The Formation of Composite Ti-Al-N Coatings Using Filtered Vacuum Arc Deposition with Separate Cathodes

Шулепов, И. А.; Kashkarov, Egor; Stepanov, I.B.; Сыртанов, М. С.; Sutygina, Alina; Shanenkov, Ivan; Obrosov, Aleksei; Weiß, Sabine

doi:10.3390/met7110497

Cited by 14 publications

(5 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3b). After applying a thin film with a thickness of about 0.2 μm to the samples using a magnetron sputterer and subsequent exposure to an electron beam, exothermic chemical reactions of the formation of the nitride phase can be initiated [13,14]. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Interactive methods for increasing wear resistance of cutting tool blades

Sharipov,

Abrorov

2023

E3S Web Conf.

View full text Add to dashboard Cite

In the scientific work, the features of the structure of the near-surface layer of high-speed steel R6M5, complex processing modified by the methods of the first ion-nitriding, ion alloying of the surface, and wear-resistant coating, its effect on the wear resistance of the tool during dry cutting of hard-to-cut chromium and its alloys are considered. One of the promising directions for hardening tools made of high-speed steel is the creation of layered structures on their surface with a gradient of physical and chemical properties between wear-resistant coatings and the base material. Among the methods for such surface modification is a special process based on the use of high-intensity pulsed beams of charged particles. Ion-nitriding treatment was carried out on the APP-2 unit, ion-alloying treatment was carried out on the unit, the latter with low friction coating. The advantage of this device is that it coats the Nb and Hf elements on the surface of the cutting tool, heats up to 10 6 deg/s in 5 μs, causing the two elements to diffuse into the cutting tool. The last treatment on the basis of reinforced cutting tools is coated with PLATIT π311 (TiAl)N. As a result, the stability of the cutting tool has increased by 3-4 times. The study was conducted at the Navoi Machine-Building Plant and conclusions were drawn.

show abstract

Section: Resultsmentioning

confidence: 99%

Interactive methods for increasing wear resistance of cutting tool blades

Sharipov,

Abrorov

2023

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…The evaluation of the change in the friction coefficient of ceramic inserts after various options for abrasive treatment and coating over time was carried out on a THT-S-AX0000 (CSEM, Neuchatel, Switzerland) tribometer during rotation of the ceramic inserts relative to a fixed ceramic ball with a diameter of 6 mm at a load of 1 N, a sliding speed of 10 cm/s and a test temperature of 800 • C [59].…”

Section: Investigation Of the Properties Of The Surface Layer Of Cera...mentioning

confidence: 99%

Influence of Surface Layer Condition of Al2O3+TiC Ceramic Inserts on Quality of Deposited Coatings and Reliability during Hardened Steel Milling

et al. 2022

View full text Add to dashboard Cite

The specific features of the destruction of tool ceramics, associated with structural heterogeneity and defects formed during diamond grinding, largely determine their reduced reliability (dispersion of resistance). This is most pronounced at increased heat and power loads on the contact surfaces and limits the industrial application of ceramic cutting tools. The surface layer of industrially produced Al2O3+TiC cutting inserts contains numerous defects, such as deep grooves and torn grains. During the milling of hardened steels of the 100CrMn type with increased cutting parameters, the “wear–cutting time” curves have a fan-shaped character with different wear rates. The resistance of the tool that was taken from one batch before reaching the accepted failure criterion has a significant variation in values (VarT is 30%). The study is aimed to evaluate the influence of the condition of the surface layer of Al2O3+TiC inserts processed by various types of abrasive treatments, such as diamond grinding, lapping and polishing, on the quality of the (TiAl)N and (TiZr)N coatings and the reliability of prefabricated end mills. The obtained “wear–cutting time” curves are characterized as closely intertwined bundles. The coefficient of resistance variation (the tool’s reliability) decreases by more than two times (14%). This can be used further in coating development to improve the performance of CCT.

show abstract

“…The regulation of composition, hardness, wear properties and morphology of the TiAlN coatings is achieved by the change of the cathode current, bias voltage on the sample, nitrogen gas pressure, magnetic filter elbow angle and magnetic intensity. Ivan A. Shulepov et al prepared a high Al-content TiAlN coating on high-speed substrates by adjusting the arc current during the filtered vacuum arc deposition process and the hardness of the TiAlN coating achieved at 36 ± 4 GPa [ 26 ]. Cao et al adjusted the substrate negative bias to prepare the bias-graded TiAlN coating on Ti 6 Al 4 V alloy substrates by FCVA at room temperature and the coating exhibited high hardness (32.08 GPa), adhesion and ideal toughness, along with excellent erosion resistance [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Tribological Behaviors of Super-Hard TiAlN Coatings Deposited by Filtered Cathode Vacuum Arc Deposition

Zhang

Yuan

et al. 2022

Materials

View full text Add to dashboard Cite

High hardness improves the material’s load-bearing capacity, resulting in the enhancement of tribological properties. However, the high hardness is difficult to achieve for TiAlN coating due to the transformation of the close-packed structure from cubic to hexagonal and the increase in the grain size when the Al content is high. In the present study, the ultrahard TiAlN coatings (hardness > 40 GPa) are successfully developed by filtered cathodic vacuum arc technology to study the effect of nitrogen flux rate on tribological behaviors. The highest hardness of 46.39 GPa is obtained by tuning the nitrogen flux rate to achieve the regulation of Al content and the formation of nanocrystalline. The stable fcc TiAlN phase is formed via the solid-phase reaction under a high nitrogen concentration, and more aluminum atoms replace the titanium atoms in the (Ti, Al)N solid solution. The high Al content of the Ti0.35Al0.65N coating has a nanocrystalline structure and the average crystalline size is 16.52 nm. The TiAlN coating deposited at a nitrogen flux rate of 60 sccm exhibits the best properties of a combination of microhardness = 2972.91 Hv0.5, H = 46.39 GPa, E = 499.4 Gpa, ratio H/E* = 0.093 and ratio H3/E*2 = 0.403. Meanwhile, the TiAlN coating deposited at 60 sccm shows the lowest average friction coefficient of 0.43 and wear rate of 1.3 × 10−7 mm3 N−1 m−1 due to the best mechanical properties.

show abstract

The Formation of Composite Ti-Al-N Coatings Using Filtered Vacuum Arc Deposition with Separate Cathodes

Cited by 14 publications

References 47 publications

Interactive methods for increasing wear resistance of cutting tool blades

Interactive methods for increasing wear resistance of cutting tool blades

Influence of Surface Layer Condition of Al2O3+TiC Ceramic Inserts on Quality of Deposited Coatings and Reliability during Hardened Steel Milling

Tribological Behaviors of Super-Hard TiAlN Coatings Deposited by Filtered Cathode Vacuum Arc Deposition

Contact Info

Product

Resources

About