Tribotechnical Properties of Composite Materials Produced from ShKh15SG Steel Grinding Waste

Роїк, Тетяна Анатоліївна; Гавриш, Олег Анатолійович; Вицюк, Ю. Ю.

doi:10.1007/s11106-019-00093-w

Cited by 8 publications

(15 citation statements)

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“…This waste is polluted with abrasive particles from grinding wheels, such as corundum particles. Therefore, such waste is usually not used in the subsequent production cycle [6,7]. However, this steel contains valuable alloying elements (Table 1).…”

Section: Preparatory Proceduresmentioning

confidence: 99%

“…To clean the grinding waste from abrasive particles, the method of magnetic separation was used, which allows separating the metal component from the non-metallic abrasive one [6,7]. The abrasive remains are 1-2% after the metal waste powders cleaning.…”

Section: Preparatory Proceduresmentioning

confidence: 99%

“…After cleaning, the metal powders were subjected to regenerative annealing at temperatures of 850-1000 • C in a hydrogen atmosphere to remove excess oxygen, which is present in the form of iron and alloying elements oxides. The oxygen content in the R6M5 steel waste powders is 0.8-1.0% before annealing, which negatively affects the structure and mechanical properties of materials [7]. In addition, an increased amount of oxygen requires an increase in pressing loads to achieve the proper density of the briquettes and also increases the press-forms wear.…”

Section: Preparatory Proceduresmentioning

confidence: 99%

“…The authors initiated research work on the regeneration and subsequent use of some types of ferrous and non-ferrous metal-based grinding waste to obtain new bearings, and promising results were obtained [5][6][7]. Such studies are one of the first steps in using grinding metal waste to make new antifriction composites.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, this study represents an innovative topic in the relevant field of knowledge, which was started by the authors of [5][6][7]. The complexities arise in grinding waste regeneration problems, development of the manufacturing processes, features of the anisotropic composites structure and their properties, the behavior of materials in the process of friction at high temperatures, loads, etc.…”

Section: Introductionmentioning

confidence: 99%

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Structure and Properties of New Antifriction Composites Based on Tool Steel Grinding Waste

et al. 2021

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This article investigates the impact of manufacturing technology on the structure, mechanical, and tribological properties of new antifriction composite materials based on R6M5 high-speed tool steel grinding waste. The characteristics of the new composite’s structure formation and its impact on properties after use of the established technological modes, including grinding waste regeneration, were illustrated. It was demonstrated that such technology is capable of ensuring microheterogeneous structure. The material’s structure consists of the metal matrix based on R6M5 high-speed tool steel waste and uniformly distributed CaF2 solid lubricant in the steel matrix. As compared to known iron-based composites, this structure promotes a high degree of mechanical and tribological properties. During tribological tests, anti-seize thin films of 15–20 μm are formed on the contacting surfaces. These constantly renewable films contribute to the high antifriction properties of the composite under the studied friction conditions and provide a self-lubricating effect. Such films fully cover both the material’s surface and the counterface. The formation of antifriction films results in the self-lubrication mode. The findings of the study open up the possibility of predicting the friction behavior of a composite at high temperatures by selecting the initial metal grinding waste to ensure the appropriate level of properties. The extensive use of various alloy steel-based industrial grinding waste in the re-production cycle would significantly contribute to resolving the global environmental problem of protecting the environment from pollution.

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Section: Preparatory Proceduresmentioning

confidence: 99%

Section: Preparatory Proceduresmentioning

confidence: 99%

Section: Preparatory Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations