys: Challenges and Achievements in Controlling Performance, and Future Application Perspectives Read chapter Read first chapter

2018 | OriginalPaper | Chapter

Effect of Ca on the Microstructure and Mechanical Properties in Mg Alloys

Authors : E. I. Andritsos, G. C. G. Skinner, A. T. Paxton

Published in: Magnesium Technology 2018

Publisher: Springer International Publishing

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Abstract

Rare Earth (RE)-free Mg alloys suffer from low formability due to strong textures and highly anisotropic deformation modes. In the present study, we examine the effects of Ca addition on microstructure and mechanical properties of Mg–Li–Ca and Mg–Zn–Ca alloys. Based on experimental observations, Ca is reported as the element that should solid-solution strengthen Mg–Li alloys due to its significant size mismatch and weaken the texture in Mg–Zn alloys, similarly to the RE contribution in Mg alloys. Using the density functional theory (DFT) we examine the intrinsic type II stacking faults in the basal and pyramidal I planes. We try different alloy compositions in order to understand the solid-solution effect on the different stacking faults and reduce the high plastic anisotropy in Mg alloys mechanical properties.

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previous chapter Surface and Interfacial Energies of Mg17Al12–Mg System
next chapter Investigation of Grain Refinement Method for AZ91 Alloy Using Carbide Inoculation
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Metadata
Title
Effect of Ca on the Microstructure and Mechanical Properties in Mg Alloys
Authors
E. I. Andritsos
G. C. G. Skinner
A. T. Paxton
Copyright Year
2018
Book
Magnesium Technology 2018

Print ISBN: 978-3-319-72331-0

Electronic ISBN: 978-3-319-72332-7

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-72332-7_11

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