eprintid: 5796
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/57/96
datestamp: 2023-11-09 16:17:32
lastmod: 2023-11-09 16:17:32
status_changed: 2023-11-09 16:03:54
type: article
metadata_visibility: show
creators_name: Kamal, S.
creators_name: Sharma, K.V.
creators_name: Jayaganthan, R.
creators_name: Prakash, S.
title: Hot corrosion behavior of thermal spray coatings on superalloy in coal-fired boiler environment
ispublished: pub
keywords: Aluminum alloys; Boiler corrosion; Cerium alloys; Cerium oxide; Chromium alloys; Coal; Coal combustion; Coal fired boilers; Coatings; Cobalt alloys; Combustion knock; Corrosion resistance; Corrosive effects; Detonation; Fossil fuel power plants; High temperature corrosion; Sprayed coatings; Superalloys; Superheater tubes; Tantalum alloys; Temperature; Yttrium alloys, Boiler environments; Coated superalloys; Combustion of coal; Detonation gun; Hot corrosion; Hot corrosion resistance; superfer 800H; Thermal spray coatings, Corrosion resistant coatings
note: cited By 8
abstract: Coal is an attractive fuel owing to its low price linked to its worldwide availability but combustion of coal generates very corrosive media especially near the superheater tubes. The present investigation is an attempt to evaluate the hot corrosion behavior of detonation-gun sprayed coatings of Cr3C2-NiCr, NiCrAlY + 0.4 wt CeO2, and NiCoCrAlYTa on superfer 800H, exposed to low temperature super-heater zone of the coal-fired boiler. The specimens were hanged in the platen super-heater of coal-fired boiler where the gas temperature was around 900 °C ± 10 °C. Hot corrosion experiments were performed for 10 cycles, each cycle consisting of 100 h exposure followed by 1 h cooling at ambient temperature. All three coatings deposited on superfer 800H imparted better hot corrosion resistance than the bare uncoated one. The Cr3C2-NiCr coated superalloy performed better than the other two coatings in the given boiler environment. © Materials Research Society 2015.
date: 2015
publisher: Cambridge University Press
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84944096585&doi=10.1557%2fjmr.2015.264&partnerID=40&md5=d46ffe8b338be065570acfb64680779c
id_number: 10.1557/jmr.2015.264
full_text_status: none
publication: Journal of Materials Research
volume: 30
number: 18
pagerange: 2829-2843
refereed: TRUE
issn: 08842914
citation:   Kamal, S. and Sharma, K.V. and Jayaganthan, R. and Prakash, S.  (2015) Hot corrosion behavior of thermal spray coatings on superalloy in coal-fired boiler environment.  Journal of Materials Research, 30 (18).  pp. 2829-2843.  ISSN 08842914