Oxide Morphology of a FeCrAl Alloy, Kanthal APMT, Following Extended Aging in Air at 300 °C to 600 °C

The subject of the study were rubber mixtures based on hydrogenated butadiene-nitrile rubbers (HNBR) Therban, Zetpol, NBR-B with an acrylonitrile (AN) content of 34% to 49% and unsaturation of 0.9% to 22% with sulfuric, peroxide and sulfuric-peroxide cure systems. The purpose of the study was to determine the effect of the AN content and the degree of unsaturation of HNBR on the properties of rubbers in products designed for operation under the influence of fuels and oils at increased temperatures.The results of the determination of the mass swelling of rubbers in hydrocarbon media and the relative elongation in the process of thermal aging in air and in oil at increased temperatures are presented. The conclusion was made on the use of HNBR mixture with maximum content of AN (49%), with low (6%) and extremely low (0.9%) ODS content and sulfuric peroxide cure system to extend the product service temperature limit to 150°C.

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FeCrAl alloy shows good hot strength

Metal Powder Report ◽

10.1016/0026-0657(92)91892-n ◽

1992 ◽

Vol 47 (10) ◽

pp. 46-49 ◽

Cited By ~ 1

Keyword(s):

Hot Strength ◽

Fecral Alloy

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Initial stages of metal-organic chemical-vapor deposition of ZrO2 on a FeCrAl alloy

Thin Solid Films ◽

10.1016/j.tsf.2007.04.048 ◽

2008 ◽

Vol 516 (6) ◽

pp. 875-879 ◽

Cited By ~ 1

Author(s):

T.M. Grehk ◽

J. Engkvist ◽

U. Bexell ◽

J.H. Richter ◽

P.G. Karlsson ◽

...

Keyword(s):

Chemical Vapor Deposition ◽

Vapor Deposition ◽

Chemical Vapor ◽

Organic Chemical ◽

Fecral Alloy ◽

Metal Organic ◽

Organic Chemical Vapor Deposition

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Understanding roles of Zr and W on hot/warm deformation behavior of FeCrAl alloy: Grain boundary features and dynamic precipitation of Laves phase

Intermetallics ◽

10.1016/j.intermet.2021.107387 ◽

2022 ◽

Vol 140 ◽

pp. 107387

Author(s):

Wenbo Liu ◽

Zhe Liu ◽

Wei Luo ◽

Huiqun Liu ◽

Qing Wang ◽

...

Keyword(s):

Grain Boundary ◽

Deformation Behavior ◽

Laves Phase ◽

Dynamic Precipitation ◽

Warm Deformation ◽

Fecral Alloy

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Evaluation of Aging in Air of Poly (Ethylene Terephthalat) in Oxygen Plasma

Materials Research ◽

10.1590/1516-1439.305814 ◽

2015 ◽

Vol 18 (5) ◽

pp. 891-896 ◽

Cited By ~ 10

Author(s):

Michelle Cequeira Feitor ◽

Clodomiro Alves Junior ◽

Clovis Medeiros Bezerra ◽

Rômulo Ribeiro Magalhães de Sousa ◽

Thercio Henrique de Carvalho Costa

Keyword(s):

Oxygen Plasma ◽

Poly Ethylene ◽

Aging In Air

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Effects of Extended Aging on the Flavor Characteristics of Grass and Grain Fed Australian Beef Longissimus Thoracis

Meat and Muscle Biology ◽

10.22175/mmb2019.0088 ◽

2019 ◽

Vol 3 (2) ◽

pp. 88-88

Author(s):

O. E. Musa ◽

A. J. Garmyn ◽

J. F. Legako ◽

D. R. Woerner ◽

M. F. Miller

Keyword(s):

Extended Aging

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High temperature corrosion of commercial FeCrAl alloys (Kanthal AF) in nitrogen gas

Journal of Mining and Metallurgy Section B Metallurgy ◽

10.2298/jmmb181121012v ◽

2019 ◽

Vol 55 (1) ◽

pp. 55-63 ◽

Cited By ~ 1

Author(s):

S. Veskovic-Bukudura ◽

J. Kovac ◽

B. Karpe ◽

P. Umek ◽

A. Nagode ◽

...

Keyword(s):

Focused Ion Beam ◽

Annealing Temperature ◽

Ion Beam ◽

Corrosion Mechanism ◽

Low Oxygen ◽

Heating Rates ◽

Nitrogen Gas ◽

Fecral Alloy ◽

Nitride Formation ◽

Aluminum Activity

In the present study, the corrosion mechanism of commercial FeCrAl alloy (Kanthal AF) during annealing in nitrogen gas (4.6) at 900?C and 1200?C is outlined. Isothermal and thermo-cyclic tests with varying total exposure times, heating rates, and annealing temperatures were performed. Oxidation test in air and nitrogen gas were carried out by thermogravimetric analysis. The microstructure is characterized by scanning electron microscopy (SEM-EDX), Auger electron spectroscopy (AES), and focused ion beam (FIB-EDX) analysis. The results show that the progression of corrosion takes place through the formation of localized subsurface nitridation regions, composed of AlN phase particles, which reduces the aluminum activity and causes embrittlement and spallation. The processes of Al-nitride formation and Al-oxide scale growth depend on annealing temperature and heating rate. It was found that nitridation of the FeCrAl alloy is a faster process than oxidation during annealing in a nitrogen gas with low oxygen partial pressure and represents the main cause of alloy degradation.

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