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Paper Information

Journal:   ADVANCED PROCESSES IN MATERIALS   FALL 2010 , Volume 4 , Number 3 (14); Page(s) 33 To 43.
 
Paper: 

INFLUENCE OF THE SPRAY DISTANCE AND POWDER FEED RATE ON THE HOT-CORROSION BEHAVIOUR OF HVOF SPRAYED NICRALY COATINGS

 
 
Author(s):  SHARIFHASAN SOMAYEH*, VALEFI ZIA, HOSSEINI SEYED HOJJATOLLAH, JAFARZADEH KOUROSH
 
* FACULTY OF MATERIALS ENGINEERING, MALEK-E ASHTAR UNIVERSITY OF TECHNOLOGY, TEHRAN
 
Abstract: 

In this investigation, NiCrAlY coating was deposited on steel substrate using high velocity oxy-fuel (HVOF) process. Different spray parameters such as spray distance and powder feed rate were applied and the hot corrosion behaviour in molten salt (Na2SO4- 60%V2O5) environment at 900oC was studied. Optical microscope and scanning electron microscopy/energy dispersive spectroscopic analysis (SEM/EDS) techniques were used to analyse the corrosion products. The analysis of the results indicates that the spraying distance and the powder feed rate have a significant effect on the properties of NiCrAlY coatings such as oxygen content and porosity. The coatings prepared by 20 cm spraying distance and 32gr/min powder feed rate have the best corrosion resistance, because of the less oxides.

 
Keyword(s): HOT CORROSION, NICRALY COATING, HIGH VELOCITY OXYFUEL SPRAYING
 
 
References: 
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Cite:
APA: Copy

SHARIFHASAN, S., & VALEFI, Z., & HOSSEINI, S., & JAFARZADEH, K. (2010). INFLUENCE OF THE SPRAY DISTANCE AND POWDER FEED RATE ON THE HOT-CORROSION BEHAVIOUR OF HVOF SPRAYED NICRALY COATINGS. ADVANCED PROCESSES IN MATERIALS, 4(3 (14)), 33-43. https://www.sid.ir/en/journal/ViewPaper.aspx?id=197382



Vancouver: Copy

SHARIFHASAN SOMAYEH, VALEFI ZIA, HOSSEINI SEYED HOJJATOLLAH, JAFARZADEH KOUROSH. INFLUENCE OF THE SPRAY DISTANCE AND POWDER FEED RATE ON THE HOT-CORROSION BEHAVIOUR OF HVOF SPRAYED NICRALY COATINGS. ADVANCED PROCESSES IN MATERIALS. 2010 [cited 2021April19];4(3 (14)):33-43. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=197382



IEEE: Copy

SHARIFHASAN, S., VALEFI, Z., HOSSEINI, S., JAFARZADEH, K., 2010. INFLUENCE OF THE SPRAY DISTANCE AND POWDER FEED RATE ON THE HOT-CORROSION BEHAVIOUR OF HVOF SPRAYED NICRALY COATINGS. ADVANCED PROCESSES IN MATERIALS, [online] 4(3 (14)), pp.33-43. Available: <https://www.sid.ir/en/journal/ViewPaper.aspx?id=197382>.



 
 
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