The Influence of Different Focusing Currents on the Microstructure Evolution and Wear Properties of a Scanning Electron Beam Modified Inconel 625 Nickel Base Alloy Surface

Li, Juan; Yao, Jiaye; Zhao, Guanghui; Li, Huaying; Li, Yugui; Liu, Jie

doi:10.3390/cryst13020325

Cited by 6 publications

(1 citation statement)

References 20 publications

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“…Due to the high integration of Inconel alloys into a large quantity of industrial fields, the possibility of their modification and optimization for specific applications needs to be evaluated. The authors of [20] have studied the microstructure and wear properties of an electron-beam-modified Inconel Ni-based alloy 625, and the results showed that the wear properties were improved due to the strengthening effect of the treatment. However, investigations regarding the effect of treating the surface of Inconel alloys using high-energy fluxes are highly limited regarding the effect of the power of the electron beam on the plasticity of the specimens.…”

Section: Introductionmentioning

confidence: 99%

Effect of Electron Beam Surface Modification on the Plasticity of Inconel Alloy 625

Valkov,

Kotlarski,

Parshorov

et al. 2024

Coatings

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In the present work, we present results on the influence of electron beam surface modification on the resistance to plastic deformation and plasticity of Inconel alloy 625. During the treatment procedure, the electron beam currents were 10 and 20 mA, corresponding to beam powers of 600 W and 1200 W. The structures of the modified specimens were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX). The nanohardness and Young’s modulus were studied through nanoindentation experiments. The plasticity of the treated materials as well as of the untreated ones was studied through an evaluation of H3/E2, which points to resistance to plastic deformation. The results obtained show that the electron beam surface modification procedure leads to a reorientation of microvolumes and the formation of a preferred crystallographic orientation. The surface treatment of the samples using an electron beam with a power of 600 W did not lead to major changes in the structures of the samples. However, the use of a beam with a power of 1200 W led to the formation of a clearly separated modified zone with a thickness in the range of 13 to 15 μm. The Young’s modulus increased from about 100 to 153 GPa in the case of electron beam surface modification using the lower-power electron beam. The application of the higher-power electron beam did not lead to a significant change in the modulus of elasticity as compared to the untreated specimen. Also, it was found that the treatment procedure pointed to a decrease in nanohardness when the maximum power of the electron beam was applied. The resistance to plastic deformation, i.e., the H3/E2 ratio, showed that the ratio decreased significantly in both cases of electron beam surface modification, pointing to an improvement in the plasticity of the surface of the Inconel alloy 625.

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Section: Introductionmentioning

confidence: 99%

Effect of Electron Beam Surface Modification on the Plasticity of Inconel Alloy 625

Valkov,

Kotlarski,

Parshorov

et al. 2024

Coatings

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Study of Surface Modification of NiCrBSi Coating by Electron Beam Cladding on Inconel 625 Alloy

Li,

Hou,

Zhao

et al. 2023

Adv Eng Mater

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Surface modification of nickel‐based 625 alloy is performed using a vacuum electron beam to improve its surface properties. The development of the microstructure is analyzed through scanning electron microscopy, X‐ray diffraction, and transmission electron microscopy. The tribometer RETC (MFT‐5000) is used to assess the wear resistance of the modified surface. The results demonstrate that the microstructure of the cladding zone exhibits columnar growth of the face‐centered cubic phase. As the scanning speed increases, the Cube texture s gradually weak, surface hardness increases, and both wear volume and wear rate decrease, thereby improving wear resistance. The maximum surface hardness is achieved at a scanning speed of 400 mm min−1, with a value of 489.8 HV, 1.977 times higher than the substrate. The minimum wear volume measures 0.1518 mm3, and the wear rate is likewise at its lowest point, measuring 0.506 × 10−5 mm3 N−1 m. Compared to the substrate, the material demonstrates an 88.44% reduction in wear rate and an 8.65‐fold improvement in wear resistance. These results demonstrate the significant enhancement of surface properties in Inconel 625, through surface modification using a vacuum electron beam.

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Study on the process optimization and wear resistance of electron beam cladding AlCoCrFeNi coating on 253MA austenitic stainless steel surface

Zhao,

Zhang,

Zhao

et al. 2023

Materials Characterization

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The Influence of Different Focusing Currents on the Microstructure Evolution and Wear Properties of a Scanning Electron Beam Modified Inconel 625 Nickel Base Alloy Surface

Cited by 6 publications

References 20 publications

Effect of Electron Beam Surface Modification on the Plasticity of Inconel Alloy 625

Effect of Electron Beam Surface Modification on the Plasticity of Inconel Alloy 625

Study of Surface Modification of NiCrBSi Coating by Electron Beam Cladding on Inconel 625 Alloy

Study on the process optimization and wear resistance of electron beam cladding AlCoCrFeNi coating on 253MA austenitic stainless steel surface

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