Effect of Cr and W addition on the oxidation behavior of Ni–8%Al alloy at 1000 °C

Yao, Jin; Pei, Jianlu; Li, Chong; Li, Huijun; Wang, Zumin; Liu, Yongchang

doi:10.1016/j.vacuum.2022.111044

Cited by 10 publications

(2 citation statements)

References 54 publications

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“…[8,9] Diverse oxides with different valence states and structures of FeO, Fe 3 O 4 , and Fe 2 O 3 can form a double-layer structured film on steel during oxidation process. [10][11][12][13][14][15] The FeO in the inner oxide film is prone to softening at high temperatures, providing good lubrication during high-temperature pipe piercing, [16] while the outer film with the main composition of Fe 2 O 3 is brittle and easily peels off. [8,17] In order to improve the quality of the oxide film, Zheng [18] developed a novel two-stage oxidation process for preparation of the piercing plug with the first oxidation stage mainly to promote the rapid growth of the oxide film, and then followed by the second reduction stage to improve the structure of the oxide film to not easy to scale off.…”

Section: Introductionmentioning

confidence: 99%

Influence of Furnace Pressure on the Growth Characteristic of Oxide Film on Piercing Plug Steel

Lu,

Tian

2024

steel research int.

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Different oxidation processes are carried out by using 20Cr2Ni4 piercing plug steel to study the influence of furnace pressure on the growth characteristic of oxide film in high‐temperature C2H5OH–H2O atmosphere. The results show that oxide film under different processes shows clearly two layers. The inner film is porous with the main constituents of FeO and Fe3O4 while the outer film is dense with large bubbles. The elemental Ni aggregates as a dot‐like substance in the inner oxide, where the enrichment of Cr lags behind the frontier boundary of Ni distribution. It is found that the thickness of the oxide film shows a parabolic relationship with product of the square root of oxidation time and furnace pressure. High furnace pressure can keep the pressure balance of the bubbles to swell to sufficient size, but may cause cracking during the relief process of pressure.

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Section: Introductionmentioning

confidence: 99%

Influence of Furnace Pressure on the Growth Characteristic of Oxide Film on Piercing Plug Steel

Lu,

Tian

2024

steel research int.

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“…A continuous increase in Ni leads to improved ductility, toughness, and impact resistance in Fe-based alloys [37]. Together with Cr, it improves oxidation and corrosion resistance [38][39][40][41]. Fe-C-Mn-B alloys may be effectively used as a coating material.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Friction Response of a Novel Eutectic Alloy Based on the Fe-C-Mn-B System

et al. 2022

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This paper focuses on the microstructure and tribological properties of novel hardfacing alloy based on Fe-C-Mn-B doped with Ni, Cr, and Si. The 4 mm-thick coating was deposited on the AISI 1045 carbon steel by the MIG-welding method using flux-cored wires in three passes. The transition zone thickness between the weld layers was ~80 μm, and the width of the substrate-coating interface was 5–10 μm. The following coating constituents were detected: coarser elongated M2B borides, finer particles of Cr7C3 carbides, and an Fe-based matrix consisting of ferrite and austenite. The nanohardness of the matrix was ~5–6 GPa, carbides ~16–19 GPa, and borides 22–23 GPa. A high cooling rate during coating fabrication leads to the formation of a fine mesh of M7C3 carbides; borides grow in the direction of heat removal, from the substrate to the friction surface, while in the transition zone, carbides become coarser. The dry sliding friction tests using a tribometer in PoD configuration were carried out at contact pressure 4, 7, 10, and 15 MPa against the AISI 1045 carbon steel (water-quenched and low-tempered, 50–52 HRC). The leading wear phenomenon at 4 and 7 MPa is fatigue, and at 10 and 15 MPa it is oxidation and delamination.

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Design of novel Ni-based superalloys with better oxidation resistance with the aid of machine learning

Duan

Wang

et al. 2023

J Mater Sci

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Effect of Cr and W addition on the oxidation behavior of Ni–8%Al alloy at 1000 °C

Cited by 10 publications

References 54 publications

Influence of Furnace Pressure on the Growth Characteristic of Oxide Film on Piercing Plug Steel

Influence of Furnace Pressure on the Growth Characteristic of Oxide Film on Piercing Plug Steel

Microstructure and Friction Response of a Novel Eutectic Alloy Based on the Fe-C-Mn-B System

Design of novel Ni-based superalloys with better oxidation resistance with the aid of machine learning

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