Promoting bonding strength between internal Al-Si based gradient coating and aluminum alloy cylinder bore by forming homo-epitaxial growth interface

Guo, Ma; He, Pan; Wang, Haidou; Tian, He; Zhou, Licheng; Yong, Qingsong; Liu, Ming; Zhao, Haichao; He, Dongdong

doi:10.1016/j.matdes.2023.111764

Cited by 41 publications

(3 citation statements)

References 52 publications

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“…An APP technique was also used by Ma and coworkers [82] to achieve the formation of an Al-Si graded layer on the internal surface of cylindrical mechanical parts, such as pipe sections, made of aluminum, using a rotating plasma spraying gun, powered at about 45 kW, the scheme of which is reprinted in Figure 20, which could be inserted in the pipe cavity and was able to rotate while emitting the plasma flame, thus allowing the coating of the internal surfaces. The composition of the graded layer was changed during the deposition, starting with a pure SiAl layer and adding Cu and Fe in increasing quantities as the growth proceeded, with the aim of improving layer adhesion on the Al surface.…”

Section: Plasma Spraymentioning

confidence: 99%

“…An Ar plasma jet, generated using a high-voltag power source at 10 kHz, was directed at the polyimide substrate, on which a mixture o AlN powders and MTMS had been previously deposited, transforming the two separat AlN and MTMS phases into nanostructured material formed of AlN nanoparticle embedded in a polymer matrix. [82] with permission from Elsevier.…”

Section: Plasma Jetmentioning

confidence: 99%

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Recent Advances in the Plasma-Assisted Synthesis of Silicon-Based Thin Films and Nanostructures

Mandracci

Rivolo

2023

Coatings

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Silicon-based thin films and nanostructures are of paramount importance in a wide range of applications, including microelectronics, photovoltaics, large area sensors, and biomedicine. The wide accessibility of silicon and its relatively low cost have driven a continuous improvement of technology based on this element. Plasma technology has been widely used for the synthesis of coatings and nanostructures based on silicon. Moreover, it has made a fundamental contribution to continuous improvement of the physicochemical properties of silicon-based materials and allows the synthesis of nanometric structures with well-defined shapes and morphologies. In this work, we have reviewed the most interesting developments in plasma-assisted processes for the synthesis of Si-based materials, both inorganic and organic, in the last five years. Special attention has been paid to new techniques, or modifications of already-existing ones, that open up new possibilities for the synthesis of materials with new properties, as well as nanostructures with novel characteristics.

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Section: Plasma Spraymentioning

confidence: 99%

Section: Plasma Jetmentioning

confidence: 99%

Recent Advances in the Plasma-Assisted Synthesis of Silicon-Based Thin Films and Nanostructures

Mandracci

Rivolo

2023

Coatings

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“…Their unique characteristics, such as high mechanical strength, wear resistance, and the ability to withstand extreme temperatures, promote the use of cermets in several applications, such as forming, molding, electronic packing, and metal cutting [1][2][3]5,6]. In the last decades, cemented carbide materials have been usually deposited as thick coatings only by thermal plasma, plasma spraying techniques [7], or welding procedures [5,6]; however, the advent of additive manufacturing (AM) [8][9][10] has increased the panorama of suitable processing techniques. Among the AM categories [8,11], the Laser-Directed Energy Deposition (L-DED) [12] technique is one of the most employed and promising for fabricating good-quality cemented carbide coatings [13,14].…”

Section: Introductionmentioning

confidence: 99%

Effect of Post-Fabrication Heat Treatments on the Microstructure of WC-12Co Direct Energy Depositions

Morales,

Fortini,

Soffritti

et al. 2023

Coatings

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Laser-Directed Energy Deposition (L-DED) is an additive manufacturing technique that has lately been employed to deposit coatings of cemented carbides, such as WC-Co. During deposition, complex microstructural phenomena usually occur, strongly affecting the microstructural and mechanical behavior of the coatings. Post-fabrication heat treatments (PFHTs) may be applied to homogenize and strengthen the microstructure; nevertheless, to the best of the authors’ knowledge, just a few papers deepened the effect of these treatments on cemented carbides fabricated by additive manufacturing. This work evaluates the influence of four PFHTs on the microstructural evolution and hardness of L-DED WC-12Co. For each treatment, different combinations of solubilization time and temperature (between 30 and 180 min and from 400 °C to 700 °C, respectively) were adopted. The microstructure was investigated by optical and scanning electron microscopy equipped with energy-dispersive spectroscopy, whereas the mechanical properties were determined by Vickers hardness measurements. Based on the results, high microstructural heterogeneity in terms of WC particles, η-phase structures, and Co distribution was observed in the sample in the as-built condition. Some cracking defects were also observed in the samples, irrespective of the heat treatment conditions. Finally, a finer microstructure and a lower amount of brittle ternary η-phase, together with an increase in hardness (1030 ± 95 HV10), were found for the highest dwelling times (180 min) and for solubilization temperatures in the range of 500–600 °C.

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Microstructure and mechanical properties of Stellite 6 alloy coating metallurgically bonded to 304 stainless steel by DED-LB technology

Li,

Liu,

et al. 2024

J Mater Sci

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Promoting bonding strength between internal Al-Si based gradient coating and aluminum alloy cylinder bore by forming homo-epitaxial growth interface

Cited by 41 publications

References 52 publications

Recent Advances in the Plasma-Assisted Synthesis of Silicon-Based Thin Films and Nanostructures

Recent Advances in the Plasma-Assisted Synthesis of Silicon-Based Thin Films and Nanostructures

Effect of Post-Fabrication Heat Treatments on the Microstructure of WC-12Co Direct Energy Depositions

Microstructure and mechanical properties of Stellite 6 alloy coating metallurgically bonded to 304 stainless steel by DED-LB technology

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