Methods of Obtaining and Properties of Wear-resistant Coatings Ti and N and Ti, Al and N

Говорун, Тетяна Павлівна; Pylypenko, О.V.; Hovorun, M. V.; Dyadyura, Kostiantyn

doi:10.21272/jnep.9(2).02026

Cited by 13 publications

(9 citation statements)

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“…Thus applied nitride coatings of TiAlN, TiCN, TiZrCN, TiZrN increase the period of stability of end mills with carbide inserts MK8 in 1.5-3.0 times in comparison with the cutting tool with TiN coating in the processing of billets of steel 5HNM, 18H18N10T and titanium alloy [8,[10][11].…”

Section: Literature Reviewmentioning

confidence: 95%

Improvement of the Physical and Mechanical Properties of the Cutting Tool by Applying Wear-resistant Coatings Based on Ti, Al, Si, and N

Говорун¹,

Khaniukov²,

Varakin³

et al. 2021

JES

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From the great variety of methods to improve the efficiency of cutting tools, it is necessary to highlight the methods of applying wear-resistant coatings, which in recent years are increasingly used. Applying wear-resistant coatings on the cutting tool can significantly increase its efficiency and intensify machining modes. Mechanisms of strengthening the wear-resistant coating for materials have been analyzed under the impact of technological parameters of coating condensation process on its structure parameters and mechanical properties, formation of single and multi-element coatings based on titanium nitrides, aluminum, and silicon, the transformation of coating properties by obtaining complex coatings, and principles formation of complex coatings designed for different cutting tools. The influence of the coating on the mechanical properties of high-speed steel is shown. In the magnetron sputtering coatings on P6M5 steel samples, the microhardness of the coatings is TiN – 20–24 GPa, AlN – up to 16 GPa, TiAlN – up to 35 GPa, AlTiN – up to 32 GPa, TiAlSiN – 32–37 GPa, including while the microhardness of the substrate of steel P6M5 – 6–9 GPa. The microhardness of TiAlN and TiAlSiN coatings applied on an instrumental basis is 1,5 – 1,9 times higher than the microhardness of TiN, AlN coatings. It was found that the wear intensity of P6M5 steel without coating is 6 times higher than with AlTiN, TiAlN, and TiAlSiN coating, 3 times higher than with TiN and AlN coating. The coated tool is characterized by increased reliability and higher stability and allows the processing process with higher cutting modes.

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Section: Literature Reviewmentioning

confidence: 95%

Improvement of the Physical and Mechanical Properties of the Cutting Tool by Applying Wear-resistant Coatings Based on Ti, Al, Si, and N

Говорун¹,

Khaniukov²,

Varakin³

et al. 2021

JES

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“…It is already known that doping welding connections, made basic type coated electrodes, allowing sufficient effectively regulate the mechanical properties of metals by changing the morphology [1,2,3], distribution and dispersion structural components [4,5,6,7,8,9,10,11], as well as changes in the composition [12,13,14,15] and condition of the grain boundaries [16,17]. Most researchers consider the influence of alloying elements on the properties of metals at single doping [5,6,7].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Most researchers consider the influence of alloying elements on the properties of metals at single doping [5,6,7]. Established [2,9,12,15,17] that the optimal system de-oxidation and weld metal recovery system is a "manganese-silicon" with optimal manganese 0.6-1.5% and 0.3-0.6% silicon. The authors [13,14,15,16,17] believe that to obtain high mechanical properties of the weld metal ratio should be done: Mn,%/Si,% ≥ 2, with content Mn = 0.6-1.5%.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Established [2,9,12,15,17] that the optimal system de-oxidation and weld metal recovery system is a "manganese-silicon" with optimal manganese 0.6-1.5% and 0.3-0.6% silicon. The authors [13,14,15,16,17] believe that to obtain high mechanical properties of the weld metal ratio should be done: Mn,%/Si,% ≥ 2, with content Mn = 0.6-1.5%. The positive effect of molybdenum on the impact toughness of low-alloy steels (for example, grades 09G2S, 17G1S), the authors of [3,6,15,16] attribute to its low absorption at the grain boundaries and strong absorption on the surface of the carbides, which is difficult growth of the latter at the grain boundaries.…”

Section: Literature Reviewmentioning

confidence: 99%

“…7) that sulfides, oxysulfides and silicates in molybdenum-doped welds consist of sulfur and oxygen compounds with manganese, iron and titanium, and have a globular shape of ~ 4-6 μm in diameter. Therefore, in this case, the binding of sulfur to the MnS compound reduces the likelihood of the formation of fusible Mo-MoS eutectics, which is known to enhance the resistance of welds against the formation of hot cracks [7,12,14,17]. X-ray microanalysis performed on an ORTEC (USA) microanalyzer showed that molybdenum is almost unrelated to non-metallic inclusions, ie the formation of Mo2C -type molybdenum carbide is unlikely but forms a solid solution with ferrite.…”

Section: Fig 6 Structure Of Perlite Grain Of Weld Metal On 20k Steel the Molybdenum Content Is 025% X400mentioning

confidence: 99%

See 2 more Smart Citations

Research of Microstructure of Molybden Doped Weldings of Oil and Gas Pipelines

Pandová

Rimár

Макаренко

et al. 2021

Management Systems in Production Engineering

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Still existing scientific, technical and technological developments to improve the quality of welded joints of metal pipe structures contain contradictions and uncertainty about the effects of alloying elements, such as molybdenum, mechanical and visco-plastic properties, as well as metallographic component joints. All this indicates the need for a systematic study of these problems for the development of rational metallurgical and technological measures to significantly improve the technological and corrosion-mechanical properties of weld metal. Metallographic studies, using laboratory equipment with high identifying ability, found that the doping of weld metal with molybdenum in the amount of 0.2-0.4% causes fragmentation of ferrite-pearlite structure, including carbides Mn and Fe, and also reduces the number and size of non-metallic inclusions – sulfides, oxides and silicates. Moreover, non-metallic inclusions have a dispersed appearance, which promotes plasticization of the structure, which directly increases the viscous-plastic characteristics and resistance of the metal joints to crack formation. Based on the results of metallographic research, the optimum content in the weld metal of the alloyed element – molybdenum, which is 0.2-0.4%, is determined.

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Physical-Mechanical Properties and Structural-Phase State of Nanostructure Wear-Resistant Coatings Based on Nitrides of Metals W and Cr

Dyadyura

Перерва

2019

Lecture Notes in Mechanical Engineering

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Methods of Obtaining and Properties of Wear-resistant Coatings Ti and N and Ti, Al and N

Cited by 13 publications

References 0 publications

Improvement of the Physical and Mechanical Properties of the Cutting Tool by Applying Wear-resistant Coatings Based on Ti, Al, Si, and N

Improvement of the Physical and Mechanical Properties of the Cutting Tool by Applying Wear-resistant Coatings Based on Ti, Al, Si, and N

Research of Microstructure of Molybden Doped Weldings of Oil and Gas Pipelines

Physical-Mechanical Properties and Structural-Phase State of Nanostructure Wear-Resistant Coatings Based on Nitrides of Metals W and Cr

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