A comparison of experimental time-secondary dendritic spacing and coarsening models for Al-Si-Cu alloys

Author(s)

Donadoni, Bruno ^[1] ; de Gouveia, Guilherme Lisboa ^[1] ; Garcia, Amauri ^[2] ; Spinelli, Jose Eduardo ^[3]

Affiliation

^[1] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Estadual Campinas, Dept Mfg & Mat Engn, UNICAMP, BR-13083860 Campinas, SP - Brazil

^[3] Fed Univ Sao Carlos UFSCar, Dept Mat Engn, BR-13565905 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: JOURNAL OF MANUFACTURING PROCESSES; v. 54, p. 14-18, JUN 2020.
• Web of Science Citations: 0

Abstract

Most of the secondary dendrite arm spacing (lambda(2)) growth models existing in the literature deal with predictions for binary aluminum (Al) alloys. Only two solutions are available to estimate lambda(2) for chemistries of major alloying elements in Al alloys, such as copper (Cu) and Silicon (Si). The coarsening models developed by Rappaz-Boettinger and Tiryakioglu were employed in this investigation. The multicomponent models enabled very distinct matches with the experimental data of Al-9 and 11 wt.% Si-3.0 wt.% Cu alloys. (AU)

• FAPESP's process: 19/01432-8 - Microstructure development, corrosion and mechanical resistances of Mg-Si and Mg-Si-(x) alloys for biomedical application
• Grantee: Guilherme Lisboa de Gouveia
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 17/12741-6 - Application of experimental solidification techniques, characterization of microstructure and properties in the evaluation of eutectic and hypereutectic Al-base and Zn-base alloys
• Grantee: José Eduardo Spinelli
• Support Opportunities: Regular Research Grants