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The oxidation of an 18/8 type stainless steel in CO2

✍ Scribed by A. F. Smith

Publisher
John Wiley and Sons
Year
1979
Tongue
German
Weight
567 KB
Volume
30
Category
Article
ISSN
0947-5117

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✦ Synopsis

Abstract

The oxidation behaviour of an 18/8 type stainless steel has been studied in the temperature range 873‐1258 K (600–985 Β°C) by continous weight gain measurements, metallography and scanning electron microscopy. An initial high oxidation rate was followed by a much slower rate. Duplex scales formed at an early stage of oxidation and the decrease in oxidation rate is probably due to the formation of an ordered chromium rich spinel at the oxide/metal interface.

A ture parabolic rate constant (k~p~) was obtained taking into account the formation of the β€œhealing” phase using the Hales model. This gave:

.
where the activation energy is expressed in KJ Β· mole^βˆ’1^. (55 Kcals mole^βˆ’1^).

πŸ“œ SIMILAR VOLUMES

The oxidation of 18/8 type stainless ste
The oxidation of 18/8 type stainless steel in high pressure CO2/2% CO
✍ A. F. Smith πŸ“‚ Article πŸ“… 1981 πŸ› John Wiley and Sons 🌐 German βš– 773 KB

## Abstract The oxidation of a variety of 18/8 stainless steels in high pressure CO~2~/2% CO has been followed in the temperature range 550–650Β°C using intermittent weight gain measurement metallography, fractography and scanning electron microscopy. Duplex scales formed at an early stage of oxidat

The detailed examination of two stainles
The detailed examination of two stainless steel specimens oxidised for 20,000 hours in high pressure CO2/2% CO
✍ A. F. Smith πŸ“‚ Article πŸ“… 1982 πŸ› John Wiley and Sons 🌐 German βš– 851 KB

## Abstract Detailed examination has been carried out on two specimens of 18/8 steels representing the extremes of the rates of parabolic duplex scale growth at 600Β°C using metallography, scanning electron microscopy, microprobe and nuclear microprobe analysis. The high growth rate material, vacuu