Solving Ambiguity in EBSD Indexing of Long-Period Stacking Ordered (LPSO) Phase in Mg with Template Matching Approach
Magnesium (Mg) alloys with long-period stacking ordered (LPSO) phases are receiving increasing interest because of their excellent mechanical performance. The close similarity in atomic stacking sequences between different LPSO polytypes and Mg lattice often leads to ambiguous indexing in electron b...
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2024-10-01
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| author | Yushun Liu Jian Yin Guo-zhen Zhu |
| author_facet | Yushun Liu Jian Yin Guo-zhen Zhu |
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| description | Magnesium (Mg) alloys with long-period stacking ordered (LPSO) phases are receiving increasing interest because of their excellent mechanical performance. The close similarity in atomic stacking sequences between different LPSO polytypes and Mg lattice often leads to ambiguous indexing in electron backscatter diffraction (EBSD), a commonly used material characterization technique. Instead of the Hough transformation approach used in commercial software, an alternative indexing approach, which can catch subtle differences by matching experimental patterns with simulated ones, is explored in this study. Our results, showing ~94% of mapping data being correctly indexed as the target phase, 14H LPSO, demonstrate the capability of not only resolving the LPSO phases but also distinguishing different LPSO polytypes. This approach offers a valuable, if not unique, solution for the microscale characterization of LPSO phases, enabling precise microstructure tuning to further promote the mechanical properties of Mg alloys. |
| format | Article |
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| institution | Kabale University |
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| spelling | doaj-art-69002b4eca4340c0a1f5351830b2cba12024-11-26T17:58:32ZengMDPI AGCrystals2073-43522024-10-01141193210.3390/cryst14110932Solving Ambiguity in EBSD Indexing of Long-Period Stacking Ordered (LPSO) Phase in Mg with Template Matching ApproachYushun Liu0Jian Yin1Guo-zhen Zhu2Department of Mechanical Engineering and Manitoba Institute for Materials, University of Manitoba, Winnipeg, MB R3T 5V6, CanadaDepartment of Mechanical Engineering and Manitoba Institute for Materials, University of Manitoba, Winnipeg, MB R3T 5V6, CanadaDepartment of Mechanical Engineering and Manitoba Institute for Materials, University of Manitoba, Winnipeg, MB R3T 5V6, CanadaMagnesium (Mg) alloys with long-period stacking ordered (LPSO) phases are receiving increasing interest because of their excellent mechanical performance. The close similarity in atomic stacking sequences between different LPSO polytypes and Mg lattice often leads to ambiguous indexing in electron backscatter diffraction (EBSD), a commonly used material characterization technique. Instead of the Hough transformation approach used in commercial software, an alternative indexing approach, which can catch subtle differences by matching experimental patterns with simulated ones, is explored in this study. Our results, showing ~94% of mapping data being correctly indexed as the target phase, 14H LPSO, demonstrate the capability of not only resolving the LPSO phases but also distinguishing different LPSO polytypes. This approach offers a valuable, if not unique, solution for the microscale characterization of LPSO phases, enabling precise microstructure tuning to further promote the mechanical properties of Mg alloys.https://www.mdpi.com/2073-4352/14/11/932LPSOmagnesiumEBSDtemplate matching |
| spellingShingle | Yushun Liu Jian Yin Guo-zhen Zhu Solving Ambiguity in EBSD Indexing of Long-Period Stacking Ordered (LPSO) Phase in Mg with Template Matching Approach Crystals LPSO magnesium EBSD template matching |
| title | Solving Ambiguity in EBSD Indexing of Long-Period Stacking Ordered (LPSO) Phase in Mg with Template Matching Approach |
| title_full | Solving Ambiguity in EBSD Indexing of Long-Period Stacking Ordered (LPSO) Phase in Mg with Template Matching Approach |
| title_fullStr | Solving Ambiguity in EBSD Indexing of Long-Period Stacking Ordered (LPSO) Phase in Mg with Template Matching Approach |
| title_full_unstemmed | Solving Ambiguity in EBSD Indexing of Long-Period Stacking Ordered (LPSO) Phase in Mg with Template Matching Approach |
| title_short | Solving Ambiguity in EBSD Indexing of Long-Period Stacking Ordered (LPSO) Phase in Mg with Template Matching Approach |
| title_sort | solving ambiguity in ebsd indexing of long period stacking ordered lpso phase in mg with template matching approach |
| topic | LPSO magnesium EBSD template matching |
| url | https://www.mdpi.com/2073-4352/14/11/932 |
| work_keys_str_mv | AT yushunliu solvingambiguityinebsdindexingoflongperiodstackingorderedlpsophaseinmgwithtemplatematchingapproach AT jianyin solvingambiguityinebsdindexingoflongperiodstackingorderedlpsophaseinmgwithtemplatematchingapproach AT guozhenzhu solvingambiguityinebsdindexingoflongperiodstackingorderedlpsophaseinmgwithtemplatematchingapproach |