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Interrelation of thermal and microstructural solidification parameters and corrosion/tribocorrosion behavior of alloys for tribological, biomedical and solder applications

Abstract

A careful study, permitting correlations between microstructural parameters and mechanical, wear, corrosion and tribocorrosion behavior of metallic alloys to be established, is fundamental in the pre-programming of final properties of as-cast components. A number of alloys systems can be identified havíng alloys with significant potential for biomedical, tribological and solders applications. However, there is a lack of systematic studies in the literature on the evolution of solidification microstructures under transient heat flow conditions and on correlations between the scale of parametric features of these microstructuresand application properties such as mechanical, wear and corrosion resistances. The present study aims to develop a detailed analysis of the microstructural evolution (through thermal analysis, optical and scanning microscopy characterization) of different compositions of Zn-Mg alloys (compositions on both sides of the phase diagram), AI-Bi-(Sn); AI-Sn-(Cu;Si) alloys and eutectic Sn-Cu and Sn-Mg solder alloys directionally solidified under transient conditions. The study also aims to establish growth laws correlating quantitative parameters of the microstructure and solidification thermal parameters. Furthermore, representative specimens of each alloy examined having different microstructural scales will be subjected to corrosion and tribocorrosion tests with a view to determining correlations between microstructure and the corresponding corrosion and tribocorrosion behavior. (AU)

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VEICULO: TITULO (DATA)

Scientific publications (17)
(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.; SILVA, CASSIO A. P.; LIMA, THIAGO S.; CHEUNG, NOE; BRITO, CRYSTOPHER; GARCIA, AMAURI. Tailoring microstructure and microhardness of Zn-1wt.%Mg-(0.5wt.%Mn, 0.5wt.%Ca) alloys by solidification cooling rate. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, v. 31, n. 4, p. 1031-1048, . (14/50502-5, 17/16058-9)
VIDA, TALITA A.; FREITAS, EMMANUELLE S.; CHEUNG, NOE; GARCIA, AMAURI; OSORIO, WISLEI R.. Electrochemical Corrosion Behavior of as-cast Zn-rich Zn-Mg Alloys in a 0.06M NaCl Solution. International Journal of Electrochemical Science, v. 12, n. 6, p. 5264-5283, . (13/23396-7, 14/50502-5)
VERISSIMO, NATHALIA C.; FREITAS, EMMANUELLE S.; CHEUNG, NOE; GARCIA, AMAURI; OSORIO, WISLEI R.. The effects of Zn segregation and microstructure length scale on the corrosion behavior of a directionally solidified Mg-25 wt.%Zn alloy. Journal of Alloys and Compounds, v. 723, p. 649-660, . (13/23396-7, 14/50502-5)
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, . (14/25809-0, 13/23396-7, 12/08494-0, 14/50502-5, 13/15478-3)
BERTELLI, FELIPE; FREITAS, EMMANUELLE S.; CHEUNG, NOE; ARENAS, MARIA A.; CONDE, ANA; DE DAMBORENEA, JUAN; GARCIA, AMAURI. Microstructure, tensile properties and wear resistance correlations on directionally solidified Al-Sn-(Cu; Si) alloys. Journal of Alloys and Compounds, v. 695, p. 3621-3631, . (14/50502-5, 12/16328-2, 13/23396-7, 13/15478-3)
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)
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, 13/23396-7, 12/08494-0, 14/50502-5, 13/15478-3)
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, 14/50502-5, 13/09267-0, 12/08494-0)
VIDA, TALITA A.; BRITO, CRYSTOPHER; LIMA, THIAGO S.; SPINELLI, JOSE E.; CHEUNG, NOE; GARCIA, AMAURI. Near-eutectic Zn-Mg alloys: Interrelations of solidification thermal parameters, microstructure length scale and tensile/corrosion properties. CURRENT APPLIED PHYSICS, v. 19, n. 5, p. 582-598, . (17/16058-9, 14/50502-5)
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, . (13/23396-7, 12/08494-0, 13/25452-1, 14/50502-5, 13/15478-3)
COSTA, THIAGO A.; DIAS, MARCELINO; GOMES, LAERCIO G.; ROCHA, OTAVIO L.; GARCIA, AMAURI. Effect of solution time in T6 heat treatment on microstructure and hardness of a directionally solidified Al-Si-Cu alloy. Journal of Alloys and Compounds, v. 683, p. 485-494, . (13/23396-7, 14/50502-5, 13/09267-0)
VERISSIMO, NATHALIA C.; BRITO, CRYSTOPHER; AFONSO, CONRADO R.; SPINELLI, JOSE E.; CHEUNG, NOE; GARCIA, AMAURI. Microstructure characterization of a directionally solidified Mg-12wt.%Zn alloy: Equiaxed dendrites, eutectic mixture and type/morphology of intermetallics. Materials Chemistry and Physics, v. 204, p. 105-131, . (14/50502-5)
REYES, RODRIGO V.; KAKITANI, RAFAEL; COSTA, THIAGO A.; SPINELLI, JOSE E.; CHEUNG, NOE; GARCIA, AMAURI. Cooling thermal parameters, microstructural spacing and mechanical properties in a directionally solidified hypereutectic Al-Si alloy. PHILOSOPHICAL MAGAZINE LETTERS, v. 96, n. 6, p. 228-237, . (14/50502-5, 15/11863-5)
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, 14/50502-5, 12/08494-0)
VIDA, TALITA A.; CONDE, ANA; FREITAS, EMMANUELLE S.; ARENAS, MARIA A.; CHEUNG, NOE; BRITO, CRYSTOPHER; DE DAMBORENEA, JUAN; GARCIA, AMAURI. Directionally solidified dilute Zn-Mg alloys: Correlation between microstructure and corrosion properties. Journal of Alloys and Compounds, v. 723, p. 536-547, . (13/23396-7, 14/50502-5, 13/15478-3)
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, . (14/25809-0, 13/23396-7, 12/16328-2, 12/08494-0, 14/50502-5)
COSTA, THIAGO A.; DIAS, MARCELINO; FREITAS, EMMANUELLE S.; CASTELETTI, LUIZ C.; GARCIA, AMAURI. The effect of microstructure length scale on dry sliding wear behaviour of monotectic Al-Bi-Sn alloys. Journal of Alloys and Compounds, v. 689, p. 767-776, . (13/23396-7, 14/50502-5, 13/15478-3)

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