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Elemental segregation to twin boundaries in a MnAl ferromagnetic Heusler alloy

MPS-Authors
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Palanisamy,  Dhanalakshmi
Atom Probe Tomography, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Raabe,  Dierk
Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Gault,  Baptiste
Atom Probe Tomography, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Citation

Palanisamy, D., Raabe, D., & Gault, B. (2018). Elemental segregation to twin boundaries in a MnAl ferromagnetic Heusler alloy. Scripta Materialia, 155, 144-148. doi:10.1016/j.scriptamat.2018.06.037.


Cite as: https://hdl.handle.net/21.11116/0000-0001-AE0B-0
Abstract
Electron microscopy and atom probe tomography were combined to investigate the crystallography and chemistry of a single twin boundary (TB) in a rare-earth-free ferromagnetic MnAl Heusler alloy. The results establish a significant segregation of Mn along the twin boundaries. An enrichment of approx. ~8 at. Mn was measured along the twin boundary with a confined depletion outside the twin boundary, suggesting short range solute diffusion occurring during massive transformation. © 2018 Elsevier Ltd