Properties of intermetallic Ti Al based coatings deposited on ultrafine grained martensitic steel

Vardanyan, E. L.; Рамазанов, К. Н.; Nagimov, R. Sh; Nazarov, A. Yu

doi:10.1016/j.surfcoat.2020.125657

Cited by 20 publications

(12 citation statements)

References 38 publications

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“…The nanohardness and Young Modulus results are within the range of those reported in the literature [1,20,24]. Nevertheless, these values can vary depending on the system properties, deposition methods, substrates and other factors [14].…”

Section: Mechanical Propertiessupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

“…Finally, in the last few years, it was stated that nitriding improves coatings properties when they are deposited over martensitic steel due to an increase in the substrate microhardness [20]. Nevertheless, to our knowledge there are few papers about the system: transition metal nitrides coatings+nitrided martensitic steel [10,20]. This is very important given that the tribological performance is dependent on substrate, coating and counterpart properties, in addition to the tribological test parameters.…”

Section: Introductionmentioning

confidence: 99%

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Tribological behaviour of a hyperlox coating deposited over nitrided martensitic stainless steel

Bähler¹,

Prieto²,

Tuckart³

et al. 2022

Surf. Topogr.: Metrol. Prop.

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Martensitic stainless steels are often used in machine components, where are exposed to different solicitations that require good surface properties. Different treatments such as plasma nitriding or coating deposition could be used to improve their wear and corrosion resistance, even combining both methods. In this work, the tribological behaviour of a TiAlN coating with a top layer of TiN, called “Hyperlox Gold”, deposited over both nitrided and non-nitrided martensitic stainless steels by PVD PEMS (Physical Vapour Deposition Plasma Enhanced Magnetron Sputtering) was studied. Quenched and tempered AISI 420 martensitic stainless steel was used as base material. A group of samples were plasma nitrided and were subsequently coated. Microstructure of the nitrided layer and the coating were analysed by SEM and XRD. Nanohardness was measured with a Berkovich tip. Wear behaviour was evaluated using pin-on-disk tests (ASTM G99 standard) under three different loads (5 N, 7 N and 10 N) with an alumina ball as a counterpart. Adhesion was evaluated using dynamic conditions such as variable load scratch test and under static condition with Rockwell indentation tests (using 60 kg, 100 kg, and 150 kg). Overall thickness of the coatings was 3.7 μm and their hardness about of 32 ± 2 GPa. The nitrided layer was about 10 μm thick, with a hardness of 17 ± 1 GPa. The coating had good mechanical resistance in sliding adhesive wear conditions under low loads and good adhesion was revealed in a static condition. The presence of a nitrided layer improved the wear behaviour under high loads and the adhesion in dynamic conditions. Critical load was higher for the duplex sample than the coated samples. This work is important for the development of the Argentinian industry where the use of coatings is not largely extended, especially with martensitic stainless steels as substrates.

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Section: Mechanical Propertiessupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tribological behaviour of a hyperlox coating deposited over nitrided martensitic stainless steel

Bähler¹,

Prieto²,

Tuckart³

et al. 2022

Surf. Topogr.: Metrol. Prop.

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“…The higher concentrations of N in FeTi were not taken into consideration as its concentration in steels is typically very low. 10,39 The atomistic structures of all considered structures are shown in Fig. 1.…”

Section: Resultsmentioning

confidence: 99%

“…7,8 Experimental studies on material surface coatings show that, for example, the contact welding method improves the properties of coatings and further makes it possible to modify them, while ion nitriding in a glow charge with deposition of protective coatings increases adhesion properties and corrosion resistance. 9,10 However, finding conditions to achieve optimal mechanical characteristics of a coating requires a great amount of efforts both from technological and fundamental aspects for studying the features of structure and property formation.…”

Section: Introductionmentioning

confidence: 99%

The nitriding effect on the stability and mechanical properties of the iron titan phase: first-principles investigation

Ishkildin,

Kistanov,

Izosimov

et al. 2023

Phys. Chem. Chem. Phys.

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Deposition of a Multilayer Coating in a Gas-Metal Beam-Plasma Formation at Low Pressure

et al. 2021

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Properties of intermetallic Ti Al based coatings deposited on ultrafine grained martensitic steel

Cited by 20 publications

References 38 publications

Tribological behaviour of a hyperlox coating deposited over nitrided martensitic stainless steel

Tribological behaviour of a hyperlox coating deposited over nitrided martensitic stainless steel

The nitriding effect on the stability and mechanical properties of the iron titan phase: first-principles investigation

Deposition of a Multilayer Coating in a Gas-Metal Beam-Plasma Formation at Low Pressure

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