Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
MICROSTRUCTURAL AND MECHANICAL CHARACTERIZATIONS OF THE BRONZE ALLOY CUSN8ZN4PB1 COMMONLY USED IN BEARINGS
Submission Author:
Carlos Damião de Souza , SP , Brazil
Co-Authors:
Carlos Damião de Souza, Vinicius Torres dos Santos, Flávia Gonçalves Lobo, Marcio Silva, Caique Movio Pereira de Souza, Rene Oliveira, Vanessa Seriacopi, Wilson Carlos Silva Junior
Presenter: Carlos Damião de Souza
doi://10.26678/ABCM.COBEM2023.COB2023-0356
Abstract
The microstructural and mechanical analyses of the CuSn8Zn4Pb1 alloy contribute to the current parameters for the use of the material, paving the way for new applications with the economic and environmental feasibility of this alloy, also known as SAE620. In general, this material is widely used in the metal-mechanical segment due to characteristics related to wear resistance and corrosion resistance provided by the addition of tin in strategic content from a metallurgical point of view. Another important alloy element is lead which, even in proportions below 1%, provides alloy usability. Also known as "tin bronze", this alloy is commonly used as high-loaded bearings. With the development of this study, value and knowledge are added to the low-lead copper alloy. Based on this context, microstructural and hardness mechanical test characterizations of the alloy were carried out to assess its initial condition, promoting the discussion of possible responses in service. Analysis was carried out given the chemical composition, optical microscopy, and hardness tests, allowing the investigation of the microstructural characteristics, grain size, inclusions and phases, and Brinell hardness. In addition, the composition of the material was evaluated using the method of optical emission spectrometry and X-ray fluorescence spectrometer. The results allow the use of the material CuSn8Zn4Pb1 in future tribological systems tests, presenting important definitions for the stages of the manufacturing process.
Keywords
Copper, microstructural characterization, Failure analysis., copper alloys, Tin bronze
