A. A. Abaturova, D. V. Zaguliaev, A. A. Serebryakova
{"title":"The Influence of Electron-Beam Processing on the Formation of the Structure and Surface Properties of AK10M2N Alloy Destroyed under Tensile Conditions","authors":"A. A. Abaturova, D. V. Zaguliaev, A. A. Serebryakova","doi":"10.1134/s106378502470038x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Transmission electron-microscopy methods were used to study structural-phase transformations occurring after electron-beam treatment of samples of AK10M2N alloy subjected to uniaxial tension, and the defective substructure of the samples was studied. The studies were carried out on samples of AK10M2N aluminum alloy manufactured by electrical discharge cutting that had been subjected to electron-beam processing of the surface layer and samples in the cast state to identify the dynamics of the structural-phase state and differences in destruction mechanisms. Previously, the most rational mode for irradiating samples was identified (electron beam energy density 50 J/cm<sup>2</sup>, pulse duration 200 μs). A fractographic analysis of the fracture surface of samples in the cast state and subjected to electron-beam processing was performed. As a result of fractographic analysis, the mechanism of brittle fracture in cast samples of AK10M2N alloy was revealed. Foci of destruction in the structure of a brittle fracture in the form of intermetallic compounds of various shapes and structures have been identified. In the sample irradiated at an electron beam energy density of 50 J/cm<sup>2</sup> with a pulse duration of 200 μs, a fracture analysis was also carried out. The formation of an intercrystalline (intergranular) fracture after irradiation with an electron beam was revealed. A change was detected in the defective substructure of the AK10M2N alloy destroyed under tensile conditions (cast state and state formed after electron-beam processing). Electron-beam processing leads to the formation of a relatively thin surface layer represented by a submicronanocrystalline multiphase structure. Analysis of microelectron diffraction patterns made it possible to establish that the main phase located along the boundaries of crystallization cells is silicon. In addition, particles of complex composition Al<sub>23</sub>CuFe<sub>4</sub> were discovered in the volume of crystallization cells. Based on the research that was carried out, an assumption was made about the mechanism for increasing the strength of irradiated silumin (relative to the cast state).</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"41 1","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Technical Physics Letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1134/s106378502470038x","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Transmission electron-microscopy methods were used to study structural-phase transformations occurring after electron-beam treatment of samples of AK10M2N alloy subjected to uniaxial tension, and the defective substructure of the samples was studied. The studies were carried out on samples of AK10M2N aluminum alloy manufactured by electrical discharge cutting that had been subjected to electron-beam processing of the surface layer and samples in the cast state to identify the dynamics of the structural-phase state and differences in destruction mechanisms. Previously, the most rational mode for irradiating samples was identified (electron beam energy density 50 J/cm2, pulse duration 200 μs). A fractographic analysis of the fracture surface of samples in the cast state and subjected to electron-beam processing was performed. As a result of fractographic analysis, the mechanism of brittle fracture in cast samples of AK10M2N alloy was revealed. Foci of destruction in the structure of a brittle fracture in the form of intermetallic compounds of various shapes and structures have been identified. In the sample irradiated at an electron beam energy density of 50 J/cm2 with a pulse duration of 200 μs, a fracture analysis was also carried out. The formation of an intercrystalline (intergranular) fracture after irradiation with an electron beam was revealed. A change was detected in the defective substructure of the AK10M2N alloy destroyed under tensile conditions (cast state and state formed after electron-beam processing). Electron-beam processing leads to the formation of a relatively thin surface layer represented by a submicronanocrystalline multiphase structure. Analysis of microelectron diffraction patterns made it possible to establish that the main phase located along the boundaries of crystallization cells is silicon. In addition, particles of complex composition Al23CuFe4 were discovered in the volume of crystallization cells. Based on the research that was carried out, an assumption was made about the mechanism for increasing the strength of irradiated silumin (relative to the cast state).
期刊介绍：
Technical Physics Letters is a companion journal to Technical Physics and offers rapid publication of developments in theoretical and experimental physics with potential technological applications. Recent emphasis has included many papers on gas lasers and on lasing in semiconductors, as well as many reports on high Tc superconductivity. The excellent coverage of plasma physics seen in the parent journal, Technical Physics, is also present here with quick communication of developments in theoretical and experimental work in all fields with probable technical applications. Topics covered are basic and applied physics; plasma physics; solid state physics; physical electronics; accelerators; microwave electron devices; holography.
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