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In this study, duplex stainless steel was coated with Ni3Al powder via self-propagating high-temperature synthesis (SHS) and the effect of
the sintering temperature on the coating characteristics was investigated. An SEM
electron microscope with EDX (energy dispersive X-ray spectroscopy) was used to examine
the microstructure of samples that were coated according to the SHS method and likewise
to detect the element content of the phases in the structure. Microhardness tests
were conducted on the samples to determine the mechanical properties of the coated
material. As a result of these studies, it was found that duplex stainless steel can
be reliably coated with an Ni3Al intermetallic compound. The increase in sintering temperature within the given
range significantly decreased the size of the disconnected area which completely disappeared.
In der diesem Beitrag zugrunde liegenden Studie wurde Duplexstahl mit Ni3Al-Pulver mittels Hochtemperatursynthese (self-propagating high-temperature synthesis
(SHS)) beschichtet und die Auswirkungen der Temperatur und Zeitdauer während der Herstellung
untersucht. Hierzu wurden Rasterelektronenmikroskopien mittels EDX durchgeführt, um
die Mikrostruktur der beschichteten Proben zu untersuchen und die Elementverteilung
in den Phasen zu detektieren. Es wurden Messungen der Mikrohärte durchgeführt, um
die mechanischen Eigenschaften der Beschichtungen zu prüfen. Als ein Ergebnis stellte
sich heraus, dass Duplexstahl zuverlässig mit der intermetallischen Phase Ni3Al beschichtet werden kann. Mit zunehmender Sintertemperatur wurde die nicht verbundene
Fläche auf Null reduziert.
]Correspondence Address, Assoc. Prof. Vedat Veli Çay, Civil Aviation Higher School, Dicle University, 21280,
Diyarbakır, Turkey, E-mail:
Associate Professor Vedat Veli Çay, born in 1977, received his MSc in 2003 and his
PhD in 2009, respectively, at the Institute of Science and Technology in the Metal
Education Department of te University of Firat in Elazığ, Turkey. Since 2009, he has
been working at Dicle University, Diyarbakır, Turkey. His fields of interests include
fusion welding method, solid state welding method, materials science, composite materials,
powder metallurgy, manufacturing techniques, surface modification and tribology.
Assistant Professor Nida Katı, born in 1988, received his BSc in the Faculty of Technical
Education and the Metal Education Department of the University of Firat n Elaziğ,
Turkey, in 2009. In 2014, she received her PhD also at the University of Firat, in
the Institute of Science and Technology and the Metallurgy Department,. Her research
areas include fusion welding, solid state welding, materials science, composite materials,
powder metallurgy, manufacturing techniques and surface modification.
Associate Professor SerminOzan, born in 1970, received her BSc in the Faculty of Engineering
and the Mechanical Engineering Department in of the University of Firat, Elaziğ, Turkey,
in 1994. In 2000, she received her PhD at the same university. Her research areas
include fusion materials science, composite materials, powder metallurgy, manufacturing
techniques welding, solid state welding, and surface modification.
Research Assistant Tayfun Çetin, born in 1988, received his BSc in the Faculty of
Technical Education and the Metal Education Department of the University of Firat
in Elaziğ, Turkey, in 2010. He completed his master's degree also atr Firat University,
Metallurgy in Education Department in 2014. After completing the same year at Karabük
University Faculty of Engineering Metallurgical and Materials Engineering from the
Department of Licensing Program and graduated in 2016. He is continuing his doctoral
training in the Manufactiring Engineering Department at the same universty.