Evaluation of DC-MS and HiPIMS TiB2 and TaN coatings as diffusion barriers against molten aluminum: An insight into the wetting mechanism

Ramos-Masana, A.; Colominas, Carles

doi:10.1016/j.surfcoat.2019.06.031

Cited by 19 publications

(3 citation statements)

References 60 publications

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“…In general, these composites consist of ceramic particles bonded with a metal matrix. However, it is a great challenge to design and fabricate cermet composites [1][2][3] since metals contain metallic bonds while ceramics mainly comprise ionic and covalent bonds. To improve the interface bonding strength between ceramic particles and metal, the surface metallization of ceramic particles is an effective method [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Water Lubrication of Al-Cu Composites Reinforced by Nickel-Coated Si3N4 Particles

Peng,

Dai,

Huang

et al. 2024

Coatings

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Silicon nitride (Si3N4) particle-reinforced aluminum–copper (Al-Cu) alloy matrix composites have been prepared in our previous works and experimental result shows that they can be used as a new kind of water-lubricated materials. However, the wettability between Si3N4 ceramics and Al-Cu alloys is poor and the manufacturing process is usually carried out at a high temperature of 1100 °C. To overcome this shortcoming, a layer of nickel was deposited on the surface of Si3N4 particles, forming a core-shell structure. Thus, the interface bonding property between Si3N4 and Al-Cu alloy can be improved and the lower sintering temperature can be applied. Si3N4/Al-Cu alloy composites with different proportions of Ni-coated Si3N4 were fabricated by powder matrix metallurgy technology at 800 °C, and the water lubrication properties of the composite were investigated. The experimental results show that with the increase in the particle content (10 wt%–40 wt%), the microhardness of the composites increased first and then decreased, while the porosity increased continuously. A low friction coefficient (0.001–0.005) can be achieved for the composites with the lower particle content (10 wt%–20 wt%). The major wear mechanism changes from the mechanically dominated wear during the running-in process to the tribochemical wear at the low frictional stage.

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Section: Introductionmentioning

confidence: 99%

Water Lubrication of Al-Cu Composites Reinforced by Nickel-Coated Si3N4 Particles

Peng,

Dai,

Huang

et al. 2024

Coatings

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“…When these elements combine with nitrogen, it generate nitrides, which are extremely hard and have very high melting temperatures [1,2]. Because of this, transition metal nitrides are especially helpful in high-temperature and high-wear environments, such as cutting tools, molds, and engine parts [3,4].Transition metal nitride coatings are deposited using a variety of deposition methods. The physical vapor deposition (PVD) approach stands out among various deposition methods due to its layer uniformity, improved morphological properties, and excellent adhesion to the substrate [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Ta/TaN Multilayer Thin Film Coatings with HiPIMS Technique for Tribological Applications

Polat¹,

Efeoğlu²,

Maleque³

et al. 2023

Preprint

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The aim of this work is to synthesis and characterize the Ta/TaN multilayer thin film coatings on 52100 tool steel under three different levels of N2 gas flow rate. The High Power Impulse Magnetron Sputtering (HiPIMS) technique was used for the deposition of Ta/TaN thin film multilayers on the substrate. Microstructure, coating thickness, composition, hardness and tribological properties of Ta/TaN multilayer coatings were characterized using scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), microhardness tester and pin-on-disc tester, respectively. Adhesion property was evaluated via scratch testing of the thin film thin film layer. The lowest coefficient of friction was observed with the thin film layer of higher N2 gas flow rate due to the highest adhesion value of the coating on the surface. The obtained results on hardness, adhesion and coefficient of friction properties demonstrated that this Ta/TaN multilayer thin film coating can be used for tribological applications.

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“…Aluminum alloys also reduce most oxides [ 4 , 30 , 31 ]. Therefore, coatings applied on steel are sufficient only for a short period of contact with the melt [ 1 , 13 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Corrosion-Resistant Steel–MgO Composites as Refractory Materials for Molten Aluminum Alloys

et al. 2020

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In this study, a novel metal matrix composite based on 60 vol% 316L stainless steel and 40 vol% MgO manufactured by powder metallurgy technology was developed. The corrosion resistance of the developed steel–MgO composite material against molten aluminum alloy AlSi7Mg0.3 was investigated by means of wettability tests and long-term crucible corrosion tests. The wettability tests were carried out using the sessile drop method with the capillary purification technique in a hot-stage microscope (HSM). Static corrosion tests were performed in molten aluminum alloy at 850 °C for 168 h to evaluate the impact of pre-oxidation of the composite surface on the corrosion resistance. The pre-oxidation of steel–MgO composites was carried out at 850 and 1000 °C for 24 h, based on preliminary investigations using thermogravimetry (TG) and dilatometry. The influence of the pre-oxidation on the composite structure, the corrosion resistance, and the phase formation at the interface between the steel–MgO composite and aluminum alloy was analyzed using SEM/EDS and XRD. The impact of the steel–MgO composite material on the composition of the aluminum alloy regarding the type, size, and quantity of the formed precipitations was investigated with the aid of ASPEX PSEM/AFA and SEM/EBSD. It was revealed that the pre-oxidation of the steel–MgO composite at 1000 °C induced the formation of stable MgO-FeO solid solutions on its surface, leading to a significant increase of long-term corrosion resistance against the liquid aluminum alloy.

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Evaluation of DC-MS and HiPIMS TiB2 and TaN coatings as diffusion barriers against molten aluminum: An insight into the wetting mechanism

Cited by 19 publications

References 60 publications

Water Lubrication of Al-Cu Composites Reinforced by Nickel-Coated Si3N4 Particles

Water Lubrication of Al-Cu Composites Reinforced by Nickel-Coated Si3N4 Particles

Ta/TaN Multilayer Thin Film Coatings with HiPIMS Technique for Tribological Applications

Corrosion-Resistant Steel–MgO Composites as Refractory Materials for Molten Aluminum Alloys

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