Original scientific paper

Structural analysis of sheet nickel welded joints

M. Radoń ; Department of Casting and Welding, Rzeszow University of Technology, Rzeszow, Poland
Z. A. Opiekun ; Department of Casting and Welding, Rzeszow University of Technology, Rzeszow, Poland
A. Dec ; Department of Casting and Welding, Rzeszow University of Technology, Rzeszow, Poland

Abstract

The paper presents an analysis of structure nickel sheet welded joints made by applying Gas Tungsten Arc Welding (GTAW) method. Based on results of metallographic examination, HV5 hardness measurements, Energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analysis of the welds it was found that the joints were characterized with a three-zone structure with large columnar dendrites in the welds. Columnar dendrites show a mosaic substructure with uniformly distributed carbides of M3C type rich in nickel.

Keywords

nickel; sheet; GTAW welding; X-ray analyses; welded joint structure

Hrčak ID:

255997

URI

https://hrcak.srce.hr/255997

Publication date:

1.7.2021.

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