Hot corrosion behaviour of HVOF-sprayed NiCrBSi coatings on Ni- and Fe-based superalloys in Na2SO4–60% V2O5 environment at 900°C

2006 ◽  
Vol 54 (3) ◽  
pp. 773-784 ◽  
Author(s):  
T.S. Sidhu ◽  
S. Prakash ◽  
R.D. Agrawal
Keyword(s):  
Hot Corrosion ◽  
Corrosion Behaviour ◽  
Nicrbsi Coatings

Influence of Carbon on the Hot Corrosion Behaviour of Fe-Base Alloys

1989 ◽  
Vol 30 (9) ◽  
pp. 707-716 ◽  
Author(s):  
A. U. Malik ◽  
M. Ishaq ◽  
Sharif Ahmad ◽  
Sultan Ahmad
Keyword(s):  
Hot Corrosion ◽  
Corrosion Behaviour

Hot Corrosion Behaviour of Coated 18 Cr-8.5 Ni Steel in Na2SO4 and NaCl

1981 ◽  
Vol 18 (10) ◽  
pp. 483-493
Author(s):  
Anees U. Malik ◽  
Sharif Ahmad
Keyword(s):  
Hot Corrosion ◽  
Corrosion Behaviour

scholarly journals Study of Molten Salt Corrosion of Superni-75 using Termogravimetric Technique

1970 ◽  
Vol 3 (2) ◽  
pp. 77-82 ◽  
Author(s):  
TS Sidhu ◽  
S Prakash ◽  
RD Agrawal
Keyword(s):  
Corrosion Resistance ◽  
Molten Salt ◽  
Hot Corrosion ◽  
Corrosion Behaviour ◽  
Thick Layer ◽  
X Ray Diffraction ◽  
Salt Corrosion ◽  
Marine Engineering ◽  
The Given ◽  
Kinetics Of

The present study aims to evaluate the hot corrosion behaviour of the Ni-based alloy Superni- 75 in the molten salt environment of Na2SO-60%V2O5 at 900°C under cyclic conditions. The thermogravimetric technique was used to establish the kinetics of corrosion. X-ray diffraction, scanning electron microscopy/energy-dispersive analysis and electron probe microanalysis techniques were used to analyse the corrosion products. Superni-75 has successfully provided the hot corrosion resistance to the given molten salt environment. The hot corrosion resistance of the Superni-75 has been attributed to the formation of uniform, homogeneous and adherent thick layer of the scale consisting mainly of oxides of nickel and chromium, and refractory Ni(VO3)2. These oxides and refractory nickel vanadates have blocked the penetration of oxygen and other corrosive species to the substrate. Keywords: Hot corrosion, nickel-based alloy, superalloy, molten salt environment   DOI: 10.3329/jname.v3i2.922 Journal of Naval Architecture and Marine Engineering 3(2006) 77-82

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