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Thermal and Microstructural Parameters in the Transient Solidification of Al-Mg and Al-Mg-Si Alloys and Correlation with Mechanical and Corrosion Resistances

Grant number: 12/08494-0
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): August 01, 2012
Effective date (End): February 29, 2016
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Transformation Metallurgy
Principal researcher:Amauri Garcia
Grantee:Crystopher Cardoso de Brito
Home Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated scholarship(s):14/25809-0 - Thermal and microstructural parameters in the transient solidification of Al-Mg and Al-Mg-Si alloys and correlation with mechanical and corrosion resistances, BE.EP.DR

Abstract

AbstractThe mechanical characteristics (strength under static and dynamic loading; wear resistance) and chemical characteristics (corrosion resistance) of as solidified metallic components depend on the microstructural arrangement, i.e. grain size and cellular and dendritic spacings; non-homogeneity of chemical composition; size, morphology and distribution of inclusions; porosity, etc. Additionally to the barriers to slip formed by the grain boundaries there are also obstacles between the cellular and dendritic arms. The development of correlations between the as-solidified microstructure and the corresponding properties can be a complex task, which depends on a careful experimental development with a view to determining accurate solidification thermal parameters. The present study aims to develop of a theoretical/ experimental analysis dealing with the effect of transient thermal parameters in the solidification of Al-Mg and Al-Mg-Si alloys on the microstructure development and on macrosegregation profiles. Correlations between microstructural parameters and mechanical and corrosion resistances will be established with a view to permitting solidification operational conditions to be pre-programmed in order to allow the casting to attain a determined level of final properties. The experimental sequence will be developed as follows: vertical upward and downward directional solidification of Al-Mg and Al-Mg-Si alloys; determination of solidification thermal parameters; development of experimental dendritic growth laws; determination of macrosegregation profiles along the castings lengths; assessment of mechanical and corrosion properties as a function of the dendritic arm spacing and/or other quantitative aspect of phases forming the as-solidified microstructure.

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Scientific publications (20)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
VIDA, TALITA A.; FREITAS, EMMANUELLE S.; BRITO, CRYSTOPHER; CHEUNG, NOE; ARENAS, MARIA A.; CONDE, ANA; DE DAMBORENEA, JUAN; GARCIA, AMAURI. Thermal Parameters and Microstructural Development in Directionally Solidified Zn-Rich Zn-Mg Alloys. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, v. 47A, n. 6, p. 3052-3064, . (13/15478-3, 13/25452-1, 12/08494-0, 14/50502-5, 13/23396-7)
COSTA, THIAGO A.; FREITAS, EMMANUELLE S.; DIAS, MARCELINO; BRITO, CRYSTOPHER; CHEUNG, NOE; GARCIA, AMAURI. Monotectic Al-Bi-Sn alloys directionally solidified: Effects of Bi content, growth rate and cooling rate on the microstructural evolution and hardness. Journal of Alloys and Compounds, v. 653, p. 243-254, . (13/23396-7, 12/08494-0, 13/09267-0, 14/50502-5)
BERTELLI, FELIPE; BRITO, CRYSTOPHER; FERREIRA, IVALDO L.; REINHART, GUILLAUME; NGUYEN-THI, HENRI; MANGELINCK-NOEL, NATHALIE; CHEUNG, NOE; GARCIA, AMAURI. Cooling thermal parameters, microstructure, segregation and hardness in directionally solidified Al-Sn-(Si;Cu) alloys. MATERIALS & DESIGN, v. 72, p. 31-42, . (12/08494-0, 12/16328-2, 13/23396-7, 14/21893-6)
VERISSIMO, NATHALIA C.; BRITO, CRYSTOPHER; SANTOS, WASHINGTON L. R.; CHEUNG, NOE; SPINELLI, JOSE E.; GARCIA, AMAURI. Interconnection of Zn content, macrosegregation, dendritic growth, nature of intermetallics and hardness in directionally solidified Mg-Zn alloys. Journal of Alloys and Compounds, v. 662, p. 1-10, . (13/23396-7, 12/08494-0, 14/50502-5)
DUARTE, ROBERTO N.; FARIA, JONAS D.; BRITO, CRYSTOPHER; VERISSIMO, NATHALIA C.; CHEUNG, NOE; GARCIA, AMAURI. Length scale of the dendritic microstructure affecting tensile properties of Al-(Ag)-(Cu) alloys. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, v. 30, n. 3, . (13/23396-7, 12/08494-0)
JONAS DIAS FARIA; CRYSTOPHER CARDOSO DE BRITO; THIAGO ANTÔNIO PAIXÃO DE SOUSA COSTA; NATHÁLIA CAROLINA VERISSIMO; WASHINGTON LUIS REIS SANTOS; JOSÉ MARCELINO DA SILVA DIAS FILHO; AMAURI GARCIA; NOÉ CHEUNG. Influência na microestrutura e na microdureza decorrente da adição de 4%Ag na liga Al-4%Cu solidificada unidirecionalmente. MATERIA-RIO DE JANEIRO, v. 20, n. 4, p. 992-1007, . (13/09267-0, 13/23396-7, 12/08494-0)
BRITO, CRYSTOPHER; REINHART, GUILLAUME; NGUYEN-THI, HENRI; MANGELINCK-NOEL, NATHALIE; CHEUNG, NOE; SPINELLI, JOSE E.; GARCIA, AMAURI. High cooling rate cells, dendrites, microstructural spacings and microhardness in a directionally solidified Al-Mg-Si alloy. Journal of Alloys and Compounds, v. 636, p. 145-149, . (14/25809-0, 13/23396-7, 12/08494-0)
DIAS, MARCELINO; BRITO, CRYSTOPHER; BERTELLI, FELIPE; ROCHA, OTAVIO L.; GARCIA, AMAURI. Interconnection of thermal parameters, microstructure, macrosegregation and microhardness of unidirectionally solidified Zn-rich Zn-Ag peritectic alloys. MATERIALS & DESIGN, v. 63, p. 848-855, . (12/08494-0, 12/16328-2, 13/09267-0)
DIAS, MARCELINO; BRITO, CRYSTOPHER; BERTELLI, FELIPE; GARCIA, AMAURI. Cellular growth of single-phase Zn-Ag alloys unidirectionally solidified. Materials Chemistry and Physics, v. 143, n. 3, p. 895-899, . (12/08494-0, 12/16328-2, 13/09267-0)
BRITO, C.; BERTELLI, F.; CASTANHO, M. A. P.; GOULART, P. R.; CHEUNG, N.; SPINELLI, J. E.; GARCIA, A.. Upward and downward unsteady-state directional solidification of a hypoeutectic Al-3wt.% Mg alloy. CIENCIA & TECNOLOGIA DOS MATERIAIS, v. 29, n. 1, p. E65-E70, . (12/08494-0, 14/50502-5, 12/16328-2, 13/23396-7, 14/25809-0)
SANTOS, WASHINGTON L. R.; BRITO, CRYSTOPHER; BERTELLI, FELIPE; SPINELLI, JOSE E.; GARCIA, AMAURI. Microstructural development of hypoeutectic Zn-(10-40)wt%Sn solder alloys and impacts of interphase spacing and macrosegregation pattern on hardness. Journal of Alloys and Compounds, v. 647, p. 989-996, . (13/13030-5, 12/08494-0, 12/16328-2)
TALITA ALMEIDA VIDA; THIAGO SOARES; RUDIMYLLA SILVA SEPTIMIO; CRYSTOPHER CARDOSO BRITO; NOÉ CHEUNG; AMAURI GARCIA. Effects of Macrosegregation and Microstructure on the Corrosion Resistance and Hardness of a Directionally Solidified Zn-5.0wt.%Mg Alloy. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 22, . (13/25452-1, 13/15478-3, 12/08494-0, 14/50502-5, 13/23396-7)
CASTANHO, M. A. P.; GOULART, P. R.; BRITO, C.; SPINELLI, J. E.; CHEUNG, N.; GARCIA, A.. Steady and unsteady state peritectic solidification. MATERIALS SCIENCE AND TECHNOLOGY, v. 31, n. 1, p. 105-114, . (12/08494-0)
BRITO, CRYSTOPHER; COSTA, THIAGO A.; VIDA, TALITA A.; BERTELLI, FELIPE; CHEUNG, NOE; SPINELLI, JOSE EDUARDO; GARCIA, AMAURI. Characterization of Dendritic Microstructure, Intermetallic Phases, and Hardness of Directionally Solidified Al-Mg and Al-Mg-Si Alloys. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, v. 46A, n. 8, p. 3342-3355, . (12/08494-0, 13/23396-7, 12/16328-2)
OSORIO, WISLEI R.; CANTE, MANUEL V.; BRITO, CRYSTOPHER; FREITAS, EMMANUELLE S.; GARCIA, AMAURI. Electrochemical Behavior of an Al-Fe-Ni Alloy Affected by Nano-Sized Intermetallic Particles. CORROSION, v. 71, n. 4, p. 510-522, . (13/15478-3, 13/23396-7, 12/08494-0)
SANTOS, WASHINGTON L. R.; BRITO, CRYSTOPHER; QUARESMA, JOSE M. V.; SPINELLI, JOSE E.; GARCIA, AMAURI. Plate-like cell growth during directional solidification of a Zn-20wt%Sn high-temperature lead-free solder alloy. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v. 182, p. 29-36, . (12/08494-0)
VIDA, TALITA ALMEIDA; SOARES, THIAGO; SEPTIMIO, RUDIMYLLA SILVA; BRITO, CRYSTOPHER CARDOSO; CHEUNG, NOE; GARCIA, AMAURI. Effects of Macrosegregation and Microstructure on the Corrosion Resistance and Hardness of a Directionally Solidified Zn-5.0wt.% Mg Alloy. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 22, n. 1, . (13/25452-1, 12/08494-0, 13/15478-3, 13/23396-7, 14/50502-5)
DA SILVA, CASSIO; SOARES, THIAGO; CHEUNG, NOE; GARCIA, AMAURI; REIS, DANIELI A. P.; BRITO, CRYSTOPHER. Dendritic Spacing and Macrosegregation Affecting Microhardness of an Al-Si-Mg Alloy Solidified Under Unsteady State Conditions. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 22, n. 6, 1, . (12/08494-0, 14/25809-0, 13/23396-7)
BRITO, CRYSTOPHER; VIDA, TALITA; FREITAS, EMMANUELLE; CHEUNG, NOE; SPINELLI, JOSE EDUARDO; GARCIA, AMAURI. Cellular/dendritic arrays and intermetallic phases affecting corrosion and mechanical resistances of an Al-Mg-Si alloy. Journal of Alloys and Compounds, v. 673, p. 220-230, . (13/15478-3, 12/08494-0, 14/50502-5, 13/23396-7, 14/25809-0)
BERTELLI, FELIPE; FARIA, JONAS D.; GOULART, PEDRO R.; BRITO, CRYSTOPHER; CHEUNG, NOE; GARCIA, AMAURI. Numerical and experimental modelling of two-dimensional unsteady heat transfer during inward solidification of square billets. APPLIED THERMAL ENGINEERING, v. 96, p. 454-462, . (12/08494-0, 13/23396-7, 12/16328-2)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
BRITO, Crystopher Cardoso de. Thermal and microstructural parameters in the transient solidification of Al-Mg and Al-Mg-Si alloys and correlation with mechanical and corrosion resistances. 2016. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica Campinas, SP.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.