Microstructure evolution and properties of laser cladding Nb containing eutectic high entropy alloys

Li, Zhaotong; Jing, Cainian; Feng, Yan; Wu, Zhonglin; Lin, Tao; Zhao, Jingrui

doi:10.1016/j.ijrmhm.2022.105992

Cited by 33 publications

(4 citation statements)

References 38 publications

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“…Additionally, their larger atomic radius typically results in an increase in the solid solution's lattice constant [34], enhancing the coatings' mechanical qualities and wear resistance. Recent studies by Chang et al [35], Xiang et al [36], Liu et al [37], and Li et al [38] examined the effects of refractory alloying elements on the characteristics of high-entropy alloy coatings. Based on how well strength, plasticity, and density match, refractory alloy elements can be broadly categorized into three groups.…”

Section: In Situ Generation Methodsmentioning

confidence: 99%

Progress on the Properties of Ceramic Phase-Reinforced High-Entropy Alloy Composite Coatings Produced via Laser Cladding

Zhang,

Yong,

Wang

et al. 2024

Coatings

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The production of ceramic phase-reinforced high-entropy alloy composite coatings with excellent mechanical properties, high-temperature oxidation resistance, and corrosion resistance via laser cladding is a new hotspot in the field of surface engineering. However, as high-entropy alloys have a wide range of constituent systems and different kinds of ceramic particles are introduced in different ways that give the coatings unique microscopic organization, structure, and synthesized performance, it is necessary to review the methods of preparing ceramic phase-reinforced high-entropy alloys composite coatings via laser cladding. In this paper, the latest research progress on laser cladding technology in the preparation of ceramic phase-reinforced high-entropy alloy composite coatings is first reviewed. On this basis, the effects of ceramic particles, alloying elements, process parameters, and the microstructure and properties of the coatings are analyzed with the examples of the in situ generation method and the externally added method. Finally, research gaps and future trends are pointed out, serving as a reference for the subsequent research, application, and development of the preparation of ceramic phase-reinforced high-entropy alloy composite coatings.

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Section: In Situ Generation Methodsmentioning

confidence: 99%

Progress on the Properties of Ceramic Phase-Reinforced High-Entropy Alloy Composite Coatings Produced via Laser Cladding

Zhang,

Yong,

Wang

et al. 2024

Coatings

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“…The addition of Nb to the AlCoCrFeNi 2.1 HEA to form the AlCoCrFeNi 2 .1Nbx alloy substantially improved the compressive yield strength (626–1998 MPa) and hardness (295–619 HV) of the alloy [138]. In another study, the addition of Nb to Al0.5CoCrFeNiNbx alloy led to the transformation from sub-eutectic to hyper-eutectic phase, the formation of laves phase and grain refinement, while the hardness and the wear performance were improved [139]. The addition of Mo element to the (CoCrNi) 95 Mo x [140] and Co 33 Ni 33 Cr 19 Mn 15 [141] medium entropy alloys aided precipitation strengthening in the alloy.…”

Section: Post-processing Treatments Of High Entropy Alloys (Heas)mentioning

confidence: 99%

Post-processing treatments–microstructure–performance interrelationship of metal additive manufactured aerospace alloys: A review

Ojo

Taban

2023

Materials Science and Technology

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The application of Metal Additive Manufacturing (MAM) in the aerospace industry has been gaining attention. The poor surface quality of parts greatly limits the prospects of MAM-produced parts in the aerospace industry as fatigue performance hinges on a good surface finish and homogeneous microstructure. Post-processing treatments are important to improve the surface quality and the overall performance of MAM-produced parts during static and dynamic loadings. This paper provides a review of the current state of post-processing treatment options for MAM-produced parts. The advances in the post-processing treatments of MAM parts to improve fatigue strength, tensile strength, surface integrity and other properties of parts are reviewed. Future research prospects on metal additive manufacturing of aerospace parts are briefly expounded. Abbreviations: AM: Additive Manufacturing; CMT-WAAM: Cold Metal Transfer-Based Wire Arc Additive Manufacturing; CSD: Cold Spray Deposition; DA: Direct Aging; DED: Directed Energy Deposition; E: Elongation; EBAM: Wire-feed Electron Beam Additive Manufacturing; EBAM Electron Beam Additive Manufacturing; EBSD: Electron Back Scattered Diffraction; FRAM: Friction Rolling Additive Manufacturing; FSAM: Friction Stir Additive Manufacturing; FSP: Friction Stir Processing; HFDB: Hybrid Friction Diffusion Bonding; HIP: Hot Isostatic Pressing; HSA Homogenisation + Solution Treatment + Aging; IFSP: Interlayer Friction Stir Processing; IPF: Inverse Pole Figure; KAM: Kernel Average Misorientation; LAM: Laser Additive Manufacturing Process; LENS: Laser Engineered Net Shaping; LDM: Laser Deposition Manufacturing; L-PBF: Laser Powder Bed Fusion; MAM: Metal Additive Manufacturing; MTFS: Multi-track Multi-layer Friction Surfacing; O-WLAM: Wire Oscillating Laser Additive Manufacturing (O-WLAM); S: Solution Treatment; SA: Solution Treatment + aging; TEM: Transmission Electron Microscope; UAM: Ultrasonic Additive Manufacturing; UTS: Ultimate Tensile Strength; WAAM: Wire Arc Additive Manufacturing; YS: Yield Strength

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“…Popular surface-strengthening methods for aluminum alloys include chemical plating, electrodeposition techniques, and laser cladding. Among these, laser cladding stands out due to its lower pollution levels, high work efficiency, and the ability to apply thick coatings, advantages that make it superior to other surface treatment methods [4][5][6][7][8]. For instance, Hwang et al [9] utilized anodizing technology to generate an anodic oxide film on the surface of the 5083 aluminum alloy.…”

Section: Introductionmentioning

confidence: 99%

“…As a new alloy material, high-entropy alloy (HEA) was proposed by Yeh et al in 2004 and is defined as an alloy system consisting of 5 to 13 isotonic ratios or near-isotonic ratios [12]. Compared with conventional alloys, HEAs have a high-entropy effect, hysteresis diffusion effect, and lattice distortion effect, which enable them to inhibit the formation of ordered intermetallic compounds during solidification and tend to form simple solid solution structures [5,[13][14][15][16][17][18]. Based on the four effects of HEAs, using them as coatings for laser cladding of aluminum alloy surfaces is beneficial to suppress the problems of poor coating quality caused by the dilution behavior of aluminum and, at the same time, improve the coating performance.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior and Comprehensive Evaluation of Al0.8CrFeCoNiCu0.5B0.1 High-Entropy Alloy in 3.5% NaCl Solution

Shi

Chen

et al. 2023

Lubricants

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In this study, Al0.8CrFeCoNiCu0.5B0.1 high-entropy alloy coating was prepared on the surface of 5083 aluminum alloy using laser cladding technology. The corrosion behavior of the coating and substrate in 3.5% NaCl solution was analyzed using experimental methods, including polarization curves and electrochemical impedance spectroscopy. The corrosion current density of Al0.8CrFeCoNiCu0.5B0.1 coating is 2.04 × 10−7 A/cm 2. The passivation range width reaches 2.771 V, and these polarization test results are superior to the substrate. The Al0.8CrFeCoNiCu0.5B0.1 coating exhibited selective corrosion behavior, with the Cu-rich FCC1 phase and Cr-poor phase being susceptible to corrosion, leading to localized pitting and intergranular corrosion traces, but the corrosion did not spread extensively. The intergranular distribution of Cu is the main reason for the intergranular corrosion trace features. In contrast, the substrate exhibited overall corrosion. The Nyquist plot of the Al0.8CrFeCoNiCu0.5B0.1 coating consisted of a single capacitive semicircle arc in the high-frequency region with a larger radius than the substrate. In conclusion, using the Al0.8CrFeCoNiCu0.5B0.1 high-entropy alloy as a coating can significantly improve the corrosion resistance of the 5083 aluminum alloy substrate.

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Microstructure evolution and properties of laser cladding Nb containing eutectic high entropy alloys

Cited by 33 publications

References 38 publications

Progress on the Properties of Ceramic Phase-Reinforced High-Entropy Alloy Composite Coatings Produced via Laser Cladding

Progress on the Properties of Ceramic Phase-Reinforced High-Entropy Alloy Composite Coatings Produced via Laser Cladding

Post-processing treatments–microstructure–performance interrelationship of metal additive manufactured aerospace alloys: A review

Corrosion Behavior and Comprehensive Evaluation of Al0.8CrFeCoNiCu0.5B0.1 High-Entropy Alloy in 3.5% NaCl Solution

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