Characterization of mechanical properties and micro-structural features of welds used for rebuilding shafts

Authors

  • César Cerón Bolaños Universidad del Valle
  • John Sandro Rivas Murillo Universidad del Valle
  • John Jairo Coronado Marín Universidad del Valle

Keywords:

sugar mill shaft, rebuild by welding, mechanical properties of welds, micro-structural features of welds

Abstract


Mechanical properties and micro-structural features of welded metal and heataffected zone (HAZ) of three welding processes used to rebuild worn shafts in sugar cane mills were analyzed. For two welding processes the following characteristics were observed in the HAZ: presence of ferrite in the grain boundary, higher grain growth and Widmanstaetten structure, features that reduce steel toughness. A weld ranking was established from mechanical properties obtained by both tension and Charpy impact tests.

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Author Biographies

César Cerón Bolaños, Universidad del Valle

Grupo de Investigación en Mejoramiento Industrial. Escuela Ingeniería Mecánica.

John Sandro Rivas Murillo, Universidad del Valle

Grupo de Investigación en Mejoramiento Industrial. Escuela Ingeniería Mecánica.

John Jairo Coronado Marín, Universidad del Valle

Grupo de Investigación en Mejoramiento Industrial. Escuela Ingeniería Mecánica.

References

E. Hugot. Handbook of sugar cane engineering. Elsevier Publishing Company. 1960.

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J. Coronado, S. Rivas, A. Gómez. “Estudio tribológico en chumaceras y ejes de molino de caña de azúcar” Dyna. No 144. 2004. pp. 1-8.

J. Rivas, W. Mora, A. Gómez, J. Coronado, C. Velez, “Wear on Top Roll Shaft Journals”. En: International Society of Sugar Cane Technologists. Guatemala. 2005. pp. 295-302.

ASTM E 8-90a. Standard Test Method for Tension Testing of Metallic Materials. 1984. pp. 130-145.

ASTM E 23-91. Standard Test Method for Notched Bar Impact Testing of Metallic Materials. 1984. pp. 197-212.

H. Lee “Fracture resistance of steel weld join under fatigue loading”. En: Engineering Fracture Mechanics. Vol. 66. 2000. pp. 403-419.

V. Tvergaard “Analysis of the Charpy V notch test for welds”. En: Fracture Mechanics Vol. 65. 2000. pp. 627-643.

M. Solari. Metalurgia del metal de soldadura. Comisión Nacional de Energía Atómica. Buenos Aires, República de Argentina. 1986. p. 24.

D. Seferian Metalurgia de la Soldadura. Edición Revolucionaria. La Habana, Cuba.1979. p. 14.

Published

2006-07-29

How to Cite

Cerón Bolaños, C. ., Rivas Murillo, J. S., & Coronado Marín, J. J. . (2006). Characterization of mechanical properties and micro-structural features of welds used for rebuilding shafts. Revista Facultad De Ingeniería Universidad De Antioquia, (36), 33–43. Retrieved from https://revistas.udea.edu.co/index.php/ingenieria/article/view/343243