Bibliographic citations
Corro, R., Ubillús, F. (2024). Efecto del tiempo de revenido en una aleación cobre – 15% aluminio sobre la dureza, resistencia al desgaste, resistencia al impacto y microestructura [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/21061
Corro, R., Ubillús, F. Efecto del tiempo de revenido en una aleación cobre – 15% aluminio sobre la dureza, resistencia al desgaste, resistencia al impacto y microestructura []. PE: Universidad Nacional de Trujillo; 2024. https://hdl.handle.net/20.500.14414/21061
@misc{renati/1044549,
title = "Efecto del tiempo de revenido en una aleación cobre – 15% aluminio sobre la dureza, resistencia al desgaste, resistencia al impacto y microestructura",
author = "Ubillús Maza, Franco Antonio",
publisher = "Universidad Nacional de Trujillo",
year = "2024"
}
This research has studied the tempering time at 400ºC, in the interval of 1 to 10 hours, in the copper-15% aluminum alloy with water quenching from 900ºC and its effect on hardness, wear resistance, impact resistance and microstructure. Specimens according to ASTM E-10 were used for the hardness test, specimens according to ASTM G-77 for wear test and specimens according to ASTM E-23 for impact test. The results show that hardness, wear resistance and impact resistance increase with increasing tempering time up to 4 hours, and for tempering times greater than 4 hours, hardness, wear resistance and impact resistance decrease up to 10 hours of tempering time. In addition, the values obtained for all levels of tempering time in the copper – 15% aluminum alloy are higher than the alloy in the molten state, and according to wear, this alloy at all levels of tempering time under study is very resistant. Microstructurally, the copper-15% aluminum alloy in the molten state consists of eutectoid phase and gamma phase 2, characteristic of a hypereutectoid casting. The alloy with tempering and tempering up to 4 hours consists of acicular plates of alpha phase (α) in a matrix of tempered martensite (β’) and for times greater than 4 hours up to 10 hours consists of alpha (α) and gamma 2 (γ2). With the tempering time of 4 hours, at 400ºC, the copper – 15% aluminum alloy obtained the best results of the properties under study. The results obtained have been contrasted with an analysis of variance with a confidence level of 95%.
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