Hot Corrosion Behaviour of Detonation Gun Sprayed Al2O3-40TiO2 Coating on Nickel Based Superalloys at 900°C

المؤلفون المشاركون

Mishra, N. K.
Mishra, S. B.
Kumar, Naveen

المصدر

Indian Journal of Materials Science

العدد

المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-5، 5ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2014-02-11

دولة النشر

مصر

عدد الصفحات

5

التخصصات الرئيسية

هندسة مدنية

الملخص EN

Hot corrosion is the major degradation mechanism of failure of boiler and gas turbine components.

These failures occur because of the usage of wide range of fuels such as, coal and oil at the elevated temperatures.

Nickel based superalloys having excellent mechanical strength and creep resistance at elevated temperature are used under such environment but they lack resistance to hot corrosion at high temperature.

To overcome these problems hot corrosion resistant coatings are deposited on these materials.

In the current investigation Al2O3-40%TiO2 powder has been deposited on Superni 718 and AE 435 superalloys by Detonation Gun method.

The hot corrosion performance of Al2O3-40%TiO2 coated as well as uncoated Superni 718 and AE 435 alloys has been evaluated in aggressive environment Na2SO4-82%Fe2(SO4)3 under cyclic conditions at an elevated temperature of 900°C.

The kinetics of the corrosion is approximated by weight change measurements made after each cycle for total duration of 50 cycles.

Scanning electron microscopy was used to characterize the hot corrosion products.

The coated samples imparted better hot corrosion resistance than the uncoated ones.

The AE 435 superalloy performed better than Superni 718 for hot corrosion in a given environment.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Mishra, N. K.& Kumar, Naveen& Mishra, S. B.. 2014. Hot Corrosion Behaviour of Detonation Gun Sprayed Al2O3-40TiO2 Coating on Nickel Based Superalloys at 900°C. Indian Journal of Materials Science،Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-472806

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Mishra, N. K.…[et al.]. Hot Corrosion Behaviour of Detonation Gun Sprayed Al2O3-40TiO2 Coating on Nickel Based Superalloys at 900°C. Indian Journal of Materials Science No. 2014 (2014), pp.1-5.
https://search.emarefa.net/detail/BIM-472806

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Mishra, N. K.& Kumar, Naveen& Mishra, S. B.. Hot Corrosion Behaviour of Detonation Gun Sprayed Al2O3-40TiO2 Coating on Nickel Based Superalloys at 900°C. Indian Journal of Materials Science. 2014. Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-472806

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-472806