Theoretical and Experimental Study of Nickel-Based Self-Fluxing Materials

Krivorogova, A. S.; Ilinykh, N. I.; Ilinykh, S. A.; Гельчинский, Б. Р.

doi:10.1134/s0036029520080091

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…The common coating techniques used for these alloys are flame spraying [3][4][5][6], plasma spraying [7][8][9], high-velocity oxygen fuel spraying (HVOF) [10][11][12], laser cladding [13][14][15][16][17], laser metal deposition (LMD) [18,19], non-vacuum electron beam cladding [20,21], laser powder bed fusion (LPBF) [22], and the plasma transferred arc welding (PTAW) processes [23]. All of these techniques have high solidification rates that can lead to different types of defects, and they can also enhance the porosity and cracking susceptibility of these materials [24].…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition Effects on the Microstructure and Hot Hardness of NiCrSiFeB Self-Fluxing Alloys Manufactured via Gravity Casting

Niklas,

Santos,

Garcia

et al. 2023

JMMP

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Ni-Cr-Si-Fe-B self-fluxing alloys are commonly used in hardfacing applications; in addition, they are subjected to conditions of wear, corrosion, and high temperatures, but are not used in casting applications. In this work, gravity casting is presented as a potential manufacturing route for these alloys. Three alloys with different chemical compositions were investigated with a focus on microstructure characterization, solidification path, and strengthening mechanisms. Phases and precipitates were characterized using a field emission scanning electron microscope employing energy-dispersive X-ray spectroscopy, wavelength dispersive spectroscopy, and electron backscatter diffraction. Nano- and microhardness indentations were performed at different phases to understand their contribution to the overall hardness of the studied alloys. Hardness measurements were performed at room temperature and high temperature (650 °C). The borides and carbides were the hardest phases in the microstructure, thus contributing significantly to the overall hardness of the alloys. Additional hardening was provided by the presence of hard Ni3B eutectics; however, there was also a small contribution from the solid solution hardening of the γ-Ni dendrites in the high-alloy-grade sample. The amount and size of the different phases and precipitates depended mainly on the contents of the Cr, C, and B of the alloy.

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Section: Introductionmentioning

confidence: 99%

Chemical Composition Effects on the Microstructure and Hot Hardness of NiCrSiFeB Self-Fluxing Alloys Manufactured via Gravity Casting

Niklas,

Santos,

Garcia

et al. 2023

JMMP

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“…This method provides high performance and versatility, as well as a wide range of coatings properties. Powder self-fluxing materials are widely used for the restoration of worn surfaces by sputtering and sputtering with reflow [6,[9][10][11][12][13][14]. The most common of them are self-fluxing alloys of the Ni-Cr-Si-B system.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Modeling of Ni-Si-Cr-B-C System in Air and Propane Atmosphere

et al. 2021

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Thermodynamic modeling of a powder self-fluxing material PGSR-2 based on nickel (wt. %): Ni-79.3, C-0.5, Cr-15, Si-3.2, B-2 was carried out. Modeling was executed in the temperature range of 300-6000 K in the atmosphere of air and gas mixture “92 vol. % air + 8 vol. % propane” at a total pressure of P=105 Pa. The temperature dependences of the equilibrium composition of the condensed and gas phases formed during the heating of the investigated system were calculated. It is shown that the distribution of the components of the condensed and gas phases changes significantly when the initial content of the powder material and the composition of the plasma-forming gas are changed.

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Thermodynamic modeling of Ni-Cr-B-C-Si system in “air+propane” atmosphere

Ilinykh

Krivorogova

Gelchinsky

et al. 2021

J. Phys.: Conf. Ser.

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In this paper, thermodynamic modeling of a powder self-fluxing material PGSR-2 based on nickel (wt. %): Ni-79.3, C-0.5, Cr-15, Si-3.2, B–2 was carried out. The simulation was performed in the temperature range of 300-6000 K in the atmosphere of “92 vol. % air + 8 vol. % propane” at a total pressure of P = 105 Pa. The temperature dependences of the equilibrium composition of the condensed and gas phases formed during heating are calculated.

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Theoretical and Experimental Study of Nickel-Based Self-Fluxing Materials

Cited by 4 publications

References 2 publications

Chemical Composition Effects on the Microstructure and Hot Hardness of NiCrSiFeB Self-Fluxing Alloys Manufactured via Gravity Casting

Chemical Composition Effects on the Microstructure and Hot Hardness of NiCrSiFeB Self-Fluxing Alloys Manufactured via Gravity Casting

Thermodynamic Modeling of Ni-Si-Cr-B-C System in Air and Propane Atmosphere

Thermodynamic modeling of Ni-Cr-B-C-Si system in “air+propane” atmosphere

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