Nodule count effect on microstructure and mechanical properties of hypo-eutectic ADI alloyed with nickel
Samples of ductile iron alloyed with 0.88 % Ni with a nodule count of 606, 523, and 290 nod/mm2 were obtained from sand cast plates of different thickness in the range from 8.46 to 25.4 mm. The effect of the nodule count was evaluated during the austempering process held at 285°C and austempering ti...
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University of Belgrade, Technical Faculty, Bor
2021-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100009C.pdf |
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| author | Colin-García E. Cruz-Ramírez A. Romero-Serrano J.A. Sánchez-Alvarado R.G. Gutiérrez-Pérez V.H. Reyes-Castellanos G. |
| author_facet | Colin-García E. Cruz-Ramírez A. Romero-Serrano J.A. Sánchez-Alvarado R.G. Gutiérrez-Pérez V.H. Reyes-Castellanos G. |
| author_sort | Colin-García E. |
| collection | DOAJ |
| description | Samples of ductile iron alloyed with 0.88 % Ni with a nodule count of 606, 523, and 290 nod/mm2 were obtained from sand cast plates of different thickness in the range from 8.46 to 25.4 mm. The effect of the nodule count was evaluated during the austempering process held at 285°C and austempering times of 15, 30, 45, 60, 70, and 90 min. The volume fraction of high carbon austenite increased when the nodule count increased, however, the carbon content of the high carbon austenite kept almost constant. The process window was narrow, requiring a lower austempering time when the nodule count increased. The combination of a higher nodule count and low austempering temperature allowed obtaining a fine ausferritic microstructure which led to higher Brinell hardness and tensile strength. The process window was determined by XRD measurements and it was in good agreement with the microstructural and hardness evolution as the austempering time increased. |
| format | Article |
| id | doaj-art-0d8391547a54441cba2fe91ffb521dfc |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-0d8391547a54441cba2fe91ffb521dfc2025-02-02T09:58:17ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752021-01-0157111512410.2298/JMMB200403009C1450-53392100009CNodule count effect on microstructure and mechanical properties of hypo-eutectic ADI alloyed with nickelColin-García E.0Cruz-Ramírez A.1Romero-Serrano J.A.2Sánchez-Alvarado R.G.3Gutiérrez-Pérez V.H.4Reyes-Castellanos G.5Instituto Politécnico Nacional - ESIQIE, Departamento de Ingeniería en Metalurgia y Materiales, Ciudad de México, MéxicoInstituto Politécnico Nacional - ESIQIE, Departamento de Ingeniería en Metalurgia y Materiales, Ciudad de México, MéxicoInstituto Politécnico Nacional - ESIQIE, Departamento de Ingeniería en Metalurgia y Materiales, Ciudad de México, MéxicoInstituto Politécnico Nacional - ESIQIE, Departamento de Ingeniería en Metalurgia y Materiales, Ciudad de México, MéxicoInstituto Politécnico Nacional - UPIIZ, Departamento de Formación Específica, Zacatecas, MéxicoInstituto Politécnico Nacional - ESIQIE, Departamento de Ingeniería en Metalurgia y Materiales, Ciudad de México, MéxicoSamples of ductile iron alloyed with 0.88 % Ni with a nodule count of 606, 523, and 290 nod/mm2 were obtained from sand cast plates of different thickness in the range from 8.46 to 25.4 mm. The effect of the nodule count was evaluated during the austempering process held at 285°C and austempering times of 15, 30, 45, 60, 70, and 90 min. The volume fraction of high carbon austenite increased when the nodule count increased, however, the carbon content of the high carbon austenite kept almost constant. The process window was narrow, requiring a lower austempering time when the nodule count increased. The combination of a higher nodule count and low austempering temperature allowed obtaining a fine ausferritic microstructure which led to higher Brinell hardness and tensile strength. The process window was determined by XRD measurements and it was in good agreement with the microstructural and hardness evolution as the austempering time increased.http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100009C.pdfductile ironnodule countadiprocess windownickel |
| spellingShingle | Colin-García E. Cruz-Ramírez A. Romero-Serrano J.A. Sánchez-Alvarado R.G. Gutiérrez-Pérez V.H. Reyes-Castellanos G. Nodule count effect on microstructure and mechanical properties of hypo-eutectic ADI alloyed with nickel Journal of Mining and Metallurgy. Section B: Metallurgy ductile iron nodule count adi process window nickel |
| title | Nodule count effect on microstructure and mechanical properties of hypo-eutectic ADI alloyed with nickel |
| title_full | Nodule count effect on microstructure and mechanical properties of hypo-eutectic ADI alloyed with nickel |
| title_fullStr | Nodule count effect on microstructure and mechanical properties of hypo-eutectic ADI alloyed with nickel |
| title_full_unstemmed | Nodule count effect on microstructure and mechanical properties of hypo-eutectic ADI alloyed with nickel |
| title_short | Nodule count effect on microstructure and mechanical properties of hypo-eutectic ADI alloyed with nickel |
| title_sort | nodule count effect on microstructure and mechanical properties of hypo eutectic adi alloyed with nickel |
| topic | ductile iron nodule count adi process window nickel |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100009C.pdf |
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