Efecto del Espesor de la Chapa sobre la Microestructura del Depósito de Recargue mediante Proceso SMAW:

Tamara M.  Ortiz Méndez; Amado  Cruz-Crespo; Juan A. Pozo Morejón

doi:10.22209/rt.v44n3a04

Tamara Ortiz Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba https://orcid.org/0000-0002-1529-8570
Amado Cruz-Crespo Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba https://orcid.org/0000-0003-0227-9853
Juan A. Pozo Morejón Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba https://orcid.org/0000-0002-5916-3520

DOI: https://doi.org/10.22209/rt.v44n3a04

Keywords: hardfacing, thermic process in welding, white cast iron, welding

Abstract

The establishment of hardfacing procedure by welding commonly goes through a previous evaluation of the consumable to be used, by means of the characterization tests of the welds; those results must be reproducible under practical conditions. The plate’s sizes for hardfacing welds depositions determine, together with heat input, the thermal cycle undergone by the weld material; however this aspect is frequently avoided when the samples are elaborated. In the present work was studied the effect of parent metal thickness on the dilution coefficient, the microstructure and the hardness of the hardfacing welds formed by white irons, based on the bodies and heat sources simplified schemes, as well as the mathematical models applied in thermal processes in welding. The results demonstrated the significant effect of plate thickness parameter on the response variables studied and the applicability of theoretical models of thermal processes in welding is also demonstrated in the adequate sizing of the test plates, which allows the reproducibility in practice of the results of the characterization of hardfacing welds.

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Author Biographies

Tamara Ortiz, Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba

Graduated in Mechanical Engineering from the Faculty of Mechanical Engineering of the Central University "Marta Abreu" de las Villas, UCLV (1995); Graduated from Master in Mechanical Engineering (2001). Graduated with a PhD in Technical Sciences, UCLV (2018). Senior Lecturer and Researcher at the Welding Research Center of the Faculty of Mechanical and Industrial Engineering, UCLV, where she has worked for more than 20 years as a professor and researcher, working mainly in the subjects of Welding Technology and Manufacturing Technological Processes in undergraduate , as well as Postgraduate Theory of Welding and Part Reconditioning Processes. He has taught courses in Cuba and abroad. The lines of research in which he participates are: Development of Materials for Welding and Welding Technology

Amado Cruz-Crespo, Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba

Graduated as an engineer in Metallurgy of Ferrous Metals and a Master of Science from the Moscow Institute of Steel and Alloys in 1989. Master in Mechanical Engineering "Mention" Welding, from the Central University "Martha Abreu" of Las Villas (UCLV) in 2001. Doctor of Technical Sciences in the specialty of Metallurgy from the Moa Mining-Metallurgical Institute in 2002. Undergraduate and graduate professor at the Welding Research Center of the Faculty of Mechanical and Industrial Engineering of the UCLV. Member of the Permanent Tribunal of Scientific Degrees of the Republic of Cuba for the Specialty of Metallurgy. He works in the area of Materials Science and Engineering, with an emphasis on Welding Metallurgy, Manufacturing of Welding consumables and Wear.

Juan A. Pozo Morejón, Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba

Graduated in Mechanical Engineering from the Central University “Marta Abreu” of Las Villas (UCLV), in 1990. Graduated as European Welding Engineer and International Welding Engineer, with the Institute of Welding and Quality of Portugal, 2000. Graduated from Master of Science in Mechanical Engineering, UCLV, 1998. Graduated as a Doctor of Technical Sciences, UCLV, 2009. He did Postdoctoral at the Pontifical Catholic University of Rio de Janeiro, 2015. He has worked for 30 years as a professor and researcher, at the Research Center of Welding, Faculty of Mechanical and Industrial Engineering, UCLV. He has served as a teacher of the subjects: Welding Technology, Predictive and Diagnostic Technologies, Resistance of materials. He has taught dozens of courses in Cuba and abroad. The lines of research in which he participates are: welding modeling through finite element analysis, welding technology and calculation of their resistance, inspection methodology and repair of vessels and pipes in service. It has more than 35 published scientific articles. Principal author of a National Award from the Cuban Academy of Sciences and several provincial awards. He holds the decorations: Distinction for Cuban Education, MES, 2015 and José Tey, 2020

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Effect of Plate’s Thickness on the Hardfacing Welds Microstructure using SMAW Process

Effect of Plate’s Thickness on the Hardfacing Welds Microstructure using SMAW Process

Abstract

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Author Biographies

References