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Ingeniería Mecánica

versión On-line ISSN 1815-5944

Resumen

FERNANDEZ-COLUMBIE, Tomás; RODRIGUEZ-GONZALEZ, Isnel; CORREA-SUAREZ, Rodney E.  y  ALCANTARA-BORGES, Dayanis. Dissimilar welding joints of the alloy hk - 40 and of the cast iron 24. Ingeniería Mecánica [online]. 2014, vol.17, n.2, pp.98-107. ISSN 1815-5944.

It is paper have the objective to establish the behaviour microstructure of an union welded dissimilar in an alloy HK 40 and the cast iron 24, which is carried out in team that you lend services in the industry of the nickel and that for the characteristics of the union, they arise in the same cracking problem. He was carried out a chemical characterization of both alloys, then for the process of automated got ready a total of nine samples, those that were welding for process shield for electric arch (SMAW), the electrodes lined employees were the E 312 - 16, the UTP 65 and the Castell Xiron 244, being demonstrated in the analysis microstructure and in the diagram of Schaeffler that the disposition of the union with the electrode E 312 - 16 cause the appearance of structure inter dendrite with origin to the white foundry, being more available the union with the electrode UTP 65. He was carried out the micro hardness analysis in each union.

Palabras clave : dissimilar; alloy; cracking; welding; electrodes.

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