Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles
High-Chromium White Cast Iron is a material highly used in mining and drilling shafts for oil extraction, due to its high wear resistance. However, because of the austenitic matrix found in the as-cast state, an adequate heat treatment cycle is necessary. This paper studies the effects of different...
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| Format: | Online |
| Language: | eng |
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Universidad Pedagógica y Tecnológica de Colombia
2016
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/4141 |
| _version_ | 1801706072918982656 |
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| author | Higuera-Cobos, Oscar Fabián Dumitru, Florina-Diana Mesa-Grajales, Dairo Hernán |
| author_facet | Higuera-Cobos, Oscar Fabián Dumitru, Florina-Diana Mesa-Grajales, Dairo Hernán |
| author_sort | Higuera-Cobos, Oscar Fabián |
| collection | OJS |
| description | High-Chromium White Cast Iron is a material highly used in mining and drilling shafts for oil extraction, due to its high wear resistance. However, because of the austenitic matrix found in the as-cast state, an adequate heat treatment cycle is necessary. This paper studies the effects of different cooling media after a destabilization treatment on the microstructure, hardening and abrasion resistance behaviors of a hypoeutectic high chromium white cast iron. The results show that although air cooling followed by immersion in CO2 can effectively reduce the retained austenite, this is not enough to transform completely the retained austenite into martensite. The low retained austenite percentages improve bulk hardness, but they decrease the abrasion resistance of the high chromium cast iron. The best combination of hardness and wear resistance was found in the samples cooled in air, due to the percentage of retained austenite and a moderate precipitation of chromium carbide. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-4141 |
| institution | Revista Facultad de Ingeniería |
| language | eng |
| publishDate | 2016 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-41412022-06-15T16:23:38Z Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles Mejoramiento de la resistencia al desgaste abrasivo de la fundición al alto cromo ASTM A-532 a través de ciclos de tratamiento térmico Higuera-Cobos, Oscar Fabián Dumitru, Florina-Diana Mesa-Grajales, Dairo Hernán high chromium white cast iron HCWCI white cast iron chromium carbides hardness wear testing austenite martensite HCWCI fundiciones blancas de hierro fundición al alto cromo carburos de cromo austenita martensita High-Chromium White Cast Iron is a material highly used in mining and drilling shafts for oil extraction, due to its high wear resistance. However, because of the austenitic matrix found in the as-cast state, an adequate heat treatment cycle is necessary. This paper studies the effects of different cooling media after a destabilization treatment on the microstructure, hardening and abrasion resistance behaviors of a hypoeutectic high chromium white cast iron. The results show that although air cooling followed by immersion in CO2 can effectively reduce the retained austenite, this is not enough to transform completely the retained austenite into martensite. The low retained austenite percentages improve bulk hardness, but they decrease the abrasion resistance of the high chromium cast iron. The best combination of hardness and wear resistance was found in the samples cooled in air, due to the percentage of retained austenite and a moderate precipitation of chromium carbide. Las fundiciones blancas de hierro al alto cromo son muy usadas en la minería y en la perforación de pozos petroleros, debido a su alta resistencia al desgaste, sin embargo, debido a que en el estado de colada su microestructura es austenítica, es necesario someterlas a un adecuado ciclo de tratamiento térmico. Este trabajo estudia los efectos de los diferentes medios de enfriamiento después de un tratamiento de desestabilización de la microestructura y, por ende, el efecto del grado de endurecimiento sobre el comportamiento a la abrasión de una fundición blanca al alto cromo hipoeutéctica. Los resultados muestran que a pesar de que el enfriamiento al aire, seguido por inmersión en CO2, puede reducir eficazmente la austenita retenida, esto no es suficiente para transformarla completamente en martensita. El bajo porcentaje de austenita retenida incrementa la dureza del material, pero disminuye la resistencia a la abrasión de las fundiciones al alto cromo. La mejor combinación de dureza y resistencia al desgaste se encontró en las muestras enfriadas al aire, debido al porcentaje de austenita retenida y a una moderada precipitación de carburos de cromo. Universidad Pedagógica y Tecnológica de Colombia 2016-01-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion investigation investigación application/pdf text/html https://revistas.uptc.edu.co/index.php/ingenieria/article/view/4141 10.19053/01211129.4141 Revista Facultad de Ingeniería; Vol. 25 No. 41 (2016); 93-103 Revista Facultad de Ingeniería; Vol. 25 Núm. 41 (2016); 93-103 2357-5328 0121-1129 eng https://revistas.uptc.edu.co/index.php/ingenieria/article/view/4141/3577 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/4141/5045 |
| spellingShingle | high chromium white cast iron HCWCI white cast iron chromium carbides hardness wear testing austenite martensite HCWCI fundiciones blancas de hierro fundición al alto cromo carburos de cromo austenita martensita Higuera-Cobos, Oscar Fabián Dumitru, Florina-Diana Mesa-Grajales, Dairo Hernán Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles |
| title | Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles |
| title_alt | Mejoramiento de la resistencia al desgaste abrasivo de la fundición al alto cromo ASTM A-532 a través de ciclos de tratamiento térmico |
| title_full | Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles |
| title_fullStr | Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles |
| title_full_unstemmed | Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles |
| title_short | Improvement of abrasive wear resistance of the high chromium cast iron ASTM A-532 through thermal treatment cycles |
| title_sort | improvement of abrasive wear resistance of the high chromium cast iron astm a 532 through thermal treatment cycles |
| topic | high chromium white cast iron HCWCI white cast iron chromium carbides hardness wear testing austenite martensite HCWCI fundiciones blancas de hierro fundición al alto cromo carburos de cromo austenita martensita |
| topic_facet | high chromium white cast iron HCWCI white cast iron chromium carbides hardness wear testing austenite martensite HCWCI fundiciones blancas de hierro fundición al alto cromo carburos de cromo austenita martensita |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/4141 |
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