Methods for Defining the Concentration of Nanostructured Powders in Protective Gas and its Effect on the Microstructure of Deposit Metal

Библиографические подробности
Источник:Applied Mechanics and Materials: Scientific Journal
Vol. 770 : Urgent Problems of Up-to-Date Mechanical Engineering.— 2015.— [P. 28-33]
Автор-организация: Национальный исследовательский Томский политехнический университет (ТПУ) Юргинский технологический институт (филиал) (ЮТИ) Кафедра сварочного производства (КСП)
Другие авторы: Kuznetsov M. A. Maksim Aleksandrovich, Barannikova S. A., Zernin E. A. Evgeny Aleksandrovich, Filonov A. V. Andrey Vladimirovich, Kartcev D. S.
Примечания:Title screen
The effect on the deposited metal structure of nanostructured modifiers introduced into the weldpool has been studied. Methods have been developed for determining the concentration of nanostructured powders of tungsten, molybdenum and Al2O3 in protective gas and for defining their optimal concentration. The influence of nanopowders on the structure of deposited metal was examined in consumable electrode arc welding employing the austenitic steel (chemical composition: C–0,12%, Cr–18%, Ni–10%,Ti–1%) as deposit and 1.2-mm welding wire manufactured from the austenitic steel (chemical composition:C–0,12%, Cr–18%, Ni–9%,Ti–%). Addition of nanostructured powders of tungsten, molybdenum and Al2O3 to the weldpool has shown positive effect on the structure of metal in arc welding. It is shown that introducing the powders decreases dendrite size and leads to the formation of a more equilibrium microstructure of the weld.
Режим доступа: по договору с организацией-держателем ресурса
Язык:английский
Опубликовано: 2015
Серии:Materials Science in Mechanical Engineering
Предметы:
Online-ссылка:http://dx.doi.org/10.4028/www.scientific.net/AMM.770.28
Формат: Электронный ресурс Статья
Запись в KOHA:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=643330

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