Synthesis of high strength aluminum alloys in the Al–Ni–La system
| العنوان: | Synthesis of high strength aluminum alloys in the Al–Ni–La system |
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| المؤلفون: | Yandong Wang, P. F. Sha, Zhengwang Zhu, Zhuangqi Hu, Haifeng Zhang, Juan Mu |
| المصدر: | Journal of Materials Research. 29:708-717 |
| بيانات النشر: | Springer Science and Business Media LLC, 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | Materials science, Amorphous metal, Mechanical Engineering, Alloy, Metallurgy, Intermetallic, engineering.material, Condensed Matter Physics, Microstructure, Brittleness, Alonizing, Mechanics of Materials, Phase (matter), Volume fraction, engineering, General Materials Science |
| الوصف: | High strength aluminum (Al) alloys were prepared by rapid solidification method in the Al–Ni–La system. Microstructural characterizations show that all the investigated Al–Ni–La alloys are comprised of Al, rod-like Al3Ni, and blocky Al11La3 phases, of which the size and volume fraction are composition-dependent. The Al85.5Ni9.5La5 (at.%) alloy shows the finest microstructure, which contributes to the highest strength along with considerable plasticity. The experimental analysis and finite element simulation (FES) show that the distribution of the intermetallic phases greatly affects the mechanical properties of the alloys. The rod-like Al3Ni phase precipitated with the locally uniform direction prevents the propagation of cracks and benefits the plastic deformation, whereas the blocky Al11La3 phase exhibits the nature of brittleness and acts as the origin of the microcrack initiation. These findings suggest a new method to design high strength Al alloys. |
| تدمد: | 2044-5326 0884-2914 |
| DOI: | 10.1557/jmr.2014.35 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6758dd4a37ec0a28ba87693b511d6632 https://doi.org/10.1557/jmr.2014.35 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........6758dd4a37ec0a28ba87693b511d6632 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20445326 08842914 |
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| DOI: | 10.1557/jmr.2014.35 |