Microstructural transformations in a nodular foundation subject to austenic electrode welding process
Keywords:
nodular cast iron, microstructure, retained austenite, nodular graphite.Abstract
The welded joint obtained with two electrodes (E 316 L-16 and UTP 65) was experimented in a nodular cast iron in order to establish the phase transformations that arise in the different zones. Samples were prepared with 12 mm of thickness and V shaped edges to 60°. For each electrode, joints were made with three welding passes. It was noticed that there is a tendency to cracking in the molten zone and at the interface with the formation of martensite and austenite when using the E 316 L - 16 electrodes; on the other hand, the deposit obtained with the UTP 65 electrode guarantees a better metallurgical continuity joint in the three zones by the dendritic ferrite and the austenite formation.Downloads
References
Agüera, F.; Ansaldi, A.; Reynoso, A.; Fierro, V. y Ayllón, V. 2006: experiencias de soldadura de ADI (Austempered Ductile Iron) con electrodos básicos base hierro de bajo contenido de hidrógeno y mínimo aporte calórico. Anales CONAMET/ SAM. Sexto Congreso de Metalurgia. Santiago de Chile.
Agüera, F.; Ansaldi, A.; Reynoso, A.; Fierro, V.; Villar, N. A.; Aquino, D. y Ayllón, E. S. 2008: Análisis de soldadura de fundiciones “ADI”, con electrodos de Fe-Ni. Anales CONAMET/SAM 2008.
ASTM A-536 1987: Clasificación del grafito en hierro gris.
ASTM E3-95. 2001: Standard Practice for Preparation of Metallographic Specimens. ASTM International, West Conshohocken, PA.
AWS-A5–28-79: Specification for Low Alloy Steel Filler Metals for Gas Shielded Metal Arc Welding (2005). Disponible en: http://www.wballoys.co.uk/TIGwire/data-sheets/WB6541E.pdf [Accedido: 22 Feb. 2018].
Baydogan, H. y Secking, I. 2009: Successive Boronizing and Austempering for GGG-40 Grade Ductile Iron. Journal of Iron and Steel Research International, 16(2): 50-54.
Collini, L.; Nicoletto, G. y Conečnák, R. 2008: Microstructure and mechanical properties of pearlitic gray cast iron. Materials Science and Engineering A, 488(124): 529-539.
Dardati, P.; Celentano, D.; Godoy, L.; Chiarella, A. y Schulz, B. 2009: Analysis of ductile cast iron solidification: numerical simulation and experimental validation. International Journal of Cast Metals Research, 22(5): 390-400.
DIN 8556 E 18-8 Mn R 26, 2013: high alloyed, special purpose electrodes. Disponible en: http://www.hbt-weld.cz/wp-content/uploads/Vysoce-legovan%C3%A9-speci%C3%A1ln%C3%AD-odd%C3%ADl-J.pdf [Accedido: 28 Marzo. 2018].
Fernández-Columbié, T.; Rodríguez-González, I.; Correa-Suárez, R. y Alcántara-Borges, D. 2014: Junta de soldadura disímil de la aleación HK-40 y del hierro fundido 24. Ingeniería Mecánica, 17(2): 98-107.
Marulanda, J.; Zapata, A. y Grajales, D. 2007: Recuperación y soldabilidad de piezas de fundición de hierro. Scientia et Techica, 37(11): 237-242.
Pouranvari, M. 2010: On the weldability of grey cast iron using nickel based filler metal. Materials & Design, 31(7): 3253-3258.
Yalcin, Y. y Yazici, A. 2007: The Effect of Boro-tempering Heat treatment on the Properties of Ductile Cast Iron. Kovove Materials, 45(3): 51-57.
Published
How to Cite
Issue
Section
- Authors retain copyright and guaranteeing the right magazine to be the first publication of the work as licensed under a Creative Commons Attribution-NonCommercial that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors may establish separate supplemental agreements for the exclusive distribution version of the work published in the journal (eg, place it in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are allowed and recommended to disseminate their work through the Internet (e.g., in institutional telematic archives or on their websites) before and during the submission process, which can produce interesting exchanges and increase citations of the published work. (See The effect of open access)
