Texture-directed twin formation propensity in Al with high stacking fault energy
| Autor: | Zhe Fan, Haiyan Wang, Qiang Li, Xinghang Zhang, Jie Ding, R. Su, Sichuang Xue, Winson C. H. Kuo |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Diffraction Materials science Polymers and Plastics Metals and Alloys chemistry.chemical_element 02 engineering and technology Cubic crystal system 021001 nanoscience & nanotechnology 01 natural sciences Electronic Optical and Magnetic Materials Crystallography chemistry Sputtering Transmission electron microscopy Stacking-fault energy Aluminium 0103 physical sciences Ceramics and Composites Texture (crystalline) Composite material 0210 nano-technology Ductility |
| Zdroj: | Acta Materialia. 144:226-234 |
| ISSN: | 1359-6454 |
| DOI: | 10.1016/j.actamat.2017.10.053 |
| Popis: | Twin boundaries can enhance the strength and preserve the ductility of a variety of metallic materials with face centered cubic structures. However, twin boundaries are rare in aluminum due to its high stacking fault energy. There are limited successes for the formation of nanotwins in Al. Here, we show that twin morphology and twin density in Al can be altered by tailoring the textures of films. Transmission Kikuchi diffraction and transmission electron microscopy studies on (111), (110) and (112) textured Al films indicate that Al (112) film has the highest twin density. Two design criteria are identified for the introduction of a high density of growth twins into Al. |
| Databáze: | OpenAIRE |
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