Studies of the mechanism of metal dusting of 10CrMo9-10 steel after 10 years of operation in the semi-regenerative catalytic reformer

Abstract NSSMC is a high temperature alloy with noted resistance to metal dusting. This datasheet provides information on composition. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-1216. Producer or source: Nippon Steel and Sumitomo Metal Corporation.

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The Effect of Cu Content and Surface Finish on the Metal Dusting Resistance of Additively Manufactured NiCu Alloys

Oxidation of Metals ◽

10.1007/s11085-021-10037-8 ◽

2021 ◽

Author(s):

Katrin Jahns ◽

Anke S. Ulrich ◽

Clara Schlereth ◽

Lukas Reiff ◽

Ulrich Krupp ◽

...

Keyword(s):

Surface Finish ◽

Powder Bed Fusion ◽

Metal Dusting ◽

Laser Powder Bed Fusion ◽

Roughness Measurement ◽

Powder Bed ◽

Cu Content ◽

Binary Model ◽

Interesting Candidate ◽

Nicu Alloys

AbstractDue to the inhibiting behavior of Cu, NiCu alloys represent an interesting candidate in carburizing atmospheres. However, manufacturing by conventional casting is limited. It is important to know whether the corrosion behavior of conventionally and additively manufactured parts differ. Samples of binary NiCu alloys and Monel Alloy 400 were generated by laser powder bed fusion (LPBF) and exposed to a carburizing atmosphere (20 vol% CO–20% H2–1% H2O–8% CO2–51% Ar) at 620 °C and 18 bar for 960 h. Powders and printed samples were investigated using several analytic techniques such as EPMA, SEM, and roughness measurement. Grinding of the material after building (P1200 grit surface finish) generally reduced the metal dusting attack. Comparing the different compositions, a much lower attack was found in the case of the binary model alloys, whereas the technical Monel Alloy 400 showed a four orders of magnitude higher mass loss during exposure despite its Cu content of more than 30 wt%.

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Nano-sized carbon filament formation during metal dusting of stainless steel

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2003.08.019 ◽

2003 ◽

Vol 82 (3) ◽

pp. 929-936 ◽

Cited By ~ 14

Author(s):

Chao-Yi Lin ◽

Wen-Ta Tsai

Keyword(s):

Stainless Steel ◽

Metal Dusting ◽

Filament Formation ◽

Carbon Filament

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Bench Scale Testing of Low-NOx LBG Combustors

Journal of Engineering for Power ◽

10.1115/1.3227241 ◽

1982 ◽

Vol 104 (1) ◽

pp. 120-128 ◽

Cited By ~ 7

Author(s):

W. D. Clark ◽

B. A. Folsom ◽

W. R. Seeker ◽

C. W. Courtney

Keyword(s):

Gas Turbine ◽

Residence Time ◽

Attractive Alternative ◽

Nox Emissions ◽

Catalytic Reactor ◽

Power Cycle ◽

Bench Scale ◽

Gasification Process ◽

Stirred Reactor ◽

Catalytic Reformer

The high efficiencies obtained in a combined gas-turbine/steam-turbine power cycle burning low Btu gas (LBG) make it a potentially attractive alternative to the high sulfur emitting direct coal-fired steam cycle. In the gasification process, much of the bound nitrogen in coal is converted to ammonia in the LBG. This ammonia is largely converted to nitrogen oxides (NOx) in conventional combustors. This paper examines the pressurized bench scale performance of reactors previously demonstrated to produce low NOx emissions in atmospheric laboratory scale experiments. LBG was synthesized in a catalytic reformer and fired in three reactors: a catalytic reactor, a diffusion flame, and a stirred reactor. Effects of scale, pressure, stoichiometry, residence time, and preheat were examined. Lowest NOx emissions were produced in a rich/lean series staged catalytic reactor.

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