The Twin and Twin System in FCT L10 θ-MnNi Phase in an Equiatomic Mn-Ni Alloy
SCOPUS
- Title
- The Twin and Twin System in FCT L10 θ-MnNi Phase in an Equiatomic Mn-Ni Alloy
- Authors
- HEO, YOON UK; Lee, Hu-Chul
- Date Issued
- 2007-09
- Publisher
- Japan Institute of Metals
- Abstract
- This study examined the twinning mechanism and operating twin system of a face centered tetragonal (FCT) L10 θ-MnNi phase in an equiatomic Mn-Ni alloy using detailed TEM analysis (electron diffraction, high resolution imaging, and HAADF (Z-contrast) imaging techniques) of the structure of the twins formed during the β (B2, bcc) to θ (L10, fct) phase transformation. In addition to the well-documented {111}1⁄6⟨112] deformation twinning system in L10 crystals, {111}1⁄6⟨211]* type pseudo-twin systems were also observed. The Z-contrast image of the twins showed that no atomic shuffling occurred during twinning in the θ-MnNi phase and atomic order was maintained in the {111}1⁄6⟨112] type true-twins.
*in ⟨ijk], i and j are interchangeable in the tetragonal system but k is not.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/105776
- DOI
- 10.2320/matertrans.md200782
- ISSN
- 1345-9678
- Article Type
- Article
- Citation
- Materials Transactions, vol. 48, no. 10, page. 2546 - 2550, 2007-09
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- There are no files associated with this item.
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