Twinning and the orientation relationships of icosahedral phase with the magnesium matrix

Alok Singh; M. Watanabe; A. Kato; A. P. Tsai

doi:10.1016/j.actamat.2005.06.026

Twinning and the orientation relationships of icosahedral phase with the magnesium matrix

Alok Singh, M. Watanabe, A. Kato, A. P. Tsai

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

26 Citations (Scopus)

Abstract

Five possible orientation relationships OR1 to OR5 of icosahedral quasicrystal with magnesium matrix are derived and experimental evidences are shown. In three of these, an icosahedral twofold axis occurs along the hexagonal axis of magnesium, symmetrically in the case of OR1 and OR2 and asymmetrically in OR5. A fivefold axis occurs along the magnesium hexagonal axis in OR3. An icosahedral "mirror" zone axis occurs along the hexagonal axis in OR4. These orientation relationships are related by {1 0 2} twinning of magnesium or twinning of the icosahedral phase. OR2 and OR3 can form from the OR1 by a {1 0 2} twinning of the matrix. At the same time, twinning of an icosahedral phase which makes OR1 with magnesium can create OR3 with the same matrix. OR4 forms on a particular twinning of the icosahedral phase in OR1 and OR2 while OR5 can be derived by a twinning of the icosahedral phase in OR3.

Original language	English
Pages (from-to)	4733-4742
Number of pages	10
Journal	Acta Materialia
Volume	53
Issue number	17
DOIs	https://doi.org/10.1016/j.actamat.2005.06.026
Publication status	Published - 2005 Oct

Keywords

Electron diffraction
Magnesium alloys
Orientation relationship
Quasicrystals
Twinning

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

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10.1016/j.actamat.2005.06.026

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title = "Twinning and the orientation relationships of icosahedral phase with the magnesium matrix",

abstract = "Five possible orientation relationships OR1 to OR5 of icosahedral quasicrystal with magnesium matrix are derived and experimental evidences are shown. In three of these, an icosahedral twofold axis occurs along the hexagonal axis of magnesium, symmetrically in the case of OR1 and OR2 and asymmetrically in OR5. A fivefold axis occurs along the magnesium hexagonal axis in OR3. An icosahedral {"}mirror{"} zone axis occurs along the hexagonal axis in OR4. These orientation relationships are related by {1 0 2} twinning of magnesium or twinning of the icosahedral phase. OR2 and OR3 can form from the OR1 by a {1 0 2} twinning of the matrix. At the same time, twinning of an icosahedral phase which makes OR1 with magnesium can create OR3 with the same matrix. OR4 forms on a particular twinning of the icosahedral phase in OR1 and OR2 while OR5 can be derived by a twinning of the icosahedral phase in OR3.",

keywords = "Electron diffraction, Magnesium alloys, Orientation relationship, Quasicrystals, Twinning",

author = "Alok Singh and M. Watanabe and A. Kato and Tsai, {A. P.}",

note = "Funding Information: The authors are grateful to Prof. S. Ranganathan for stimulating discussions. This work is partly supported by the Japan Science and Technology Corporation.",

year = "2005",

month = oct,

doi = "10.1016/j.actamat.2005.06.026",

language = "English",

volume = "53",

pages = "4733--4742",

journal = "Acta Materialia",

issn = "1359-6454",

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TY - JOUR

T1 - Twinning and the orientation relationships of icosahedral phase with the magnesium matrix

AU - Singh, Alok

AU - Watanabe, M.

AU - Kato, A.

AU - Tsai, A. P.

N1 - Funding Information: The authors are grateful to Prof. S. Ranganathan for stimulating discussions. This work is partly supported by the Japan Science and Technology Corporation.

PY - 2005/10

Y1 - 2005/10

N2 - Five possible orientation relationships OR1 to OR5 of icosahedral quasicrystal with magnesium matrix are derived and experimental evidences are shown. In three of these, an icosahedral twofold axis occurs along the hexagonal axis of magnesium, symmetrically in the case of OR1 and OR2 and asymmetrically in OR5. A fivefold axis occurs along the magnesium hexagonal axis in OR3. An icosahedral "mirror" zone axis occurs along the hexagonal axis in OR4. These orientation relationships are related by {1 0 2} twinning of magnesium or twinning of the icosahedral phase. OR2 and OR3 can form from the OR1 by a {1 0 2} twinning of the matrix. At the same time, twinning of an icosahedral phase which makes OR1 with magnesium can create OR3 with the same matrix. OR4 forms on a particular twinning of the icosahedral phase in OR1 and OR2 while OR5 can be derived by a twinning of the icosahedral phase in OR3.

AB - Five possible orientation relationships OR1 to OR5 of icosahedral quasicrystal with magnesium matrix are derived and experimental evidences are shown. In three of these, an icosahedral twofold axis occurs along the hexagonal axis of magnesium, symmetrically in the case of OR1 and OR2 and asymmetrically in OR5. A fivefold axis occurs along the magnesium hexagonal axis in OR3. An icosahedral "mirror" zone axis occurs along the hexagonal axis in OR4. These orientation relationships are related by {1 0 2} twinning of magnesium or twinning of the icosahedral phase. OR2 and OR3 can form from the OR1 by a {1 0 2} twinning of the matrix. At the same time, twinning of an icosahedral phase which makes OR1 with magnesium can create OR3 with the same matrix. OR4 forms on a particular twinning of the icosahedral phase in OR1 and OR2 while OR5 can be derived by a twinning of the icosahedral phase in OR3.

KW - Electron diffraction

KW - Magnesium alloys

KW - Orientation relationship

KW - Quasicrystals

KW - Twinning

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JO - Acta Materialia

JF - Acta Materialia

IS - 17

ER -

Twinning and the orientation relationships of icosahedral phase with the magnesium matrix

Abstract

Keywords

ASJC Scopus subject areas

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