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-2016-3-4-11powder-225Research ArticleТеория и процессы формования и спекания порошковых материаловTheory and Processes of Formation and Sintering of Powder MaterialsАНИЗОТРОПИЯ МЕХАНИЧЕСКИХ СВОЙСТВ ИЗДЕЛИЙ, ИЗГОТОВЛЕННЫХ МЕТОДОМ СЕЛЕКТИВНОГО ЛАЗЕРНОГО ПЛАВЛЕНИЯ ПОРОШКОВЫХ МАТЕРИАЛОВANISOTROPY OF MECHANICAL PROPERTIES OF PRODUCTS MANUFACTURED USING SELECTIVE LASER MELTING OF POWDERED MATERIALSПоповичА. А.PopovichA. A.

Доктор технических наук, профессор кафедры технологии и исследования материалов (ТИМ) СПбПУ, директор Института металлургии, машиностроения и транспорта СПбПУ.

195251, Санкт-Петербург, ул. Политехническая, 29. E-mail: popovicha@mail.ru

Popovich A.A. – Dr. Sci. (Tech), Prof.,  Department of material science and  technology of Peter the Great St. Petersburg University (SPbPU), Director of Institute of metallurgy, mechanical engineering and  transport SPbPU.

popovicha@mail.ruСуфияровВ. Ш.SufiiarovV. Sh.

Кандиат технических наук, ведущий научный сотрудник лаборатории «Функциональные материалы» СПбПУ

Sufiiarov V.Sh. – PhD, Leading Researcher of Laboratory of functional materials

vadim.spbstu@yandex.ruБорисовЕ. В.BorisovE. V.

Аспирант кафедры ТИМ, научный  сотрудник лаборатории «Функциональные материалы» СПбПУ

Borisov E.V. – Post-Graduate Student of Department of material science and  technology, Researcher of Laboratory of functional materials

evgenii.borisov@icloud.comПолозовИ. А.PolozovI. A.

Polozov I.A. – Student of Department of material science and  technology, Engineer of Laboratory of functional materials

igor.polozov@gmail.comМасайлоД. В.MasayloD. V.

Masaylo D.V. – Leading Engineer of Laboratory of functional materials

dmasaylo@gmail.comГригорьевА. В.GrigorievA. V.

Аспирант кафедры ТИМ СПбПУ, генеральный конструктор ОАО «Климов».

194100, Санкт-Петербург, ул. Кантемировская, 11. E-mail: klimov@klimov.ru

Grigoriev A.V. – Post-Graduate Student of Department of material science and  technology, SPbPU, Chief Designer of JSC «Klimov».

194100, Russia, St. Petersburg, Kantemirovskaya str., 11. E-mail: klimov@klimov.ru

klimov@klimov.ruСанкт-Петербургский политехнический университет Петра Великого, Санкт-ПетербургРоссияPeter the Great Saint-Petersburg Polytechnic University, Sankt-PeterburgRussian FederationСанкт-Петербургский политехнический университет Петра Великого; «Климов», ОАО, Санкт-ПетербургРоссияPeter the Great Saint-Petersburg Polytechnic University, Sankt-Peterburg; «Klimov», JSC, , Sankt-PeterburgRussian Federation20160410201603411Copyright © НИТУ "МИСИС", 20162016НИТУ "МИСИС"НИТУ "МИСИС"https://powder.misis.ru/jour/about/submissions#copyrightNoticehttps://powder.misis.ru/jour/article/view/225

The paper examines factors leading to anisotropy of properties in products manufactured using lasercusing, a technology consisting  in  selective  laser  melting  of  metal  powdered materials.  The results  obtained  when evaluating  mechanical  properties of specimens made of titanium alloys Ti–6Al–4V, VT6 and heat-resistant nickel alloy Inconel 718 in different directions are presented. The study covers the microstructure of compact specimens obtained using selective laser melting, and  describes dependence of their mechanical properties on workpiece orientation with relation to the unit working platform. The study of Ti–6Al–4V microsections showed that  the direction of the rectangular specimen grain structure matched the growth direction, whereas thin elements with a lattice structure were made with other thermal processes due to their smaller cross section. This affected crystallization conditions and  microstructure being formed: grain directions and  shapes changed depending on the lattice structure element inclination.

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