Characterization of ZrN coating low-temperature deposited on the preliminary Ar+ ions treated 2024 Al-alloy

Vasylyev, M. O.; Mordyuk, B.N.; Sidorenko, S. I.; Voloshko, S. М.; Burmak, А. P.; Kruhlov, І. O.; Закиев, В. И.

doi:10.1016/j.surfcoat.2018.12.010

Cited by 36 publications

(8 citation statements)

References 45 publications

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“…The tribological tests of sintered samples were carried out at an ambient temperature of 25 °C and relative humidity of 50 % at the Microngamma device. The structural diagram of the device is given in [30]; in the test mode of pin-on-disk at reciprocating friction -in [31]; at the friction machine in the test mode of ball-micro section (calo-test) -in [32].…”

Section: The Study Materials and Methodsmentioning

confidence: 99%

Determining the influence of ultra-dispersed aluminum nitride impurities on the structure and physical-mechanical properties of tool ceramics

Gevorkyan

Nerubatskyi

Chyshkala

et al. 2021

EEJET

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This paper considers features related to manufacturing the chromium oxide-based tool material. The process involved ultra-dispersed powders made of aluminum nitride. It has been established that the destruction of chromium oxide at high sintering temperatures is prevented through the reaction sintering of chromium oxide (Cr2O3) and aluminum nitride (AlN). It was established that the structure of the composite depends both on the temperature and the duration of hot pressing. Thermodynamic calculations of the interaction between Cr2O3 and AlN showed that this interaction begins at a temperature of 1,300 °C. In contrast to hot pressing in the air, no СrN and Сr2N compounds were formed in a vacuum. With increasing temperature, the content of Al2O3 in solid solution becomes maximum at a temperature of 1,700 °C in the case of hot pressing in the air while in vacuum the content of Al2O3 remains unchanged within the entire temperature range of 1,300–1,700 °C. When increasing the time of hot pressing to 30 minutes, the size of individual grains reaches 10 μm. It has been shown that in the sintering process involving Cr2O3 and AlN, the plasma-chemical synthesis produces the solid solution (Cr, Al)2O3 at the interphase boundary, which improves the mechanical properties of the material. The influence exerted on the quality of the machined surface of tempered hard steel when machining by the devised tool material based on chromium oxide with an optimal admixture of 15 wt % of ultra-dispersed aluminum nitride powder was investigated. It was determined that the quality of the machined hard steel surface improved compared to standard imported tool plates. It was established that the resulting tool material, in addition to relatively high strength and crack resistance, also demonstrates high thermal conductivity, which favorably affects the quality of the machined steel surface, given that lubricants and coolants are not used during the cutting process.

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Section: The Study Materials and Methodsmentioning

confidence: 99%

Determining the influence of ultra-dispersed aluminum nitride impurities on the structure and physical-mechanical properties of tool ceramics

Gevorkyan

Nerubatskyi

Chyshkala

et al. 2021

EEJET

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“…The favorable combination of properties between the reinforced surface layer and the base metal can be achieved by using various surface engineering processes. Extension of the service life of critical parts is provided by the methods of hardening using surface deformation [ 40 , 41 ], electrochemical Cr plating [ 42 , 43 ], chemical-thermal treatment [ 44 , 45 ], electrospark doping [ 46 , 47 ], laser doping [ 48 , 49 , 50 ], laser cladding [ 51 ], plasma hardening [ 52 , 53 ], thermal spraying [ 54 , 55 ], supersonic spraying [ 56 , 57 , 58 ], vacuum-arc deposition [ 59 , 60 , 61 ], formation of oxide and nitride coatings by combined methods [ 62 , 63 , 64 , 65 , 66 , 67 ], manual arc hardfacing [ 68 , 69 ], and flux-cored arc welding [ 70 , 71 , 72 , 73 , 74 , 75 , 76 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding

et al. 2022

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An analysis of common reinforcement methods of machine parts and theoretical bases for the selection of their chemical composition were carried out. Prospects for using flux-cored arc welding (FCAW) to restore and increase the wear resistance of machine parts in industries such as metallurgy, agricultural, wood processing, and oil industry were presented. It is noted that conventional series electrodes made of tungsten carbide are expensive, which limits their widespread use in some industries. The scope of this work includes the development of the chemical composition of tungsten-free hardfacing alloys based on the Fe-Mo-B-C system and hardfacing technology and the investigation of the microstructure and the mechanical properties of the developed hardfacing alloys. The composition of the hardfacing alloys was developed by extending the Fe-Mo-B-C system with Ti and Mn. The determination of wear resistance under abrasion and impact-abrasion wear test conditions and the hardness measurement by means of indentation and SEM analysis of the microstructures was completed. The results obtained show that the use of pure metal powders as starting components for electrodes based on the Fe-Mo-B-C system leads to the formation of a wear-resistant phase Fe(Mo,B)2 during FCAW. The addition of Ti and Mn results in a significant increase in abrasion and impact-abrasion wear resistance by 1.2 and 1.3 times, respectively.

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“…Low-energy ion irradiation of substrates has proven itself well in terms of increasing adhesion [12], including the creation of thin-film photoconverters for solar technology [3]. Today, the methods of ion assistance in the deposition of thin films on different substrates have become especially widespread.…”

Section: Introductionmentioning

confidence: 99%

Thermal and Ion Treatment Effect on Nanoscale Thin Films Scratch Resistance

Yanchuk¹,

Kruhlov²,

Закиев³

et al. 2022

Metallofiz. Noveishie Tekhnol.

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In this study, a microtribological characteristics of Ni(25 nm)/Cu(25 nm)/ Cr(25 nm) three-layer thin films fabricated using DC magnetron sputtering are explored using progressive scratch test. Four various types of thin films are examined and compared: as-deposited film, film after low-energy Ar + ion irradiation, film annealed at 450°С for 15 minutes in vacuum, and film after ion irradiation followed by vacuum annealing. Scratch tests are supplemented by structural (XRD) and chemical (AES) experimental studies. As figured out, the sample after ion irradiation followed by annealing demonstrated the best microtribological and wear resistance characteristics among all studied films. The highest scratch resistance, smooth scratch shape, the lowest value of peak tangential force as well as the absence of side cracks and film delamination are revealed for the sample after irradiation followed by annealing. The likely reasons of this behaviour are discussed.

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Characterization of ZrN coating low-temperature deposited on the preliminary Ar+ ions treated 2024 Al-alloy

Cited by 36 publications

References 45 publications

Determining the influence of ultra-dispersed aluminum nitride impurities on the structure and physical-mechanical properties of tool ceramics

Determining the influence of ultra-dispersed aluminum nitride impurities on the structure and physical-mechanical properties of tool ceramics

Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding

Thermal and Ion Treatment Effect on Nanoscale Thin Films Scratch Resistance

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