Influence of Boiler Pipe Cladding Techniques on their Microstructure and Properties

The aim of this work was to investigate different weld overlay coating technologies applied to steel boiler pipes and their influence on microstructure and properties of the produced overlays. The investigations were carried out on the boiler pipes weld overlaid by an Inconel 625 and cladded at vari...

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Bibliographic Details
Published in:Archives of metallurgy and materials 2013-12, Vol.58 (4), p.1093-1096
Main Authors: Rozmus-Górnikowska, M., Blicharski, M., Kusińsk, J., Kuslnski, L., Marszyck, M.
Format: Article
Language:English
Subjects:
Boilers
Cladding
Cold Metal Transfer (CMT)
Gas tungsten arc welding
GMAW
GTAW
Mechanical properties
Microstructure
Nickel base alloys
Pipe
Welded joints
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Summary:The aim of this work was to investigate different weld overlay coating technologies applied to steel boiler pipes and their influence on microstructure and properties of the produced overlays. The investigations were carried out on the boiler pipes weld overlaid by an Inconel 625 and cladded at various conditions (CMT, GMAW and GTAW). The investigations showed that microstructure and mechanical properties of overlaid pipes depend on cladding technology and the chemical composition of the base material. Celem pracy była ocena wpływ u metody napawania Inconelem 625 rur kotłowych ze stali P235GH i 16Mo3 na mikrostruk- turę i własności podłoża i napoiny. Badania prowadzono na odcinkach rur kotłowych napawanych stopem niklu Inconel 625. Rury zostały dostarczone do Fabryki Kotłów SEFAKO S.A. przez czterech dostawców, stosujących różne metody napawania, a mianowicie CMT, GMAW i GTAW. Badania wykazały, że mikrostruktura i własności mechaniczne rur napawanych istotnie zależą od zastosowanej metody napawania oraz od składu chemicznego materiału podłoża.
ISSN:1733-3490
2300-1909
DOI:10.2478/amm-2013-0131