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1020 AISI-SAE steel Austenitic Nitrocarburising with alcohol and triethanolamine
Nitrocarburación austenítica del acero AISI-SAE 1020 con alcoholes y trietanolamina
DOI:
https://doi.org/10.15446/ing.investig.v25n1.14615Keywords:
thermal treatment, surface treatment (en)tratamientos térmicos, tratamientos de superficie (es)
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The present work shows AISI-SAE 1020 steel’s nitrocarbide layer’s microstructure and micro-hardness profile following 4 hours at 700°C using methanol, isopropanol and triethanolamine. The steel was then hardened by quenching it in water and then tempered at 350°C for 1 hour. Its surface had been partially oxidized by heating it at 400°C for 1 hour. An example is given of other researchers analyzing microstructure and properties in steel having 0.5% C, using endothermic gas and different amounts of ammoniac.
En el presente trabajo se pueden observar la microestructura y el perfil de microdurezas de la capa nitrocarburada a 700°C durante 4 horas de un acero AISI-SAE 1020, utilizando metanol, isopropanol y trietanolamina, el cual fue sometido posteriormente a temple en agua y revenido a 350°C durante 1 hora. El acero fue calentado inicialmente a 400°C durante 1 hora para oxidar parcialmente la superficie. A manera de ejemplo, se presenta previamente un análisis de la microestructura y propiedades obtenidas por otros investigadores en un acero con 0,5% C, utilizando gas endotérmico y diferentes cantidades de amoníaco.
References
Bell T.; Kinali L.; Munstermann G., Physical Metallurgy Aspects of the Austenitic nitrocarburizing Process, Heat Treating of Metals, 1987, 2, pp. 47-51.
M. Kostelitz, C. Pavee, A. Gimier, Heat Treating Processes with Nitrogen and Methanol Based Atmospheres, J. Heat Treating, Vol 2, No. 1, 1981. DOI: https://doi.org/10.1007/BF02833072
Castro A., Influencia de la nitrocarburación en las propiedades superficiales de los aceros no aleados, 1er, Encuentro Nacional de Ciencia y Tecnología de Superficies, Acabados y Recubrimientos, Simedua, 1995.
Kiessling L., The Constitution of Hardened Surfaces Produced by Low-Temperature Carbonitriding (Austenitic Nitrocarburizing), Heat Treatment of Metals, 1978,4, pp. 95-99.
Bell T., Nitrocementación Ferrítica, Conferencias del Programa Multinacional de Metalurgia de la OEA, Argentina, 1976.
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Copyright (c) 2005 Álvaro Castro P, Carlos Bohórquez
This work is licensed under a Creative Commons Attribution 4.0 International License.
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