Wear analysis of ultra-fine grain coated carbide tools in hard turning of AISI 420C stainless steel

Rosa, Guilherme; Souza, André J.; Possamai, Elizeu Vicente; Amorim, Heraldo J.; Neis, Patric Daniel

doi:10.1016/j.wear.2017.01.088

Cited by 16 publications

(4 citation statements)

References 19 publications

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“…Since the tribological performance depends not only on the coating but also on the substrate microstructure and chemical composition, as well as the deposition method, it is important to consider the whole system: substrate-interphasecoating. 1,[16][17][18] In some previous publications about coated martensitic stainless steels, tests have been performed to evaluate their tribological behaviour under mild conditions (low load and pressure and short duration) or for specific applications like improving the durability of the cutting edge of certain tools. 1,[16][17][18] Taking into account that the industry is interested in estimating the service life of the treated parts or components, the aim of this work is to evaluate the tribological behaviour, adhesion and abrasion resistance of two commercial coatings under severe conditions, AlCrN and TiAlN, deposited by means of cathodic arc PVD by Oerlikon Balzers, Argentina.…”

Section: Introductionmentioning

confidence: 99%

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Tribological behaviour of TiAlN and AlCrN coatings on stainless steel

Dalibon,

Maskavizan,

Brühl

2024

Surface Engineering

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TiAlN and AlCrN coatings are widely used in applications that require high stress resistance. In this work, the tribological behaviour of physical vapour deposition (PVD) TiAlN and AlCrN commercial coatings deposited on AISI martensitic stainless steel is studied. Microstructure of the coatings was analysed by X-ray diffraction (XRD), optical microscopy (OM) and scanning electron microscopy (SEM) and nanohardness was measured. Pin-on-disk and abrasive wear tests were performed. Adhesion was evaluated using Rockwell C Indentation and scratch test. The thickness of both coatings was approximately 3 µm. AlCrN lost 30 and 10 times less volume than TiAlN in pin-on-disk tests, under low and high loads, respectively. The steady friction coefficient value was also lower. This indicated that the AlCrN coating had a better performance under sliding conditions. On the other hand, the mass loss was similar for both coatings under abrasive wear, even under severe conditions. In the scratch tests, TiAlN coating failed at 60 N load and AlCrN coating at 70 N, the latter showing a higher value of critical load. The deformation was similar for both coatings as it could be observed in the profiles obtained by a mechanical profilometer at 60 N, however, AlCrN did not show film delamination. This enhanced performance can be attributed to higher fracture toughness and load carrying capacity, which not only improved the mechanical properties of the coating but also its adhesion to the stainless-steel substrate.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tribological behaviour of TiAlN and AlCrN coatings on stainless steel

Dalibon,

Maskavizan,

Brühl

2024

Surface Engineering

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“…The combination and quality of the deposited layers, together with the mechanical properties of the carrier material and the geometry of the cutting edge or chip breaker, have a very significant effect on the durability or cutting ability of the machining tool [2,15]. The construction of coatings as a multilayer has been known since the 1970s, with the possibility of a gradient design of the application of individual coating layers [16]. Today, these methods are considered standard and, for example, the problem of cracking is already practically solved by to the reduction of application temperatures [17].…”

Section: Introductionmentioning

confidence: 99%

Analyses of Tool Wear and Chip Type for Different Coated Carbide Inserts in Turning Hardened 1.6582 Steel

et al. 2022

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This article deals with the comparative wear of CNMG-coated sintered carbide indexable cutting inserts by several manufacturers when turning 1.6582 steel hardened to 40–44 HRC. The main goal will be to demonstrate the different course of wear by testing seemingly identical inserts for engineering companies, showing the connection between the course of wear and the production of waste in the form of chips. The monitored type of wear was the flank wear VBmax of a cutting tool depending on the length of the machining time. Additionally, the effect of cutting tool wear on chip production, i.e., their quantity, shape and size, was monitored. For the purpose of mutual comparison, uniform cutting conditions were chosen on the basis of previous experiments, ensuring the stability of the given cutting process. For flank wear analysis, optical and electron microscopes were used. Meanwhile, a portable roughness tester was used to analyze the roughness of the machined surface. It was found that the quality of the interconnected coating layers has a perceptible influence on wear rate of the evaluated cutting inserts. The relation between the degree and characteristics of wear on the one hand, and the properties of the produced chips that identify the effect of the difference in the deposition layers using EDX/SEM analysis on the other, foreshadows the importance of choose between products with similarly declared properties was found. The current assessment of cutting tool wear and the evaluation of the chip produced has significant economic potential for manufacturing companies seeking to minimize costs.

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“…Early hard coatings are mainly composed of binary nitrides, carbides, and oxides such as TiN [2], TiC [3] and Al 2 O 3 [4]. With the rapid development of material science and coating technology, the multi-component composite coatings and multilayer composite coatings, such as TiCN [5], AlCrN [6], TiAlN [7,8], CrSiCN [9], TiAlSiN [10][11][12] and so on [13], have attracted increasing research, which exhibit much higher surface hardness and more excellent tribological properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Zr Target Current on the Mechanical and Tribological Performance of MoS2–Zr Composite Lubricating Coatings

et al. 2020

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To improve the tribological properties of pure MoS2 coating, the MoS2–Zr composite lubricating coatings were prepared on the WC/TiC/Co carbide surface utilizing radio frequency magnetron sputtering method combining with multiple arc ion plating technology. The effects of different Zr target currents on the surface morphologies, roughness, Zr content, adhesive force, thickness, microhardness and tribological behaviors of the composite coatings were systematically investigated. Results showed that the properties of MoS2 coating can be remarkably enhanced through co-deposition of a certain amount of Zr. As the Zr target current increased, the Zr content, surface roughness, thickness, and micro-hardness gradually increased, while the adhesive force of coatings increased first and then decreased. The friction behaviors and wear modes of the composite coatings both varied obviously with the increase of Zr current. The mechanism was mainly attributed to the different components and mechanical properties of the coatings caused by various Zr current.

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Wear analysis of ultra-fine grain coated carbide tools in hard turning of AISI 420C stainless steel

Cited by 16 publications

References 19 publications

Tribological behaviour of TiAlN and AlCrN coatings on stainless steel

Tribological behaviour of TiAlN and AlCrN coatings on stainless steel

Analyses of Tool Wear and Chip Type for Different Coated Carbide Inserts in Turning Hardened 1.6582 Steel

Effect of Zr Target Current on the Mechanical and Tribological Performance of MoS2–Zr Composite Lubricating Coatings

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