Effect of oxygen partial pressure on oxidation behavior of ferritic stainless steel AISI 441 at high temperatures

Salgado, Maria de Fátima; Carvalho, Iure S.; Santos, R. S. S. dos; Porto, João Alberto Santos; Corrêa, Olandir Vercíno; Ramanathan, Lalgudi Venkataraman; Brandim, Ayrton de Sá; Lins, Vanessa de Freitas Cunha

doi:10.1016/j.engfailanal.2019.07.011

Cited by 6 publications

(1 citation statement)

References 10 publications

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“…The effect of oxygen is also studied for the long‐term oxidation of ferritic AISI 441, and even with very low oxygen partial pressure, a chromium oxide layer is produced at 950 °C. [ 13 ] Respectively, Alnegren et al [ 14 ] observed that all the oxygen contents (0.01%, 1%, and 100%) in an atmosphere produced a chromium oxide layer and an outer Cr–Mn spinel layer at 850 °C for ferritic stainless steel ATI 441HP with similar Cr content to that of AISI 441.…”

Section: Introductionmentioning

confidence: 99%

From Fossil‐Fueled to Hydrogen‐Fueled Annealing Furnaces: Effects on the Oxidation of Stainless Steels

Airaksinen

Laukka

Heikkinen

et al. 2023

steel research int.

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The possibility of replacing methane with hydrogen as the fuel gas in an annealing furnace is studied regarding the oxidation of ferritic AISI 441 and austenitic AISI 304 stainless steels during simulated short‐term annealing. Oxide‐scale formation using the simulated atmospheres based on methane–air, methane–oxygen, and hydrogen–oxygen combustions with different oxidant gas excesses is compared at steel grades’ furnace temperature ranges in an annealing process. Thermogravimetry is used to determine variations of weight gain during oxidation, and field‐emission scanning electron microscopy and glow discharge optical emission spectroscopy are used to characterize oxide scales. The transition to H2 as the fuel gas is more suitable for the ferritic grade than the austenitic grade at the studied temperatures. High water vapor content in hydrogen– and methane–oxygen combustion atmospheres promotes breakaway oxidation for both steel grades. Nodule formation is significantly observed under the most demanding annealing conditions for the ferritic grade, while only the lightest conditions remain without the signs of breakaway oxidation for the austenitic grade. Changes in the oxide‐scale structures produced in both hydrogen–oxygen and methane–oxygen atmospheres are in significant, which can facilitate the exchanges between these atmospheres in relation to methane–air combustion.

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Section: Introductionmentioning

confidence: 99%

From Fossil‐Fueled to Hydrogen‐Fueled Annealing Furnaces: Effects on the Oxidation of Stainless Steels

Airaksinen

Laukka

Heikkinen

et al. 2023

steel research int.

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Modeling of Trilayered Oxide Thermally Grown on 441 Ferritic Stainless Steel at 900 °C in Synthetic Air

Roy

Latu-Romain

Guillotte³

et al. 2021

Oxid Met

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Ferritic stainless steel (AISI 441) oxidation was studied at 900 °C in synthetic air. At short time of oxidation (3 min), the oxide scale is comprised of chromia including some MnCr 2 O 4 nodules (of a few tens of nanometers in diameter) and exhibits n-type conduction. Later, after 10 h, a trilayered morphology was observed with an internal equiaxed chromia, an intermediate columnar chromia and a top covering spinel layer. A model for oxide scale growth has been developed in this paper, taking into account all experimental observations and earlier studies.

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Steady laminar stagnation flow NH3-H2-air flame at a plane wall: Flame extinction limit and its influence on the thermo-mechanical stress

Yu,

Srikanth,

Böhlke

et al. 2024

Applications in Energy and Combustion Science

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Effect of oxygen partial pressure on oxidation behavior of ferritic stainless steel AISI 441 at high temperatures

Cited by 6 publications

References 10 publications

From Fossil‐Fueled to Hydrogen‐Fueled Annealing Furnaces: Effects on the Oxidation of Stainless Steels

From Fossil‐Fueled to Hydrogen‐Fueled Annealing Furnaces: Effects on the Oxidation of Stainless Steels

Modeling of Trilayered Oxide Thermally Grown on 441 Ferritic Stainless Steel at 900 °C in Synthetic Air

Steady laminar stagnation flow NH3-H2-air flame at a plane wall: Flame extinction limit and its influence on the thermo-mechanical stress

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