Arc-sprayed Fe-based coatings from coredwires for wear and corrosion protection in power engineering
Research output: Contribution to journal › Article › Scientific › peer-review
Standard
Arc-sprayed Fe-based coatings from coredwires for wear and corrosion protection in power engineering. / Yury, Korobov; Filippov, Michael; Makarov, Aleksey; Malygina, Irina; Soboleva, Natalia; Fantozzi, Davide; Andrea, Milanti; Koivuluoto, Heli; Vuoristo, Petri.
In: Coatings, Vol. 8, No. 2, 71, 01.02.2018.Research output: Contribution to journal › Article › Scientific › peer-review
Harvard
APA
Vancouver
Author
Bibtex - Download
}
RIS (suitable for import to EndNote) - Download
TY - JOUR
T1 - Arc-sprayed Fe-based coatings from coredwires for wear and corrosion protection in power engineering
AU - Yury, Korobov
AU - Filippov, Michael
AU - Makarov, Aleksey
AU - Malygina, Irina
AU - Soboleva, Natalia
AU - Fantozzi, Davide
AU - Andrea, Milanti
AU - Koivuluoto, Heli
AU - Vuoristo, Petri
PY - 2018/2/1
Y1 - 2018/2/1
N2 - High wear and corrosion of parts lead to an increase in operating costs at thermal power plants. The present paper shows a possible solution to this problem through the arc spraying of protective coatings. Cored wires of the base alloying system Fe-Cr-C were used as a feedstock. Rise of wear- and heat-resistance of the coatings was achieved by additional alloying with Al, B, Ti, and Y. The wear and heat resistance of the coatings were tested via a two-body wear test accompanied by microhardness measurement and the gravimetric method, respectively. A high-temperature corrosion test was performed at 550 °C under KCl salt deposition. The porosity and adhesion strengths of the coatings were also evaluated. The microstructure was investigated with a scanning electron microscope (SEM) unit equipped with an energy dispersive X-ray (EDX) microanalyzer, and the phase composition was assessed by X-ray diffractometry. The test results showed the positive influence of additional alloying with Y on the coating properties. A comparison with commercial boiler materials showed that the coatings have the same level of heat resistance as austenite steels and are an order of magnitude higher than that of pearlite and martensite-ferrite steels. The coatings can be applied to wear- and heat-resistant applications at 20-700 °C.
AB - High wear and corrosion of parts lead to an increase in operating costs at thermal power plants. The present paper shows a possible solution to this problem through the arc spraying of protective coatings. Cored wires of the base alloying system Fe-Cr-C were used as a feedstock. Rise of wear- and heat-resistance of the coatings was achieved by additional alloying with Al, B, Ti, and Y. The wear and heat resistance of the coatings were tested via a two-body wear test accompanied by microhardness measurement and the gravimetric method, respectively. A high-temperature corrosion test was performed at 550 °C under KCl salt deposition. The porosity and adhesion strengths of the coatings were also evaluated. The microstructure was investigated with a scanning electron microscope (SEM) unit equipped with an energy dispersive X-ray (EDX) microanalyzer, and the phase composition was assessed by X-ray diffractometry. The test results showed the positive influence of additional alloying with Y on the coating properties. A comparison with commercial boiler materials showed that the coatings have the same level of heat resistance as austenite steels and are an order of magnitude higher than that of pearlite and martensite-ferrite steels. The coatings can be applied to wear- and heat-resistant applications at 20-700 °C.
KW - Adhesion
KW - Arc spraying
KW - Coating
KW - Cored wire
KW - Waste-to-energy boilers
KW - Wear and corrosion resistance
U2 - 10.3390/coatings8020071
DO - 10.3390/coatings8020071
M3 - Article
VL - 8
JO - Coatings
JF - Coatings
SN - 2079-6412
IS - 2
M1 - 71
ER -