Journal ArticleDOI
Comparison of hot-salt corrosion behaviour of superalloys in high and low velocity burner rigs
John Nicholls,S. R. J. Saunders +1 more
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TLDR
In this article, four uncoated superalloys, IN738LC, IN939, IN100 and IN713LC, were be-en exposed in both high and low velocity burner rigs for times of up to 1500 h at temperatures in the range 700-950°C.Abstract:
Four uncoated superalloys, IN738LC, IN939, IN100 and IN713LC have be-en exposed in both high and low velocity burner rigs for times of up to 1500 h at temperatures in the range 700–950°C. V...read more
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Journal ArticleDOI
Hot corrosion in gas turbine components
TL;DR: In this paper, the macroscopic and microscopic characteristics as well as the proposed mechanisms of Type I (high-temperature) and Type II (low temperature) hot corrosion are reviewed.
Journal ArticleDOI
Corrosion of thermal barrier coatings by vanadium and sulfur compounds
TL;DR: In this paper, hot corrosion studies of two plasma-sprayed coatings, yttria-stabilized zirconia and calcium silicate, were undertaken in order to compare the performance of these materials for use as thermal barrier coatings in high-temperature combustion environments.
Journal ArticleDOI
A method for investigation of hot corrosion by gaseous Na2SO4
TL;DR: In this article, a novel in situ exposure method for investigating hot corrosion of aluminde coatings in the absence of an alkali sulphate melt is presented, where samples are exposed to Na2SO4(g) at a temperature above the dew point of the gas.
Journal ArticleDOI
Cyclic oxidation - guidelines for test standardisation, aimed at the assessment of service behaviour †
J. R. Nicholls,M. J. Bennett +1 more
TL;DR: In this article, it is shown that the response of an alloy under cyclic oxidation testing varies, depending on the exact test conditions chosen and the length of test exposure, but for many alloy systems this response has common features.
Journal ArticleDOI
Laboratory studies of erosion-corrosion processes under oxidising and oxidising/sulphidising conditions
TL;DR: A review of a range of laboratory test facilities that have been established to study high temperature erosion-corrosion processes and discusses how each has aimed to simulate in plant conditions, their limitations and successes is presented in this article.