Journal ArticleDOI
A comparative study of oxidation and hot corrosion of a cast nickel base superalloy in different corrosive environments
TLDR
In this paper, a cast nickel base superalloy was analyzed and the possible mechanisms of corrosion based on the corrosion compounds were discussed. But the results were limited to the case of hot corrosion and internal sulphidation.About:
This article is published in Materials Letters.The article was published on 1996-11-01. It has received 97 citations till now. The article focuses on the topics: Corrosion & Superalloy.read more
Citations
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Journal ArticleDOI
Hot corrosion of some superalloys and role of high-velocity oxy-fuel spray coatings : a review
TL;DR: In this paper, the authors reviewed the hot corrosion properties of Ni- and Fe-base superalloys to understand the phenomenon of hot corrosion in power generation equipment, gas turbines, internal combustion engines, fluidized bed combustion and industrial waste incinerators.
Journal ArticleDOI
Preparation and hot corrosion behaviour of an Al-gradient NiCoCrAlYSiB coating on a Ni-base superalloy
TL;DR: In this paper, a gradient NiCoCrAlYSiB coating was prepared on a Ni-base superalloy using arc ion plating (AIP) and subsequent gaseous phase aluminisation techniques.
Journal ArticleDOI
High temperature corrosion behaviour of a gradient NiCoCrAlYSi coating II: Oxidation and hot corrosion
TL;DR: In this article, the high temperature oxidation and hot corrosion behavior of a NiCoCrAlYSi coating and a gradient coating were investigated, and the degradation process of the gradient coating was favorably retarded by the formation of Cr(W)-rich sigma precipitates in the interdiffusion zone.
Journal ArticleDOI
High temperature cyclic oxidation and hot corrosion behaviours of superalloys at 900°C
TL;DR: In this article, the degradation mechanism of superalloys due to oxidation and hot corrosion was investigated and the role of alloying elements for the formation of protective oxide films over the surface of the super-alloys.
Journal ArticleDOI
Hot corrosion behavior of powder metallurgy Rene95 nickel-based superalloy in molten NaCl–Na2SO4 salts
TL;DR: In this article, the authors investigated the hot corrosion behavior of powder metallurgy (PM Rene95 Ni-based superalloy in molten 25% NaCl+75% Na2SO4 salts at 650°C, 700°C and 750°C.
References
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Journal ArticleDOI
Impurity Deposits in Gas Turbines from Fuels Containing Sodium and Vanadium
K. L. Luthra,H. S. Spacil +1 more
TL;DR: A thermochemical analysis of impurity deposits in gas turbines has been carried out for liquid fuels containing sodium and vanadium as discussed by the authors, and the minimum concentrations of vanadium and sodium in fuel above which deposition can occur have been determined for various operating conditions of the gas turbine.
Journal ArticleDOI
Hot corrosion of materials
TL;DR: In this article, solid-state electrochemical probes have been attached at the surface of coupons of preoxidized nickel which were subjected to hot corrosion by a fused Na2S0 film in an S02/02 gas environments.
Journal ArticleDOI
Hot corrosion of NiCr alloys in SO2/O2 atmospheres—II. Visual observations, analyses and mechanisms
M.G. Hocking,V. Vasantasree +1 more
TL;DR: In this paper, the corrosion kinetics of Ni, Cr and NiCr alloys (0·1−50%Cr) have been studied over a temperature range of 600-1000°C in SO 2 /O 2 atmospheres.
Journal ArticleDOI
The mechanical properties of surface scales on nickel-base superalloys—II. Contaminant corrosion
TL;DR: The effect of both sodium chloride and sodium sulphate contaminant corrosion on the same range of nickel based alloys as tested in oxidation is reported over the temperature range 650-950°C as mentioned in this paper.