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Journals / Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi / 2011 / Cilt: 24 - Sayı: 2

Effect Of Tungsten Addıtıon On Oxıdatıon-Sulfıdatıon Behavıour Of Fe3al Alloys

Tungsten İlavesinin Fe3Al Alaşımının Oksitlenme - Sülfürlenme Özelliklerine ETKİSİ

Neşe ÖZTÜRK KÖRPE
İbrahim ÇELİKYÜREK
Remzi GÜRLER
Pages
11–22
Publication Date
2011-12-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was found that the additon of W increased the parabolic rate constants of the Fe–28Al base alloy studied.

📌 3 Key Takeaways

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Objective & Hypothesis:The high-temperature corrosion behavior of Fe-28Al and three Fe–28Al–xW (where x=0.5, 1, and 1.5 at.%) ternary alloys were studied in the temperature range of 900–1000 °C in N2/O2/CO2/SO2 mixed gases.
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Key Findings & Data:After an initial corrosion stage, the oxidation obeyed the parabolic rate law, with parabolic rate constants with curve fits over the entire exposure range from 5x10-6to 5x10-7 mg2/cm4/s calculated.
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Conclusion & Impact:It was found that the additon of W increased the parabolic rate constants of the Fe–28Al base alloy studied.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Demir alüminat · oksitlenme-sülfürlenme.. · Iron Aluminide

Abstract

The high-temperature corrosion behavior of Fe-28Al and three Fe–28Al–xW (where x=0.5, 1, and 1.5 at.%) ternary alloys were studied in the temperature range of 900–1000 °C in N2/O2/CO2/SO2 mixed gases. After an initial corrosion stage, the oxidation obeyed the parabolic rate law, with parabolic rate constants with curve fits over the entire exposure range from 5x10-6to 5x10-7 mg2/cm4/s calculated. It was found that the additon of W increased the parabolic rate constants of the Fe–28Al base alloy studied. No catastrophic corrosion behavior was observed.

Özet

Fe-28Al ve üçlü Fe–28Al–xW (x= at.% 0,5; 1 ve 1,5) alaşımlarının, 900– 1000 °C sıcaklık aralığında hacime %6 CO2, %80,6 N2, %13 O2, 4000 ppm SO2 içeren gaz karışımında yüksek sıcaklıklardaki korozyon davranışı çalışılmıştır. Başlangıçtaki hızlı korozyon basamamağından sonra alaşımların 5x10-6 ve 5x10-7 mg2/cm4/sn aralığında hesaplanan parabolik hız sabitleri ile korozyonun parabolik hız kanununa uyduğu bulunmuştur. W elementinin ilavesi ile ikili Fe-28Al alaşımının yüksek sıcaklık parabolik hız sabitlerinde artış görülmüştür. Ancak katastrofik korozyon görülmemiştir.

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Cite This Article

KÖRPE, N. Ö., ÇELİKYÜREK, İ., GÜRLER, R. (2011). Effect Of Tungsten Addıtıon On Oxıdatıon-Sulfıdatıon Behavıour Of Fe3al Alloys. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, Cilt: 24 - Sayı: 2, 11–22. https://ajindex.com/articles/755126

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