Fe Katkılı NiAl İntermetaliklerin Mekanik Özelliklerinin İncelenmesi

Year 2017, Volume: 4 Issue: 3, 349 - 354, 30.09.2017

İsmail Yıldız , Ayhan Erol

https://doi.org/10.31202/ecjse.298226

Abstract

Son yıllarda NiAl gibi intermetalik malzemeler, yüksek
sıcaklık uygulamalarında iyi mekanik ve fiziksel özellikler göstermektedir.
Özellikle yüksek erime noktası, iyi oksidasyon direnci ve yüksek sertlik bu
intermetaliklerin en dikkat çeken özellikleri arasındadır. NiAl
intermetalikler, Fe katkılı malzemenin yanında Ti, Cr, Co ve Mo gibi
malzemelerin katkısıyla çeşitli uygulamalarda kullanım alanına sahiptir.
Özellikle Fe katkılı intermetalikler, yoğunluk, yüksek dayanım ve iyi korozyon
direnci gibi özellikler sergilemektedir. Bu çalışmada NiAl toz karışımı ile Fe
tozu farklı sinterleme sıcaklığında sinterlenmiştir. Sinterlenen numunelere
sırasıyla SEM ve EDX analizleri gerçekleştirilmiştir.

Keywords

Sintering, intermetallics, powder

Investigation of Mechanical Properties of Fe-Doped Intermetallic NiAl

Abstract

Last few decades  intermetallic
materials such as NiAl are mechanical and physical properties for high
temperature practice. Especially high melting point, excellent oxidation
resistance and high hardness properties draw the attention in that
intermetallics. It is known that Ni-Al intermetallics are commonly used in
various application fields with the addition of 
Fe, in particular as well as elements such as Ti, Cr, Mo and Co which
are related to this group for improving properties thereof. It is especially
determined that Fe additive provides positive results in terms of moderate
intensity, high strenght and corrosion resistance in the produced
intermetallics. Sintering process was used in this work, NiAl powder mixture
and Fe powder were sintered at different temperatures. Scanning electron
microscopy imaging, EDX line analysis tests performed respectively to sintering
samples.

Keywords

Sinterleme, intermetalikler, toz

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