Effect of alloying elements in magnesium on deformation twin characteristics

Mariyappan, Arul Kumar; Beyerlein, Irene Jane; Lebensohn, Ricardo A.; Tome, Carlos

doi:10.1007/978-3-319-52392-7_25

Title: Effect of alloying elements in magnesium on deformation twin characteristics

Journal Article · Thu Feb 16 00:00:00 EST 2017 · Magnesium Technology

DOI:https://doi.org/10.1007/978-3-319-52392-7_25· OSTI ID:1526945

^[1]; Beyerlein, Irene Jane ^[1];

^[1]; Tome, Carlos ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

HCP magnesium metals are widely used in different industries due to their low density and high specific strength. Their applicability is restricted due to poor formability and high anisotropy in deformation behavior. The formability of magnesium can be improved by alloying additions and this modification can affect macroscopic plastic anisotropy. Alloying additions can also significantly control the twinning process. In this work we use a crystal plasticity based Fast Fourier Transform model to characterize deformation twinning in different alloy types. In the model, the influence of alloying additions is represented through their effect on the critical resolved shear stress (CRSS) values for all slip and twinning modes. From this study, we build an understanding of the influence of alloying elements on twin growth and twin transmission behavior. Lastly, a new plastic anisotropy measure is proposed to quantify the effects of alloying elements on some important twinning characteristics in magnesium alloys.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: 89233218CNA000001

OSTI ID:: 1526945

Report Number(s):: LA-UR-6-26887

Journal Information:: Magnesium Technology, Vol. 2017; ISSN 1545-4150

Publisher:: Springer NatureCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 6 works

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References (21)

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36 MATERIALS SCIENCE
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Title: Effect of alloying elements in magnesium on deformation twin characteristics

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