Influence of fuel ashes on corrosion of surface coatings cladded by CMT method

The aim of the present research was to investigate the influence of different biomasses and sewage sludge ash (at 650°C for 1000 h and 2000 h, respectively) on the surface of weld cladded (Cold Metal Transfer technique, CMT) stainless steels 309 and 310. The biomass ashes were rich in K 2 O, CaO, Si...

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Bibliographic Details
Published in:Energy sources. Part A, Recovery, utilization, and environmental effects Recovery, utilization, and environmental effects, 2019-02, Vol.41 (4), p.427-437
Main Authors: Dębowska, Aleksandra, Magdziarz, Aneta, Kopia, Agnieszka, Kalemba-Rec, Izabela, Petrzak, Paweł
Format: Article
Language:English
Subjects:
Biomass ashes
high temperature corrosion
SEM - EDAX
steel 309 and 310
XRD
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Summary:The aim of the present research was to investigate the influence of different biomasses and sewage sludge ash (at 650°C for 1000 h and 2000 h, respectively) on the surface of weld cladded (Cold Metal Transfer technique, CMT) stainless steels 309 and 310. The biomass ashes were rich in K 2 O, CaO, SiO 2 , whereas sewage sludge ash in P 2 O 5 , CaO, Fe 2 O 3 , and SiO 2 . Characterization of the stainless steel cross-section and surface after the corrosion process inducted by the presence of ash were carried out by scanning electron microscopy (SEM) with EDAX analysis. Phase analysis of corrosion products was made by X-ray diffraction (XRD). Chromium, nickel, and iron oxides were the main oxides which occurred after the corrosion test. It has been proved that biomass ashes have the corrosive properties (because of their chemical composition) and are more aggressive than the sewage sludge ash for that kind of materials.
ISSN:1556-7036
1556-7230
DOI:10.1080/15567036.2018.1520327