Microstructural and mechanical characterization of tribological behavior of copper alloy C93900 through testing and failure analysis
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2024
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BRAZIL MRS MEETING, 22nd
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Resumo
Copper and its alloys find wide application across various branches of engineering,
including thermal, electroelectronics, and sugar-alcohol industries. With over 400 known
alloys, those containing lead are particularly noteworthy for their use in sliding bearings.
Lead is insoluble in solid bronze alloys, remaining isolated in the form of small nodules
within the Cu-Sn-Zn ternary matrix. This study is based on an alloy similar to C93900, with
approximate compositions of 75% Cu, 4% Sn, 8.5% Zn, and 12.5% Pb, where lead aids in
reducing adhesion. The aim of this study is to analyze the microstructure and mechanical
characterization, as well as investigate the tribological behavior of this alloy. Microstructure
was analyzed using both Optical and Scanning Electron Microscopy, along with X-ray
Diffraction. Brinell Hardness tests were conducted, resulting in an approximate hardness of
60.28 HB. Additionally, Pin-on-Disc tests were performed under dry and lubricated
conditions to determine friction coefficient and wear rate, revealing minimal wear even
under dry conditions.
Como referenciar
FERNANDES, GABRIELA M.; SERIACOPI, VANESSA; OLIVEIRA, RENE R. de; NETTO, SILVANIA M.; SILVA JUNIOR, WILSON C. da. Microstructural and mechanical characterization of tribological behavior of copper alloy C93900 through testing and failure analysis. In: BRAZIL MRS MEETING, 22nd, September 29 - October 3, 2024, Santos, SP. Abstract... São Carlos, SP: Aptor Software, 2024. p. 309-309. Disponível em: https://repositorio.ipen.br/handle/123456789/48946. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.