powderИзвестия вузов. Порошковая металлургия и функциональные покрытияPowder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya)1997-308X2412-8767НИТУ "МИСИС"10.17073/1997-308X-2024-1-81-94powder-870Research ArticleМатериалы и покрытия, получаемые методами аддитивных технологийMaterials and coatings fabricated using the additive manufacturing technologiesМеханические свойства стали с высоким содержанием азота, полученной методом селективного лазерного плавления с использованием механически легированных сфероидизированных порошковMechanical properties of high-nitrogen steel produced via selective laser melting using mechanically alloyed and spheroidized powdershttps://orcid.org/0000-0002-7371-558XОзерскойН. Е.OzerskoiN. E.

Николай Евгеньевич Озерской – научный сотрудник научно-образовательного центра «Аддитивные технологии»

Россия, 195251, г. Санкт-Петербург, ул. Политехническая, 29

Nikolai E. Ozerskoi – Research Associate of the Research and Educational Center “Additive technologies”

29 Polytekhnicheskaya Str., St. Petersburg 195251, Russian Federation

nikolaiozerskoi@yandex.ruhttps://orcid.org/0000-0002-7147-6239РазумовН. Г.RazumovN. G.

Николай Геннадьевич Разумов – к.т.н., заведующий лабораторией «Синтез новых материалов и конструкций»

Россия, 195251, г. Санкт-Петербург, ул. Политехническая, 29

Nikolai G. Razumov – Cand. Sci. (Eng.), Head of the Laboratory “Synthesis of new materials and structures”

29 Polytekhnicheskaya Str., St. Petersburg 195251, Russian Federation

n.razumov@onti.spbstu.ruСилинА. О.SilinA. O.

Алексей Олегович Силин – ведущий инженер научно-образовательного центра «Конструкционные и функциональные материалы»

Россия, 195251, г. Санкт-Петербург, ул. Политехническая, 29

Aleksey O. Silin – Leading Engineer of the Research and Educational Center “Structural and functional materials”

29 Polytekhnicheskaya Str., St. Petersburg 195251, Russian Federation

silin_ao@spbstu.ruhttps://orcid.org/0000-0003-2464-6706БорисовЕ. В.BorisovE. V.

Евгений Владиславович Борисов – к.т.н., ведущий научный сотрудник лаборатории «Синтез новых материалов и конструкций»

Россия, 195251, г. Санкт-Петербург, ул. Политехническая, 29

Evgenii V. Borisov – Cand. Sci. (Eng.), Leading Researcher of the Laboratory “Synthesis of new materials and structures”

29 Polytekhnicheskaya Str., St. Petersburg 195251, Russian Federation

evgenii.borisov@icloud.comhttps://orcid.org/0000-0002-5974-6654ПоповичА. А.PopovichA. A.

Анатолий Анатольевич Попович – д.т.н., профессор, директор Института машиностроения, материалов и транспорта 

Россия, 195251, г. Санкт-Петербург, ул. Политехническая, 29

Anatoly A. Popovich – Dr. Sci. (Eng.), Professor, Director of the Institute of Machinery, Materials and Transport

29 Polytekhnicheskaya Str., St. Petersburg 195251, Russian Federation

popovicha@mail.ruСанкт-Петербургский политехнический университет Петра ВеликогоРоссияPeter the Great St. Petersburg Polytechnic UniversityRussian Federation2024210220241818194Copyright © Озерской Н.Е., Разумов Н.Г., Силин А.О., Борисов Е.В., Попович А.А., 20242024Озерской Н.Е., Разумов Н.Г., Силин А.О., Борисов Е.В., Попович А.А.Ozerskoi N.E., Razumov N.G., Silin A.O., Borisov E.V., Popovich A.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://powder.misis.ru/jour/article/view/870

В последние годы развитие аддитивных технологий является одной из приоритетных задач отраслей. Аддитивные технологии позволяют, прежде всего, эффективно реализовывать любые конструкторские и инженерные идеи в таких высокотехнологичных отраслях, как авиастроение, двигателестроение, ракетостроение. Расширение номенклатуры стандартизованных материалов для аддитивных технологий будет способствовать их внедрению в массовое производство. Значительный интерес представляет возможность использования азотсодержащих жаропрочных порошковых сплавов для изготовления деталей летательных аппаратов сложной формы с применением аддитивных технологий. В данной работе описан полный цикл получения образцов из порошков сплавов со сверхравновесным содержанием азота методом селективного лазерного плавления (СЛП). Механическим легированием были получены 4 различных состава высокоазотистых сталей. Затем порошки этих сталей были обработаны методом плазменной сфероидизации для использования в процессе СЛП. Также методом СЛП были изготовлены образцы для механических испытаний. На каждом этапе процесса порошки подвергались детальному исследованию. Одним из наиболее важных параметров было содержание азота в получаемых порошках. С каждым этапом производства его доля снижалась, но оставалась на уровне сверхравновесного содержания 0,13–0,44 мас. %. Механические испытания показали, что сплавы, полученные методом СЛП, не уступают по своим свойст­вам сплавам, изготовленным по классическим металлургическим технологиям.

In recent years, the development of additive technologies has been one of the priority tasks in the sector. Primarily, additive technologies enable the effective implementation of various design and engineering ideas in high-tech industries, such as the aircraft industry, engine technology, and rocket engineering. The expanded range of standardized materials for additive technologies will facilitate their integration into large-scale production. Of significant interest is the potential use of nitrogen-containing heat-resistant powder alloys to produce complex-shaped aircraft parts using additive technologies. This paper describes the complete process of obtaining samples from powders of alloys with superequilibrium nitrogen content using the selective laser melting (SLM) method. Four different compositions of high-nitrogen steels were obtained through mechanical alloying. Subsequently, the powders of these steels underwent processing using the plasma spheroidization method to be utilized in the SLM process. The SLM method was also employed to produce samples for mechanical tests. Throughout each stage of the process, the powders were thoroughly analyzed. One of the most critical parameters was the nitrogen content in the resulting powders. At each subsequent production stage, its proportion decreased, yet it remained at the superequilibrium content level of 0.13–0.44 wt. %. The mechanical tests confirmed that the alloys fabricated by the SLM method are not inferior in terms of their properties compared to those obtained using classical metallurgical technologies.

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The authors declare that there are no conflicts of interest present.