Nanostructuring of surface layers and production of nanostructured coatings as an effective method of strengthening modern structural and tool materials

Panin, V. E.; Сергеев, В. П.; Панин, А. В.; Pochivalov, Yu. I.

doi:10.1134/s0031918x07120113

Cited by 40 publications

(18 citation statements)

References 2 publications

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“…Similar phenomena have been detected in [12,17,34]. In these studies ultrasonic impact treatment by a special indenter was used for action on a surface.…”

Section: Role Of Steel Object Surface Condition On Behavior During Desupporting

confidence: 54%

Role of Steel Object Surface Condition on Behavior During Deformation

2015

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Comparative analysis is provided for specimen mechanical properties of steels 18KhGT and 20Kh with tensile testing in relation to surface treatment: grinding, polishing, nitriding, carburizing, and ion-plasma treatment. It is shown that surface condition has a considerable effect on specimen behavior during deformation. It is established that the most favorable effect applies to ion bombardment with low-energy ions recommended as an effective method for improving component structural strength.

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“…Similar phenomena have been detected in [12,17,34]. In these studies ultrasonic impact treatment by a special indenter was used for action on a surface.…”

Section: Role Of Steel Object Surface Condition On Behavior During Desupporting

confidence: 54%

Role of Steel Object Surface Condition on Behavior During Deformation

2015

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“…К настоящему времени накоплено значительное количество экспериментальных данных [25-29], свидетельствующих о существенном изменении механических свойств при уменьшении характерных размеров элементов структуры объекта менее 100 нм. Это позволяет предположить изменение механических параметров сервовитных пленок по сравнению с таковыми для меди в объеме [30]. Для выяснения этого факта проводилось инструментальное индентирование.…”

Section: рис 1 2d-визуализация 3d-unclassified

Mechanical Properties of Servovite Films Formed in During Friction Aqueous Solutions of Carboxylic Acids

Burlakova

Drogan

Тюрин

et al. 2018

Vestnik Donskogo gosudarstvennogo tehničeskogo universiteta

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Introduction. The effect of the organic component nature in the systematic series of monocarboxylic acids on the tribological characteristics of the brass-steel friction pair in aqueous solutions is described. Dependence of the mechanical-and-physical properties of the antifriction films formed during friction on the nature of the lubricating composition is investigated. The work objectives are to study the applicability of carboxylic acids as an antifriction lubricant component; to assess their effect on the mechanical properties of the servovite film formed under the brass – steel friction.Materials and Methods. Tribological studies of the brass-steel friction pair on the AE-5 end-type friction machine are carried out. Roughness parameters of the servovite film were determined through the optical profilometry. The microgeometry and the object structure at the nanoscale were considered using atomic force microscopy. The mechanical characteristics of the antifriction film were investigated using the instrument nanoindentation.Research Results. Tribological characteristics of the brass-steel tribocoupling and mechanical-and-physical properties of the servovite film formed during friction in the “brass – aqueous solution of carboxylic acid – steel” system were studied. It is established that the friction factor reduces when increasing the hydrocarbon radical length. The dimensional effects are found in the mechanical and tribological properties of the servovite film formed on the surface of the friction interaction in the carboxylic acids.Discussion and Conclusions. The study results show that the friction interaction on the wearing surface in the aqueous solutions of carboxylic acids forms a nanostructured servovite film which drops the friction factor. Its mechanical, physical and tribological parameters depend on the composition of the model lubricating medium. It is determined that the local mechanical-and-physical properties depend on the method of producing the servovite layer, the load and the size of the deformation zone. The results obtained can be used in the development of lubricants.

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“…Methods of intensive surface plastic deformation are currently being actively developed to provide hardening of metals and alloys due to the formation of submicro-and nanocrystalline structures in their surface layer. Such promising methods for surface nanostructuring of metal materials as frictional treatment by a sliding indenter [1,2] and ultrasonic treatment with a vibrating tool [3][4][5] have a high potential of practical applications. The most important factors of effective nanostructuring and strain hardening of a surface layer are as follows: 1) normal load sufficient for the formation a new rough surface, as well as multiplicity of the deformation effect for the accumulation of strain [6,7]; 2) inhomogeneous shear deformation with a sharp gradient [8]; 3) a high friction coefficient to enhance shear deformation [9,10]; 4) noncorrosive environment to prevent embrittlement by atmospheric oxygen followed by the failure of the diffusely active nanostructured layer [11].…”

Section: Introductionmentioning

confidence: 99%

Nanostructuring and surface hardening of structural steels by ultrasonic impact-frictional treatment

Makarov¹,

Savrai²,

Malygina³

et al. 2018

AIP Conference Proceedings

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Layered metal composites with high resistance to brittle fracture at low temperaturesAbstract. With two structural steels (the steels 50 and 09G2S) as examples, the paper studies the effectiveness of a new method of ultrasonic impact-frictional treatment (UIFT) for the hardening and nanostructuring of the surface layer with the variation of the tilt angle of the vibrating indenter and the treatment environment. It is demonstrated that treatment with tool tilt angles different from 90° and with the absence of a contact liquid results in the formation of a nanostructured surface layer with increased microhardness.

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Nanostructuring of surface layers and production of nanostructured coatings as an effective method of strengthening modern structural and tool materials

Cited by 40 publications

References 2 publications

Role of Steel Object Surface Condition on Behavior During Deformation

Role of Steel Object Surface Condition on Behavior During Deformation

Mechanical Properties of Servovite Films Formed in During Friction Aqueous Solutions of Carboxylic Acids

Nanostructuring and surface hardening of structural steels by ultrasonic impact-frictional treatment

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