The influence of non-vacuum electron-beam facing on the structure of Ti-Ta layers formed on the surface of VT1-0 alloy

Samoylenko, V V; Lenivtseva, O G; Polyakov, I A; Laptev, Ilia S.; Martyushev, Nikita V.

doi:10.1088/1757-899x/124/1/012117

Cited by 20 publications

(5 citation statements)

References 11 publications

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“…Its linear part can be of constant or variable diameter. In some areas (usually the head ones), it consists of several pipes (of the same or different diameters) laid in parallel in one corridor [11]. Shut-off valves are installed every 20-25 km of the route to shut off, if necessary (repair, accidents), individual sections of the gas pipeline.…”

Section: Methodsmentioning

confidence: 99%

Reliability assessment of main gas pipelines

Abduev

Malozyomov

Vlasov

2022

J. Phys.: Conf. Ser.

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The article is devoted to assessing and predicting the reliability of gas compressor stations and pipelines. The issues of equipment safety are discussed, which is also reflected in the linear control of main gas pipelines, which involves ensuring comprehensive and constant monitoring of the operating parameters of the system. It is shown that technically similar tasks are implemented with the help of automatic equipment, which is equipped with control rooms and compressor stations.

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Section: Methodsmentioning

confidence: 99%

Reliability assessment of main gas pipelines

Abduev

Malozyomov

Vlasov

2022

J. Phys.: Conf. Ser.

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“…In this range of high temperatures, two important points can be highlighted. These include polymorphic transformations in a metal with a change in the type of crystal latitude and the phenomenon of thermal deformation [7]. The last process is associated with the fact that a local metal segment is subjected to heating, which is experiencing structural changes in this area accompanied by an increase in volume.…”

Section: Methods For Suppressing Self Oscillation Processmentioning

confidence: 99%

Technological Quality Assurance of Hydraulic Cylinder Stock Manufacturing Based on High-Energy Impact on Product Surface

Maksarov¹,

Efimov²,

Keksin³

2018

Proceedings of the International Symposium “Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018)

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The article proposes a "stock"-an improved technological process of parts production. During the research it was found that the reason of the failure of hydraulic cylinder is charged rod surface, obtained after the grinding process. This factor leads to intensive wear of the sealing system and subsequent depressurization of hydraulic cylinder. It is possible to eliminate this problem by replacing the grinding process with mechanical treatment with improved dynamic characteristics. It will ensure the macro-and micro-geometric characteristics of surface. One of the main reasons for the deterioration of surface roughness and accuracy is the accumulation of self-oscillation energy, depending on the alternating stages of the chip formation process. The method of high-energy laser irradiation will allow reducing the influence of selfoscillation process on the macro-and micro-geometric parameters.

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“…This circumstance predetermined the search for new types and technologies of applying wear-resistant coatings to the working surface of piston rings. Many studies propose modern technologies for applying wear-resistant coatings based on the vacuum (PVD) and plasma technologies [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Improving the Wear Resistance of Piston Rings of Internal Combustion Engines when Using Ion-Plasma Coatings

Krasnyy

Maksarov

Maksimov

2020

KEM

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Modern designs of piston rings of internal combustion engines and wear-resistant coatings used for them are considered. It is noted that the upper (compression) ring undergoes the most intense wear. Among the traditionally used wear-resistant coatings of compression rings, galvanic chrome plating and thermal spraying with molybdenum are most often used. The paper proposes the use of the ion-plasma spraying method for applying hard wear-resistant coatings to the working surface of piston rings based on titanium and molybdenum nitrides. The specified method relates to vacuum coating technologies (PVD methods), in which layers of high-strength materials are sprayed directly onto the surface of the product. The present work aimed to carry out comparative tribotechnical tests of piston ring samples having hard coatings obtained by ion-plasma spraying and to compare them with traditional galvanic chromium plating. A technique has been developed for a comprehensive assessment of comparative tribological characteristics, including the critical load during testing, the specific load of seizing, the coefficients of friction, scoring resistance, and wear resistance. The test results of samples with the galvanic coating with chromium, ion-plasma spraying with titanium nitride, and molybdenum nitride are shown. In contrast, it is shown that samples with an applied ion-plasma coating surpass samples that are electrolytically chrome plated by all tribological parameters. The results obtained allow concluding that the ion-plasma coating of molybdenum nitride is promising for piston rings, as well as other critical parts of internal combustion engines.

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The influence of non-vacuum electron-beam facing on the structure of Ti-Ta layers formed on the surface of VT1-0 alloy

Cited by 20 publications

References 11 publications

Reliability assessment of main gas pipelines

Reliability assessment of main gas pipelines

Technological Quality Assurance of Hydraulic Cylinder Stock Manufacturing Based on High-Energy Impact on Product Surface

Improving the Wear Resistance of Piston Rings of Internal Combustion Engines when Using Ion-Plasma Coatings

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