Principles for developing grinding media with increased wear resistance. Part 1. Abrasive wear resistance of iron-based alloys

Koval, A. D.; Ефременко, В. Г.; Брыков, М. Н.; Andrushchenko, M. I.; Kulikovskii, R. A.; Efremenko, А. V.

doi:10.3103/s1068366612010072

Cited by 22 publications

(6 citation statements)

References 4 publications

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“…The mathematical model of electric contact surfacing of "shaft" type parts is developed on the basis of the numerical recurrence solution of the finite-difference form of static equilibrium conditions of selected elementary volumes [15][16][17][18]. The plastic deformation zone 1 1 2 2 is divided on the finite set of elementary volumes ( Figure 1).…”

Section: Theoretical Studiesmentioning

confidence: 99%

Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Berezshnaya

Gribkov

Kuznetsov

2016

Advances in Materials Science and Engineering

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The forming of coating at electric contact surfacing is considered. The mathematical model of the coating formation is developed. The method of numerical recurrent solution of the finite-difference form of static equilibrium conditions of the selected elementary volume of coating is used. This model considers distribution of thermal properties and geometric parameters along the thermal deformation zone during the process of electric contact surfacing by compact material. It is found that the change of value of speed asymmetry factor leads to increasing of the friction coefficient in zone of surfacing. This provides the forming of the coating of higher quality. The limitation of the technological capabilities of equipment for electric contact surfacing is related to the size of recoverable parts and application of high electromechanical powers. The regulation of the speed asymmetry factor allows for expanding the technological capabilities of equipment for electric contact surfacing. The nomograms for determination of the stress on the roller electrode and the finite thickness of the coating as the function of the initial thickness of the compact material and the deformation degree are shown.

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Section: Theoretical Studiesmentioning

confidence: 99%

Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Berezshnaya

Gribkov

Kuznetsov

2016

Advances in Materials Science and Engineering

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“…For three-body AW tests, the testing installation built in Zaporizhzhia Polytechnic National University (Zaporizhzhia, Ukraine) was used as described in [ 29 ]. The abrasive was silicon carbide with grit size of about 0.60–1.00 mm.…”

Section: Methodsmentioning

confidence: 99%

Abrasive Wear of High-Carbon Low-Alloyed Austenite Steel: Microhardness, Microstructure and X-ray Characteristics of Worn Surface

et al. 2021

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A high-carbon, high-silicon steel (1.21 wt% C, 2.56 wt% Mn, 1.59 wt% Si) was subjected to quenching from 900 and 1000 °C, resulting in microstructures containing 60 and 94% of retained austenite, respectively. Subsequent abrasive wear tests of quenched samples were performed using two-body abrasion and three-body abrasion testing machines. Investigations on worn surface and subsurface were carried out using SEM, XRD, and microhardness measurement. It was found that the highest microhardness of worn surface (about 1400 HV0.05) was achieved on samples quenched from 900 °C after three-body abrasion. Microhardness of samples after two-body abrasion was noticeably smaller. with a maximum of about 1200 HV0.05. This difference correlates with microstructure investigations along with XRD results. Three-body abrasion has produced a significantly deeper deformed layer; corresponding diffractograms show bigger values of the full width at half maximum parameter (FWHM) for both α and γ alone standing peaks. The obtained results are discussed in the light of possible differences in abrasive wear conditions and differing stability of retained austenite after quenching from different temperatures. It is shown that a structure of metastable austenite may be used as a detector for wear conditions, as the sensitivity of such austenite to phase transformation strongly depends on wear conditions, and even small changes in the latter lead to significant differences in the properties of the worn surface.

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“…According to Wang et al, fine and evenly dispersed M/A islands could contribute to the mechanical properties of low-carbon steel [51]. Other benefiting features of the TMCP/AC 550 structure are (a) a predominant cementite-free state of the grain boundaries and (b) the retained austenite (as boundary-allocated films and M/A islands) that can hamper crack propagation [53] and enhance the properties due to the TRIP-effect [54,55]. These features were especially conducive to the low-temperature impact behavior of steel.…”

Section: The Contribution Of Structural Factors To the Yield Strength...mentioning

confidence: 99%

Enhancing the Tensile Properties and Ductile-Brittle Transition Behavior of the EN S355 Grade Rolled Steel via Cost-Saving Processing Routes

Zurnadzhy,

Stavrovskaia,

Chabak

et al. 2024

Materials

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Structural rolled steels are the primary products of modern ferrous metallurgy. Consequently, enhancing the mechanical properties of rolled steel using energy-saving processing routes without furnace heating for additional heat treatment is advisable. This study compared the effect on the mechanical properties of structural steel for different processing routes, like conventional hot rolling, normalizing rolling, thermo-mechanically controlled processing (TMCP), and TMCP with accelerating cooling (AC) to 550 °C or 460 °C. The material studied was a 20 mm-thick sheet of S355N grade (EN 10025) made of low-carbon (V+Nb+Al)-micro-alloyed steel. The research methodology included standard mechanical testing and microstructure characterization using optical microscopy, scanning and transmission electronic microscopies, energy dispersive X-ray spectrometry, and X-ray diffraction. It was found that using different processing routes could increase the mechanical properties of the steel sheets from S355N to S550QL1 grade without additional heat treatment costs. TMCP followed by AC to 550 °C ensured the best combination of strength and cold-temperature resistance due to formation of a quasi-polygonal/acicular ferrite structure with minor fractions of dispersed pearlite and martensite/austenite islands. The contribution of different structural factors to the yield tensile strength and ductile–brittle transition temperature of steel was analyzed using theoretical calculations. The calculated results complied well with the experimental data. The effectiveness of the cost-saving processing routes which may bring definite economic benefits is concluded.

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Principles for developing grinding media with increased wear resistance. Part 1. Abrasive wear resistance of iron-based alloys

Cited by 22 publications

References 4 publications

Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Abrasive Wear of High-Carbon Low-Alloyed Austenite Steel: Microhardness, Microstructure and X-ray Characteristics of Worn Surface

Enhancing the Tensile Properties and Ductile-Brittle Transition Behavior of the EN S355 Grade Rolled Steel via Cost-Saving Processing Routes

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