Allerton Press

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Calculating the Contact Approach in a Cylinder upon Reindentation
Allerton Press - Tập 40 - Trang 569-572 - 2020
M. M. Matlin, A. M. Kaunov, A. I. Mozgunova, E. N. Kazankina, V. A. Kazankin
The paper discusses the regularities of the contact approach upon reindentation of an elastic cylinder into the flat surface of a part and its elastic–plastic deformation. It is shown that the value of the elastic approach upon repeat loading coincides with the elastic approach for the first loading.
Influence of nanosized carbon additives on the structure formation and tribological behavior of galvanic chrome coatings
Allerton Press - Tập 30 - Trang 94-100 - 2009
P. A. Vityaz’, V. I. Zhornik, R. G. Shtemplyuk, S. A. Kovaleva
The paper discusses the features of the structure formation of electrochemical chrome coatings on the introduction into the electrolyte composition of a disperse phase in the form of nanosized carbon additives (ultradispersed diamonds of denotation synthesis and diamond-graphite charge). It is shown that nanosized carbon additives encourage the formation of more dense coatings having fine-crystall...... hiện toàn bộ
Research of the Lifetime and Lubricant Properties of Greases for Rolling Bearings Operating in Space Conditions
Allerton Press - Tập 42 - Trang 431-437 - 2022
M. V. Prozhega, E. O. Reschikov, N. N. Smirnov
In this study, the lubricating properties and relative service life of plastic lubricants for work in space were studied. Grease relative lifetime and lubricity test methods and testing equipment were developed. Commercially available VNII NP-274, AMETIST, NIKA, IZUMRUD, and EFELE SG-394 greases are tested. The test procedure is based on testing the rolling bearing with a limited amount of lubrica...... hiện toàn bộ
Study of the geometric characteristics of friction surfaces of diamonds during polishing
Allerton Press - Tập 38 - Trang 30-36 - 2017
G. G. Vinokurov, P. P. Sharin, V. I. Popov
The surface of brilliant friction is studied during polishing on an industrial machine using the method of atomic-force microscopy. It has been established that the function of the distribution of profile coordinates is normal; the roughness of the friction surface is ~0.68–1.3 nm. To describe the formation of the profile for the brilliant friction surface statistically, as mathematical model base...... hiện toàn bộ
Properties of Puma and Buksol lubricants modified by inorganic additives of binary polyphosphates
Allerton Press - Tập 36 Số 3 - Trang 205-212 - 2015
В. И. Колесников, M. A. Savenkova, V. V. Avilov, Yu. F. Migal, И. В. Колесников
Study of Tribological Properties of Tallow Modified by Graphene and Expanded Graphite
Allerton Press - Tập 39 Số 4 - Trang 341-344 - 2018
E. I. Johns, Juozas Padgurskas, Audrius Žunda, Artūras Kupčinskas, I. N. Kavaliova
Tribological Characteristics and Wear Features of Powder Tin Bronze with the Addition of Ultrafine Oxides
Allerton Press - Tập 41 - Trang 295-299 - 2020
L. N. Dyachkova
The effect of the introduction of ultrafine particles of alumina, nickel oxides and a mixture of their oxides on the mechanical and tribological properties, structure and wear characteristics of powder tin bronze is studied. The increase in the content of alumina from 2 to 5 wt % leads to a decrease in strength by 1.2–1.4 times, and from 5 to 10 wt % it does not affect the change in the tensile st...... hiện toàn bộ
Physical and Chemical Explanation of the Choice of a Counterbody Material for Friction Pairs with Polymer Materials
Allerton Press - Tập 40 - Trang 337-341 - 2019
E. B. Sedakova, Yu. P. Kozyrev
Abstract—Experimental studies on the wear of polyether ether ketone (PEEK) on carbon steel 45 and alloyed steel 18Х2Н4МА have been carried out. It is shown that in the friction pair of PEEK—alloyed steel compared to PEEK—carbon steel creates a temperature regime that promotes the chemical interaction of polymer and nickel, which leads to a noticeable decrease in the upper limit of the range of ope...... hiện toàn bộ
Evolution of the Structure of a Near-Surface Layer of an Aluminum Matrix Composite of the Al–Sn–Fe System under Dry Friction Against a Steel Counterbody
Allerton Press - Tập 44 - Trang 135-143 - 2023
N. M. Rusin, A. L. Skorentsev, A. V. Chumaevskii
An effect of friction forces on the structure and composition of the near-surface layer of an Al–13Sn–5Fe (at %) composite containing a large amount of agglomerates of FeAl3 particles cemented with tin was studied. The investigated composite was prepared by sintering a mixture of Al, Sn, and Fe elemental powders in vacuum for 1 h at a temperature of 620°C and subsequent compaction in a closed die ...... hiện toàn bộ
Tribological behavior of frictional seismic dampers of pendulum type
Allerton Press - - 2007
Yu. N. Drozdov, V. A. Nadein, V. N. Puchkov
Frictional pendulum bearings have universal properties that can meet various requirements at service of buildings, bridges, and industrial constructions. The formulas for the average dimensionless wear rate and friction coefficient of the bearings are obtained. The use of the bearings as seismic dampers of shell drilling rigs is described and characteristics of the frictional pendulum bearings are...... hiện toàn bộ
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