Thermodynamic analysis of 6xxx series Al alloys: Phase fraction diagrams
| Autor: | Senlin Cui, In-Ho Jung, Raj K. Mishra |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
lcsh:TN1-997
Microstructural evolution Materials science Aluminum alloy Annealing (metallurgy) Alloy Alloy design Thermodynamic calculation Thermodynamics 02 engineering and technology engineering.material 01 natural sciences Solidification Phase (matter) 0103 physical sciences Materials Chemistry Phase fraction lcsh:Mining engineering. Metallurgy 010302 applied physics Series (mathematics) Diagram Metals and Alloys 021001 nanoscience & nanotechnology Geotechnical Engineering and Engineering Geology Microstructure Mechanics of Materials engineering 0210 nano-technology |
| Zdroj: | Journal of Mining and Metallurgy. Section B: Metallurgy, Vol 54, Iss 1, Pp 119-131 (2018) |
| ISSN: | 2217-7175 1450-5339 |
| Popis: | Microstructural evolution of 6xxx Al alloys during various metallurgical processes was analyzed using accurate thermodynamic database. Phase fractions of all the possible precipitate phases which can form in the as-cast and equilibrium states of the Al-Mg-Si-Cu-Fe-Mn-Cr alloys were calculated over the technically useful composition range. The influence of minor elements such as Cu, Fe, Mn, and Cr on the amount of each type of precipitate in the as-cast and equilibrium conditions were analyzed. Phase fraction diagrams at 500 ?C were mapped in the composition range of 0-1.1 wt.% Mg and 0-0.7 wt.% Si to investigate the as-homogenized microstructure. In addition, phase fraction diagram of Mg2Si at 177 ?C was mapped to understand the microstructure after final annealing of 6xxx Al alloy. Based on the calculated diagrams, the design strategy of 6xxx Al alloy to produce highest strength due to Mg2Si is discussed. |
| Databáze: | OpenAIRE |
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