Multilayered ZrN/CrN coatings with enhanced thermal and mechanical properties

Maksakova, O. V.; Simões, Sónia; Pogrebnjak, A.D.; Бондар, О. В.; Kravchenko, Yaroslav; Kołtunowicz, Tomasz N.; Shaimardanov, Zh. K.

doi:10.1016/j.jallcom.2018.10.342

Cited by 70 publications

(26 citation statements)

References 59 publications

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“…Current advances in the deposition technologies indicate that multilayer coatings with different composition and excellent physical-mechanical and tribological properties can be produced using PVD and CVD methods [78][79][80][81][82]. Thus, there are many possibilities for modifying the characteristics of multilayer compositions but the synthesis of the coating structure should be carried out with high accuracy [83,84].…”

Section: General Features Of Multilayer Coatingsmentioning

confidence: 99%

“…Structural features, physical-mechanical and tribological properties of multilayer structures can be reviewed in detail on the refractory and transition metals (Ti, Cr, Zr and Mo) based nitride coatings [2,10,29,82,108,118,119]. TiN/ZrN, TiN/MoN and CrN/MoN coatings were deposited on the steel substrates by the vacuum-arc evaporation method [8,99,100,120].…”

Section: Structure Phase Composition Mechanical and Tribological Prmentioning

confidence: 99%

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Nanocomposite Multilayer Binary Nitride Coatings Based on Transition and Refractory Metals: Structure and Properties

2019

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One area of constant interest in many fields of industry is development of functional multilayer coatings that possess excellent performance characteristics. That is why in our brief review the results of studies of structure and properties of multilayer structures based on binary nitrides of transition or refractory metals obtained by various physical-vapor deposition (PVD) techniques are presented. The influence of substrate temperature, substrate bias voltage, bilayer thickness and interface boundaries on the structure of coatings and their properties, such as hardness, plasticity, wear and corrosion resistance, are discussed in detail. This review may be useful for students and growing community of researchers interested in the synthesis-structure-properties relationship in multilayer coatings based on metal nitrides.

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Section: General Features Of Multilayer Coatingsmentioning

confidence: 99%

Section: Structure Phase Composition Mechanical and Tribological Prmentioning

confidence: 99%

Nanocomposite Multilayer Binary Nitride Coatings Based on Transition and Refractory Metals: Structure and Properties

2019

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“…In order to further improve the wear resistance of hardfacing alloys under severe working conditions, researchers have explored the properties of Fe-based hardfacing alloys reinforced by the precipitation of micrometric or nanometric secondary hard phases [16][17][18][19][20][21][22][23][24]. Besides, boron was also added into the iron base hardfacing alloy to improve their hardness and wear resistance due to the formation of harder carbides and borides.…”

Section: Introductionmentioning

confidence: 99%

Effect of B Content on Microstructure and Wear Resistance of Fe-3Ti-4C Hardfacing Alloys Produced by Plasma-Transferred Arc Welding

Zong

Guo

et al. 2019

Coatings

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The Fe-3Ti-xB-4C (x = 1.71, 3.42, 5.10, 6.85 wt. %) hardfacing alloys are deposited on the surface of a low-carbon steel by plasma transferred arc (PTA) weld-surfacing process. Microstructure, hardness and wear resistance have been investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), Rockwell hardness tester and abrasive wear testing machine, respectively. The results show that the microstructure in all alloys is composed of austenite, martensite, Fe23(C,B)6, Ti(C,B) and Fe2B. The volume fraction of eutectic borides and Ti(C,B) carbides increases with increasing B content. Many brittle bulk Fe2B phase arises when the boron content increases to 6.85%, which causes the formation of microcracks in the hardfacing layer. The microhardness of the hardfacing alloys is significantly improved with the B addition, however, the wear resistance of hardfacing alloys increases firstly and then decreases with increasing of B content. The hardfacing alloy with the 5.10% B content has the best wear resistance, which is attributed to high volume fraction of eutectic borides and fine Ti(C,B) particles distributed in the austenite and lath martensite matrix with high hardness and toughness. The formation of brittle bulk Fe2B particles in the hardfacing alloy with the 6.85% B leads to the fracture and spalling of hard phases during wear, thus, reducing the wear resistance.

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“…The ZrN/CrN multilayers were fabricated by the cathodic-arc method in a Bulat 6 deposition system [8], which composed of a vacuum chamber, vacuum pumping system, nitrogen supply system that worked at pressure between 10 -5 to 10 -2 Pa, arc power supplies that produced the current from 50 to 200 A, substrate power supply that ensured constant negative bias voltage and automatic rotation system for substrate holder. Within the working chamber, there was an electrode formed by an anode, where the steel substrates were placed, and cathodes with the Zr and Cr targets.…”

Section: Methodsmentioning

confidence: 99%

Study of Advanced Nanoscale ZrN/CrN Multilayer Coatings

Maksakova

Pogrebnjak

Береснев

et al. 2019

EEJP

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The scientific interest in the investigation of nitride composites as protecting materials in tool and machining industries intensively increases. The good oxidation resistance of CrN single-layer films and high melting point, good chemical and thermal resistance of ZrN compound are motive factors for designing of multilayer composites composed of these metal nitrides. The suggested advantages of ZrN/CrN multilayer coatings as structural materials are the high-temperature resistance, high density and extreme hardness compared to the metal-nitride systems. Experimental ZrN/CrN multilayer coatings were deposited on AISI 321 steel substrates by using a cathodic arc evaporation device equipped with two high-purity metal Cr and Zr targets. Structural, chemical and morphological characteristics together with mechanical properties of multilayer composites were analyzed by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy and Vickers hardness tester. SEM analysis revealed an increase of roughness and concentration of the droplets on the surface of the coatings when negative bias potential decreased to -70 V. The results of data obtained from the X-ray analysis showed (200) and (111) plane for ZrN and Cr2N phases as the most intense. The peak positions of ZrN were shifted towards lower diffraction angles comparing with bulk values and indicated a decrease of the inter-planar distance and formation of compressive stresses. The calculated lattice strain values in the ZrN were higher than those of the CrN, indicated a greater presence of dislocations and defects in the lattice of ZrN. The averaged crystallite sizes in ZrN and CrN layers were 11-14 and 7-12 nm, respectively. The maximum value of the Vickers microhardness was found to be 6600HV0.01 that is 2.1 and 1.8 times greater than the corresponding values of binary CrN and ZrN coatings.

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Multilayered ZrN/CrN coatings with enhanced thermal and mechanical properties

Cited by 70 publications

References 59 publications

Nanocomposite Multilayer Binary Nitride Coatings Based on Transition and Refractory Metals: Structure and Properties

Nanocomposite Multilayer Binary Nitride Coatings Based on Transition and Refractory Metals: Structure and Properties

Effect of B Content on Microstructure and Wear Resistance of Fe-3Ti-4C Hardfacing Alloys Produced by Plasma-Transferred Arc Welding

Study of Advanced Nanoscale ZrN/CrN Multilayer Coatings

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