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09269 Corrosion Behavior of Ni-Based Alloys in Coal Synthetic Gas Atmosphere

Picture for 09269 Corrosion Behavior of Ni-Based Alloys in Coal Synthetic Gas Atmosphere
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Product Number: 51300-09269-SG
ISBN: 09269 2009 CP
Author: Margaret Ziomek-Moroz
Publication Date: 2009
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The product of coal gasification is syngas, a mixture of hydrogen and carbon monoxide, in which the selected materials may operate. Understanding alloys performance in CO-rich atmospheres is important toward the development of coal gasification systems. This paper describes the corrosion behavior of Alloy 242 and Alloy 230 after exposure to a CO-rich atmosphere at 750°C. Chemical composition of the gaseous environment was determined by gas chromatography (GC). The surfaces of the corroded samples were investigated by scanning electron microscopy (SEM) equipped with microchemical analytical capabilities. X-ray diffraction (XRD) analysis was also used in this research.

Keywords: corrosion, gasification, fuel cells, nickel base alloys
The product of coal gasification is syngas, a mixture of hydrogen and carbon monoxide, in which the selected materials may operate. Understanding alloys performance in CO-rich atmospheres is important toward the development of coal gasification systems. This paper describes the corrosion behavior of Alloy 242 and Alloy 230 after exposure to a CO-rich atmosphere at 750°C. Chemical composition of the gaseous environment was determined by gas chromatography (GC). The surfaces of the corroded samples were investigated by scanning electron microscopy (SEM) equipped with microchemical analytical capabilities. X-ray diffraction (XRD) analysis was also used in this research.

Keywords: corrosion, gasification, fuel cells, nickel base alloys
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