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

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SHARIFHASAN SOMAYEH; VALEFI ZIA; HOSSEINI SEYED HOJJATOLLAH; JAFARZADEH KOUROSH

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Journal: Journal of Advanced Processes in Materials Engineering Year:2010 | Volume:4 | Issue:3 (14) Page(s): 33-43

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Title

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 | Issue Writer Certificate

Keywords

HOT CORROSIONQ2

NICRALY COATINGQ3

HIGH VELOCITY OXYFUEL SPRAYINGQ3

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.

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References

HOT CORROSION AND PERFORMANCE OF NICKEL-BASED COATINGS (REVIEW ARTICLE)

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APA: Copy

SHARIFHASAN, SOMAYEH, VALEFI, ZIA, HOSSEINI, SEYED HOJJATOLLAH, & JAFARZADEH, KOUROSH. (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. SID. https://sid.ir/paper/172750/en

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[Internet]. 2010;4(3 (14)):33-43. Available from: https://sid.ir/paper/172750/en

IEEE: Copy

SOMAYEH SHARIFHASAN, ZIA VALEFI, SEYED HOJJATOLLAH HOSSEINI, and KOUROSH JAFARZADEH, “INFLUENCE OF THE SPRAY DISTANCE AND POWDER FEED RATE ON THE HOT-CORROSION BEHAVIOUR OF HVOF SPRAYED NICRALY COATINGS,” ADVANCED PROCESSES IN MATERIALS, vol. 4, no. 3 (14), pp. 33–43, 2010, [Online]. Available: https://sid.ir/paper/172750/en

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