Formation of Fragments and Microbands During Deformation in Cu-Al and Cu-Mn Alloys with Different Concentrations of the Second Element
УДК 539.373,669.35:539.214
Abstract
The dislocation structure during deformation of polycrystalline FCC solid solutions of the Cu-Al and Cu-Mn systems was studied using transmission electron diffraction microscopy. The Al content in the Cu-Al alloys varied from 0.5 to 14 at.%, while the Mn content in the Cu-Mn alloys varied within 0.4 ... 25 at.%. Types of forming dislocation substructures were determined by analyzing the electron microscopic patterns obtained for thin foils of the studied alloys deformed to different degrees. Microbands densities, widths, and distances between microbands in the defect structures were measured for each sample. There were several stages during formation of fragmented and microband substructures found and proved experimentally to be dependent on the type and concentration of the alloying element. Only a fragmented substructure is formed in low-alloyed copper-aluminum alloys, and only a microband substructure is formed when the concentration of the second element, aluminum, increased. However, only a microband substructure is formed in Cu-Mn alloys during deformation regardless of the concentration of Mn atoms in such alloys.
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Courtney T.H. Mechanical Вehavior of Materials. Michigan: McGraw-Hill, 2000. 733 p.
Тришкина Л.И., Черкасова Т.В., Клопотов А.А. и др. Влияние состава на эволюцию дислокационной субструктуры в поликристаллических находящихся в слабоустойчивом состоянии сплавах Сu-Al при пластической деформации // Известия Алтайского государственного университета. 2021. Т. 117. № 1. С. 58-63. DOI: 10.14258/ izvasu(2023)1-09
Конева Н.А., Лычагин Д.В., Теплякова Л.А. Полосовая субструктура в ГЦК — однофазных сплавах. Дислокации и ротационная деформация тв6рдых тел // Сб. научных трудов. Л.: ФТИ, 1988. С. 103-113.
Тейлор Ф. Рентгеновская металлография. М.: Металлургия, 1963. 668 с.
Уманский Я.С. Рентгенография металлов и полупроводников. М.: Металлургия, 1969. 496 с.
Потекаев А.И., Тришкина Л.И., Клопотов А.А. и др. Эволюция дислокационной структуры в слабоустойчивых состояниях при деформации твердых растворов сплавов // Известия вузов. Физика. 2023. № 4. Т. 66. С. 115-122.
Классен-Неклюдова М.В. Механическое двойнико-вание кристаллов. М.: Изд-во АН СССР, 1960. 261 с.
Конева Н.А., Козлов Э.В., Тришкина Л.И. Эволюция дислокационной структуры при деформации поликристал-лических сплавов на основе меди и их пластичность //Фундаментальные проблемы современного материаловедения. 2016. Т. 13. С. 162-167.
Тришкина Л.И., Черкасова Т.В., Клопотов А.А., Потекаев А.И., Бородин В.И., Кулагина В.В. Параметры субструктуры в деформированных сплавах Cu-Mn с ГЦК решеткой // Известия вузов. Черная металлургия. 2023. № 1. Т. 66. С. 62-69.
Potekaev A.I., Trishkina L.I., Klopotov A.A. et al. The Role of Stacking Fault Energy of Cu-Al and Cu-Mn alloys During their Deformation in Low-Stability State // Russian Physics Journal. 2021. Vol. 65. № 6. P. 1012-1221.
Koneva N.A., Trishkina L.I., Cherkasova T.V et l. Evolution of Microstructure and its Parameters after Deformation of Polycrystalline Cu-Al Alloys with Different Stacking Fault Energy // Russian Physics Journal. 2021. 7. Vol. 64. Р. 1219-1224.
Трефилов В.И., Моисеев В.Ф., Печковский Э.П. и др. Деформационное упрочнение и разрушение поликристал-лических металлов / под ред. акад. В.И. Трефилова. Киев: Наукова Думка, 1989. 256 с.
Рыбин В.В. Большие пластические деформации и разрушение металлов. М.: Металлургия, 1986. 244 с.
Салтыков С.А. Стереометрическая металлография. М.: Металлургия, 1970. 376 с.
Конева Н.А., Черкасова Т.В., Тришкина Л.И. и др. Дислокационная структура и дислокационные субструктуры. Электронно-микроскопические методы измерения их параметров. Новокузнецк: СибГИУ, 2019. 136 с.
Koneva N.A., Trishkina L.I., Cherkasovа T.V. at al. Deformation Effect on Microtwinning and Crystal Lattice Distortion of Polycrystalline Cu-Al Alloys // Russian Physics Journal. 2021. № 11. Vol. 63. P. 1904-1908
Copyright (c) 2024 Людмила Ильинична Тришкина, Анатолий Анатольевич Клопотов, Татьяна Викторовна Черкасова, Александр Иванович Потекаев, Владислав Иванович Бородин
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