{"title":"Fine Grinding Intensification Mechanism for Metal Powder Materials","authors":"M. V. Cherkasova, V. A. Arsentyev, I. D. Ustinov","doi":"10.1134/S0036029525700442","DOIUrl":null,"url":null,"abstract":"<p>The fine grinding of metal powders is shown to proceed simultaneously with particle aggregation. Here, destruction and aggregation are in dynamic equilibrium. To destroy metal particles during repeated deforming actions, it is necessary to prevent the relaxation of microcracks on the surface of these particles in the intervals between mechanical actions. Therefore, the fine grinding of metal particles without the substances that prevent microcrack relaxation is practically impossible. It is shown that the following two reagents, the mechanisms of influencing the process of which are different, should be used to intensify the fine grinding of metals: a metal defect formation aid at the initial stages of action on the particles to be ground and a dispersant in order to disaggregate the products of disintegration of these particles.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 10","pages":"1869 - 1876"},"PeriodicalIF":0.4000,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Metallurgy (Metally)","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0036029525700442","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
The fine grinding of metal powders is shown to proceed simultaneously with particle aggregation. Here, destruction and aggregation are in dynamic equilibrium. To destroy metal particles during repeated deforming actions, it is necessary to prevent the relaxation of microcracks on the surface of these particles in the intervals between mechanical actions. Therefore, the fine grinding of metal particles without the substances that prevent microcrack relaxation is practically impossible. It is shown that the following two reagents, the mechanisms of influencing the process of which are different, should be used to intensify the fine grinding of metals: a metal defect formation aid at the initial stages of action on the particles to be ground and a dispersant in order to disaggregate the products of disintegration of these particles.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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