Coating of metals with intermetallics by mechanical alloying

Zadorozhnyy, V.Yu.; Kaloshkin, S.D.; Kaevitser, E. V.; Romankov, S.

doi:10.1016/j.jallcom.2011.01.164

Cited by 40 publications

(17 citation statements)

References 8 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: 55%

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: 55%

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 our previous works we investigated intermetallic coatings preparation on different metallic substrates [44][45][46]. In our current research we use similar methods and regimes of the MA treatment for the synthesis of the Ca 10 (PO 4 ) 6 (OH) 2 and (Ca 10 (PO 4 ) 6 (OH) 2 )+Ti coatings.…”

Section: Resultsmentioning

confidence: 99%

“…In our previous works [44][45][46], we already used the MA method for the deposition of Ni-Al coatings on different metals substrates (including Ti substrate) and the results were rather successful. In the present work, we focus on the deposition of HA and HA+Ti coatings on Ti substrates by using the mechanical alloying method in planetary and vibratory ball mills.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Synthesis of the hydroxyapatite coatings on the Ti substrates by mechanical alloying

Zadorozhnyy

Kaevitser

Kopylov³

et al. 2015

Surface and Coatings Technology

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“…It results in the formation of numerous voids and a number of microstructure features starting from those solidified as amorphous, through fine crystalline, up to coarse crystalline ones. A newly emerging deposition method based on mechanical embedding (ME) of powder particles into metallic substrates during their mechanical milling seems to be fully capable of competing with the APS method with respect to the thickness of the deposited coatings [8,9,10,11,12,13,14]. In spite of the high surface roughness inherently connected with the mechanism of their build up, i.e., the local impact of rotating balls used in milling vials against substrate platelets, the ME coating’s microstructure should be much more uniform than those obtained with the APS method.…”

Section: Introductionmentioning

confidence: 99%

Microstructure of Coatings on Nickel and Steel Platelets Obtained by Co-Milling with NiAl and CrB2 Powders

et al. 2019

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Metal matrix composite coatings are developed to protect parts made from materials susceptible to wear, like nickel alloys or stainless steel. The industry-established deposition method is presently an atmospheric plasma spraying method since it allows the production of both well-adhering and thick coatings. Alternatively, similar coatings could be produced by co-milling of ceramic and alloyed powders together with metallic plates serving as substrates. It results in mechanical embedding of the powder particles into exposed metallic surfaces required coatings. The present experiment was aimed at the analysis of microstructure of such coatings obtained using NiAl and CrB2 powders. They were loaded together with nickel and stainless steel platelets into ball mill vials and rotated at 350 rpm for up to 32 h. This helped to produce coatings of a thickness up to ~40 µm. The optical, scanning, and transmission electron microscopy observations of the coatings led to conclusion that the higher the rotation speed of vials, the wider the intermixing zone between the coating and the substrate. Simultaneously, it was established that the total thickness of the coating deposited at specified conditions is limited by the brittleness of its nanocrystalline matrix. An increase in the hardness of the substrate results in a decrease of the intermixing zone. The above results indicate that even as the method based on mechanical embedding could so far produce thinner coatings than the plasma spraying, in the former case they are characterized by a more uniform nanocrystalline matrix with homogenously distributed fine ceramic particles.

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Coating of metals with intermetallics by mechanical alloying

Cited by 40 publications

References 8 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

Synthesis of the hydroxyapatite coatings on the Ti substrates by mechanical alloying

Microstructure of Coatings on Nickel and Steel Platelets Obtained by Co-Milling with NiAl and CrB2 Powders

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