Long-period antiphase domains and short-range order in a B2 matrix of the AlCoCrFeNi high-entropy alloy

Yatir Linden; Malki Pinkas; Abraham Munitz; Louisa Meshi

doi:10.1016/j.scriptamat.2017.06.015

Long-period antiphase domains and short-range order in a B2 matrix of the AlCoCrFeNi high-entropy alloy

Yatir Linden, Malki Pinkas, Abraham Munitz, Louisa Meshi

Research output: Contribution to journal › Article › peer-review

70 Scopus citations

Abstract

B2 matrices of the dendrite (DR) and interdendrite (ID) areas in the studied AlCoCrFeNi alloy contain domains with different order. In the ID region, short range order of domains, manifested by diffuse scattering in the electron diffraction patterns, was observed. Domains in the DR region are arranged periodically (with modulation vector of 1/5[110]). Strain assessment in the particles/matrix interface hints arrested growth of the particles in the DR area. To our understanding, type of order of the domains and strain, associated with them, are dominant factors influencing the microstructures of the DR and ID areas.

Original language	English
Pages (from-to)	49-52
Number of pages	4
Journal	Scripta Materialia
Volume	139
DOIs	https://doi.org/10.1016/j.scriptamat.2017.06.015
State	Published - Oct 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Acta Materialia Inc.

Keywords

Antiphase domains
Dendritic growth
High entropy alloys
Ordering
Transmission electron microscopy

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10.1016/j.scriptamat.2017.06.015

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title = "Long-period antiphase domains and short-range order in a B2 matrix of the AlCoCrFeNi high-entropy alloy",

abstract = "B2 matrices of the dendrite (DR) and interdendrite (ID) areas in the studied AlCoCrFeNi alloy contain domains with different order. In the ID region, short range order of domains, manifested by diffuse scattering in the electron diffraction patterns, was observed. Domains in the DR region are arranged periodically (with modulation vector of 1/5[110]). Strain assessment in the particles/matrix interface hints arrested growth of the particles in the DR area. To our understanding, type of order of the domains and strain, associated with them, are dominant factors influencing the microstructures of the DR and ID areas.",

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AU - Linden, Yatir

AU - Pinkas, Malki

AU - Munitz, Abraham

AU - Meshi, Louisa

PY - 2017/10

Y1 - 2017/10

N2 - B2 matrices of the dendrite (DR) and interdendrite (ID) areas in the studied AlCoCrFeNi alloy contain domains with different order. In the ID region, short range order of domains, manifested by diffuse scattering in the electron diffraction patterns, was observed. Domains in the DR region are arranged periodically (with modulation vector of 1/5[110]). Strain assessment in the particles/matrix interface hints arrested growth of the particles in the DR area. To our understanding, type of order of the domains and strain, associated with them, are dominant factors influencing the microstructures of the DR and ID areas.

AB - B2 matrices of the dendrite (DR) and interdendrite (ID) areas in the studied AlCoCrFeNi alloy contain domains with different order. In the ID region, short range order of domains, manifested by diffuse scattering in the electron diffraction patterns, was observed. Domains in the DR region are arranged periodically (with modulation vector of 1/5[110]). Strain assessment in the particles/matrix interface hints arrested growth of the particles in the DR area. To our understanding, type of order of the domains and strain, associated with them, are dominant factors influencing the microstructures of the DR and ID areas.

KW - Antiphase domains

KW - Dendritic growth

KW - High entropy alloys

KW - Ordering

KW - Transmission electron microscopy

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Long-period antiphase domains and short-range order in a B2 matrix of the AlCoCrFeNi high-entropy alloy

Abstract

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Keywords

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