Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy
Cu-Be alloys are considered high strength alloys when containing 0.2% to 2% of Be per weight, 0.2% to 2.7% of Co per weight, and up to 2.2% of Ni per weight, since they can present an elastic limit higher than 1380 MPa after aging (precipitation hardening), while, without heat treatment, they presen...
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| Format: | Online |
| Language: | eng |
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Universidad Pedagógica y Tecnológica de Colombia
2020
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/11616 |
| _version_ | 1801706088660205568 |
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| author | Higuera-Cobos, Oscar Fabián Moreno-Téllez, Carlos Mauricio Pedraza-Yepes, Cristian Antonio |
| author_facet | Higuera-Cobos, Oscar Fabián Moreno-Téllez, Carlos Mauricio Pedraza-Yepes, Cristian Antonio |
| author_sort | Higuera-Cobos, Oscar Fabián |
| collection | OJS |
| description | Cu-Be alloys are considered high strength alloys when containing 0.2% to 2% of Be per weight, 0.2% to 2.7% of Co per weight, and up to 2.2% of Ni per weight, since they can present an elastic limit higher than 1380 MPa after aging (precipitation hardening), while, without heat treatment, they present an elastic limit between 205 MPa and 690 MPa [1]. Therefore, the complexity of the microstructure is a determining factor in the mechanical behavior of this type of alloys. In this work we analyzed the effect of microstructural variations obtained by cooling with water and with air from three different solubilization temperatures (750 °C, 800 °C and 850 °C) during 1 h, with and without aging, on the abrasive wear behavior of the Cu-1.9Be-0.25(Co+Ni) alloy. The chemical and microstructural characterization was performed by Dispersive Energy X-Ray Fluorescence (EDXRF) and Scanning Electron Microscopy (SEM-EDS), respectively. Abrasive wear behavior was evaluated under the guidelines of ASTM G65-16. Procedure E was used in this study, and the applied parameters were: force against the specimen (130 N), wheel revolutions (1000 rpm), linear abrasion (718 m) and test time (5 min). All tests were done in duplicate, showing a significant improvement in the abrasive wear behavior of the alloy, compared to the material in supply condition (T6). The lowest wear rates (<0.3 g/min) and volumetric loss (<200 mm3) were obtained with the specimens in solubilized condition with water cooling and without aging. The wear coefficients for the specimens with the highest resistance to abrasive wear are less than Ks=7x10-3. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-11616 |
| institution | Revista Facultad de Ingeniería |
| language | eng |
| publishDate | 2020 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-116162021-07-13T02:23:30Z Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy Efecto del ciclo térmico sobre el comportamiento ante el desgaste abrasivo de la aleación Cu-1.9Be-0.25(Co+Ni) Higuera-Cobos, Oscar Fabián Moreno-Téllez, Carlos Mauricio Pedraza-Yepes, Cristian Antonio abrasive wear aging copper-beryllium alloy T6 aleación cobre-berilio desgaste abrasivo envejecido T6 Cu-Be alloys are considered high strength alloys when containing 0.2% to 2% of Be per weight, 0.2% to 2.7% of Co per weight, and up to 2.2% of Ni per weight, since they can present an elastic limit higher than 1380 MPa after aging (precipitation hardening), while, without heat treatment, they present an elastic limit between 205 MPa and 690 MPa [1]. Therefore, the complexity of the microstructure is a determining factor in the mechanical behavior of this type of alloys. In this work we analyzed the effect of microstructural variations obtained by cooling with water and with air from three different solubilization temperatures (750 °C, 800 °C and 850 °C) during 1 h, with and without aging, on the abrasive wear behavior of the Cu-1.9Be-0.25(Co+Ni) alloy. The chemical and microstructural characterization was performed by Dispersive Energy X-Ray Fluorescence (EDXRF) and Scanning Electron Microscopy (SEM-EDS), respectively. Abrasive wear behavior was evaluated under the guidelines of ASTM G65-16. Procedure E was used in this study, and the applied parameters were: force against the specimen (130 N), wheel revolutions (1000 rpm), linear abrasion (718 m) and test time (5 min). All tests were done in duplicate, showing a significant improvement in the abrasive wear behavior of the alloy, compared to the material in supply condition (T6). The lowest wear rates (<0.3 g/min) and volumetric loss (<200 mm3) were obtained with the specimens in solubilized condition with water cooling and without aging. The wear coefficients for the specimens with the highest resistance to abrasive wear are less than Ks=7x10-3. Las aleaciones Cu-Be son consideradas aleaciones de alta resistencia cuando contienen entre 0,2% y 2% en peso de Be, de 0,2% a 2,7% en peso de Co y hasta 2,2% en peso de Ni, ya que pueden presentar un límite elástico superior a 1380 MPa después de envejecido (endurecimiento por precipitación), mientras que, sin tratamiento térmico, presentan un límite elástico entre 205 MPa y 690 MPa [1]. Por lo que la complejidad de la microestructura es un factor determinante en el comportamiento mecánico de este tipo de aleaciones. En este trabajo se analizó el efecto de las variaciones microestructurales obtenidas por enfriamiento en agua y al aire desde tres diferentes temperaturas de solubilización (750 °C, 800 °C y 850 °C) durante 1 h, con y sin envejecido, sobre el comportamiento ante el desgaste abrasivo de la aleación Cu-1.9Be-0.25(Co+Ni). La caracterización química y microestructural se realizó mediante Fluorescencia de Rayos X por Energía Dispersiva (EDXRF) y Microscopía Electrónica de Barrido (SEM-EDS), respectivamente. El comportamiento ante el desgaste abrasivo se evaluó bajo los lineamientos de la norma ASTM G65-16. El procedimiento E fue usado en este estudio. Todas las pruebas se hicieron por duplicado, mostrando una mejora significativa en el comportamiento ante el desgaste abrasivo de la aleación, en comparación con el material en condición de suministro (T6). Las menores velocidades de desgaste (<0.3 g/min) y pérdida volumétrica (<200 mm3) se obtuvieron para las probetas en condición solubilizada con enfriamiento en agua y sin envejecido. Los coeficientes de desgaste para las probetas con la mayor resistencia al desgaste abrasivo son inferiores a Ks=7x10-3. Universidad Pedagógica y Tecnológica de Colombia 2020-08-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/xml https://revistas.uptc.edu.co/index.php/ingenieria/article/view/11616 10.19053/01211129.v29.n54.2020.11616 Revista Facultad de Ingeniería; Vol. 29 No. 54 (2020): Continuos Publication; e11616 Revista Facultad de Ingeniería; Vol. 29 Núm. 54 (2020): Publicación Continua; e11616 2357-5328 0121-1129 eng https://revistas.uptc.edu.co/index.php/ingenieria/article/view/11616/9562 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/11616/10005 Copyright (c) 2020 Oscar Fabián Higuera-Cobos, Ph. D., Carlos Mauricio Moreno-Téllez, Ph. D., Cristian Antonio Pedraza-Yepes, M.Sc. |
| spellingShingle | abrasive wear aging copper-beryllium alloy T6 aleación cobre-berilio desgaste abrasivo envejecido T6 Higuera-Cobos, Oscar Fabián Moreno-Téllez, Carlos Mauricio Pedraza-Yepes, Cristian Antonio Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy |
| title | Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy |
| title_alt | Efecto del ciclo térmico sobre el comportamiento ante el desgaste abrasivo de la aleación Cu-1.9Be-0.25(Co+Ni) |
| title_full | Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy |
| title_fullStr | Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy |
| title_full_unstemmed | Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy |
| title_short | Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy |
| title_sort | effect of thermal cycling on abrasive wear response of cu 1 9be 0 25 co ni alloy |
| topic | abrasive wear aging copper-beryllium alloy T6 aleación cobre-berilio desgaste abrasivo envejecido T6 |
| topic_facet | abrasive wear aging copper-beryllium alloy T6 aleación cobre-berilio desgaste abrasivo envejecido T6 |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/11616 |
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