Artículos de revistas
The interrelation between mechanical properties, corrosion resistance and microstructure of Pb-Sn casting alloys for lead-acid battery components
Registro en:
Journal Of Power Sources. Elsevier Science Bv, v. 195, n. 2, n. 621, n. 630, 2010.
0378-7753
WOS:000272883300037
10.1016/j.jpowsour.2009.08.011
Autor
Peixoto, LC
Osorio, WR
Garcia, A
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) It is well known that there is a strong influence of thermal processing variables on the solidi. cation structure and as a direct consequence on the casting final properties. The morphological microstructural parameters such as grain size and cellular or dendritic spacings will depend on the heat transfer conditions imposed by the metal/mould system. There is a need to improve the understanding of the interrelation between the microstructure, mechanical properties and corrosion resistance of dilute Pb-Sn casting alloys which are widely used in the manufacture of battery components. The present study has established correlations between cellular microstructure, ultimate tensile strength and corrosion resistance of Pb-1 wt% Sn and Pb-2.5 wt% Sn alloys by providing a combined plot of these properties as a function of cell spacing. It was found that a compromise between good corrosion resistance and good mechanical properties can be attained by choosing an appropriate cell spacing range. (C) 2009 Elsevier B. V. All rights reserved. 195 2 621 630 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) FAEPEX-UNICAMP Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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