Microstructural Improvement of Eutectic Al + Mg2Si Phases on Al–Zn–Si–Mg Cast Alloy with TiB2 Particles Additions
| Autor: | Yong Ho Park, Byung Joo Kim, Young-Cheol Lee, Jihoon Hwang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science Alloy Intermetallic Nucleation chemistry.chemical_element Crystal structure engineering.material phase modification Aluminium Phase (matter) General Materials Science eutectic Al + Mg2Si phases Eutectic system Polarized light microscopy Microscopy QC120-168.85 QH201-278.5 Engineering (General). Civil engineering (General) TK1-9971 Chemical engineering chemistry Descriptive and experimental mechanics engineering Electrical engineering. Electronics. Nuclear engineering aluminum alloy TA1-2040 intermetallic compound |
| Zdroj: | Materials, Vol 14, Iss 2902, p 2902 (2021) Materials Volume 14 Issue 11 |
| ISSN: | 1996-1944 |
| Popis: | In this study, the effects of adding TiB2 particles to eutectic Al + Mg2Si phases in aluminum alloys were analyzed. The eutectic Al + Mg2Si phases were modified effectively when a large amount of TiB2 was added, and changes in the shape, size, and distribution of the eutectic Al + Mg2Si phases were confirmed using a polarizing microscope and FE-SEM. The crystal structure of the TiB2 particles and Mg2Si phases were analyzed using HR-TEM, and the analysis confirmed that the TiB2 particles can act as heterogeneous nucleation sites. This paper intends to clarify the principle of phase modification of the eutectic Al + Mg2Si phases by TiB2 particles and proposes a new mechanism to improve Mg2Si phase modification when TiB2 particles are added. |
| Databáze: | OpenAIRE |
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