Estudio del comportamiento de los recargues multicapas de depósitos soldados de fundición blanca al cromo // Study of the hard facing weld behavior in deposits of white chromium steels.

Authors

  • R. Collazo-Carceller Departamento de Tecnología de Construcción de Maquinara. Facultad de Ingeniería Mecánica Instituto Superior Politécnico “José Antonio Echeverría” – CUJAE Calle 114 #11901 e/119 y 127. Marianao. La Habana. CP 19390. Cuba. Fax: (537) 260 2267
  • H López-Salinas Departamento de Tecnología de Construcción de Maquinara. Facultad de Ingeniería Mecánica Instituto Superior Politécnico “José Antonio Echeverría” – CUJAE Calle 114 #11901 e/119 y 127. Marianao. La Habana. CP 19390. Cuba. Fax: (537) 260 2267

Abstract

Se determina la influencia de los parámetros Energía introducida (Hi), Número de capas (Nc) y
Ancho del depósito (Ad), en la morfología y el incremento de la resistencia al desgaste abrasivo de
capas depositadas sobre acero 1020 utilizando el electrodo de fundición blanca al cromo UTP
Ledurit – 61. Empleando la microscopia óptica se identificaron y cuantificaron las fases presentes,
analizando su efecto en el desgaste. Siendo determinante la influencia de la inclinación de las
dendritas y su posición con respecto a 90° en el incremento de la resistencia al desgaste abrasivo.
Se caracterizaron los posibles mecanismos de daño superficial provocado por desgaste abrasivo
empleando la microscopia electrónica de barrido. Se propusieron modelos lineales para
correlacionar la influencia de la cantidad, tamaño, dispersión de los carburos y el ángulo de
inclinación de las dendritas, en el incremento de la resistencia al desgaste.


Palabras claves: morfología, desgaste abrasivo, parámetros de soldadura, dendritas, modelos.

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Abstract
The influence of different parameters in layer morphology and abrasion resistance of Fe-Cr-C
electrodes UTP Ledurit – 61 on steel 1020 was studied. Introduced Energy (Hi), Number of Layers
(Nc), and Deposit Width (Ad) were the main parameters considered. The metallographic
identification and quantification of metal phases and the determination of their effect in abrasion
resistance were made with optical microscopy. The abrasive wear test characterized by scanning
electron microscopy, defines a possible mechanism of surface damage. It was found that the angle
formed between a normal line to the surface and the dendrite inclination is directly related with
the increment of wear resistance. Lineal models that correlate wear resistance with quantity, size,
and carbide dispersion and dendrite angle inclination were also developed.


Key words: morphology, abrasive wear, welding parameters, dendrites, modeling

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How to Cite

1.
Collazo-Carceller R, López-Salinas H. Estudio del comportamiento de los recargues multicapas de depósitos soldados de fundición blanca al cromo // Study of the hard facing weld behavior in deposits of white chromium steels. Ing. Mec. [Internet]. 2009 May 1 [cited 2025 Sep. 13];12(2):83-92. Available from: https://ingenieriamecanica.cujae.edu.cu/index.php/revistaim/article/view/70

Issue

Vol. 12 No. 2 (2009): may-august

Section

Original article

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