Deposition of the Ti-Al coatings on different metallic substrates by mechanical alloying and subsequent laser treatment

Shahzad, Aamir; Zadorozhnyy, V.Yu.; Павлов, М.; Железный, М. В.; Chirkov, A. M.; Zagrebin, D.S.; Semenov, Dmitri; Khasenova, R.S.; Kaloshkin, S.D.

doi:10.1016/j.jallcom.2017.09.090

Cited by 15 publications

(4 citation statements)

References 31 publications

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“…We have previously conducted other MA deposition investigations related to the deposition of hydroxyapatite [25] and various other intermetallic coatings (TiAl, NiAl etc.) [26][27][28][29][30][31][32]. The MA deposition of the Ni x Ti x intermetallic compound on different metallic substrates reported here is an extension of our previous research.…”

Section: Introductionmentioning

confidence: 56%

Synthesis of Ni-Ti Coatings on Different Metallic Substrates by Mechanical Alloying and Subsequent Laser Treatment

Zadorozhnyy

Shahzad

Павлов

et al. 2018

Metals

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In this work, we proposed a novel mechanical alloying method to deposit Ni x-Ti x intermetallic coating on various metallic substrates using laser treatment. Three different substrates (Al-based alloy, Ti-based alloy, and hypoeutectoid steel) were used, and 50-70 µm thick Ni x Ti x coating was deposited during the process. For mechanical alloying, we used a self-constructed vibratory ball mill (single chamber) and for laser treatment, we used a "TrumpfTruDisk 1000" machine equipped with a four-dimensional control system "Servokon" designed specifically for experimental studies. Different laser beam intensities were used for laser operation. The cross-sectional microstructures of coatings were studied using a scanning electron microscope equipped with a Bruker energy-dispersive X-ray Spectrometer (EDS). Additional investigation of a cross-sectional area of one of the Ni x Ti x-coated samples was performed with field emission high-performance SEM and focused ion beam (FIB). Phase compositions of the obtained coatings, before and after laser treatment, were analyzed using X-Ray diffraction method. After the deposition process, the micro-hardness of the coatings was measured using a Vickers hardness tester. The structure and morphology of the obtained coatings were investigated.

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Section: Introductionmentioning

confidence: 56%

Synthesis of Ni-Ti Coatings on Different Metallic Substrates by Mechanical Alloying and Subsequent Laser Treatment

Zadorozhnyy

Shahzad

Павлов

et al. 2018

Metals

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“…Luo et al [12] found that laser surface treatment introduces a gradient nanostructured layer on the TiZrHfTaNb alloy and thus significantly improves the micro-hardness and wear resistance of the alloys. Shahzad et al [13,14] reported that a homogenous Ni-Al/Ti-Al intermetallic coating can be successfully deposited on the different metallic substrates through mechanical alloying and subsequent laser treatment. As a typical refractory metal with a high hardness and outstanding strength, molybdenum is a potential candidate as a coating material to enhance the wear resistance and surface hardness of soft aluminium and its alloys [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical properties of molybdenum-coated aluminium via laser cladding

Zheng

Chen

2023

Surface Engineering

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High-quality molybdenum coating has been successfully deposited on the pure aluminium substrate by high-velocity oxygen fuel spraying and subsequent laser remelting and laser cladding process. The microstructure, bonding strength, micro-hardness and wear resistance of the coating were systematically investigated. Results showed that the obtained coating exhibits a good metallurgical bonding interface as well as a dense microstructure with Al 8 Mo 3 , AlMo 3 and Al 5 Mo phases, which results in the significant improvement of the mechanical properties of the coating. The bonding strength is increased from 11 ± 1 to 57 ± 4 MPa after laser treatment. Micro-hardness of the coating (480 ± 30 HV) is observed to be increased by about 70% in comparison with the as-sprayed coating (281 ± 8 HV). The wear resistance of the Mo coating was also increased about five to six times by the laser remelting and cladding process.

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“…However, the theoretical thermal expansion coefficient of TiAl 3 is much higher than that of the titanium alloy matrix and is thus prone to thermal cracks [34,35]. In contrast, TiAl phase toughness is the best, but in a long-term hightemperature environment, the oxidation resistance of TiAl phase is insufficient [36]. Among the various methods available for preparing aluminum coatings, hot-dip aluminizing has garnered significant attention from researchers due to its advantages, such as a simple preparation process, low cost, and excellent coating adherence [37][38][39].…”

Section: Introductionmentioning

confidence: 99%

A Study on the High-Temperature Molten Salt Corrosion Resistance of Hot-Dip Aluminum/Carburizing Composite Coating on Ti65 Titanium Alloy

Wang,

2023

Coatings

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This article presents a new method for preparing a coating on Ti65 titanium alloy using a two-step procedure comprising hot-dipped aluminum and solid carburization. The effects of the carburization on the hot-dipped aluminum coating against the presence of a NaCl deposit at 810 °C were systematically studied. In this article, the microstructure, morphology, phase composition of the coating, and corrosion products were investigated using SEM (Scanning Electron Microscopy), EDS (Energy Dispersive Spectrometer), and X-ray diffraction. The results indicated that the corrosion resistance of the hot-dip aluminum/carburizing composite coating was not significantly enhanced with the hot-dip aluminum coating. This can be attributed to the formation of TiC and Ti3AlC after carburization, which promoted the formation of loose and unprotected TiO2 in the coating during molten salt corrosion. In addition, the oxidation of the carbon atom into CO2 led to a high concentration of pores in the coating, creating channels for NaCl to penetrate the coating and accelerate the corrosion rate.

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Deposition of the Ti-Al coatings on different metallic substrates by mechanical alloying and subsequent laser treatment

Cited by 15 publications

References 31 publications

Synthesis of Ni-Ti Coatings on Different Metallic Substrates by Mechanical Alloying and Subsequent Laser Treatment

Synthesis of Ni-Ti Coatings on Different Metallic Substrates by Mechanical Alloying and Subsequent Laser Treatment

Enhanced mechanical properties of molybdenum-coated aluminium via laser cladding

A Study on the High-Temperature Molten Salt Corrosion Resistance of Hot-Dip Aluminum/Carburizing Composite Coating on Ti65 Titanium Alloy

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