Hot corrosion behaviour of austenitic steel-308 in chloride salts / Mohd. Misbahul Amin, Che Mohd. Ruzaidi Ghazali and Neelofar Amin

Amin, Mohd. Misbahul and Ghazali, Che Mohd. Ruzaidi and Amin, Neelofar (2008) Hot corrosion behaviour of austenitic steel-308 in chloride salts / Mohd. Misbahul Amin, Che Mohd. Ruzaidi Ghazali and Neelofar Amin. In: Proceedings STSS 2008 Broadening Horizons Through Research, 3 – 4 June 2008, M.S Garden Hotel Kuantan, Pahang.

Abstract

The intensification of process engineering in almost every branch of modern technology, and development of new technologies make increasingly higher requirements for metallic construction materials, especially for their heat and scaling resistance. The increase in operating efficiency of
certain installation or plants is generally achieved by the application of higher temperatures and pressures and higher flow velocities of gases and vapors which creates gas corrosion hazard for the construction materials. The hot corrosion behavior of Austenitic steel-30B in presence of chloride salts at 950° C in a slow current of air for the period of 72 hours has been studied. The Austenitic-308 alloy were severely attacked by calcium- and barium-chlorides due to formation of volatile metallic chlorides. The data have been complemented by oxidation kinetics measurements and morphological structures were analyzed using scanning electron microscope (SEM). The elemental distribution on the alloy surface deposits were characterized by using energy dispersive X-ray analysis (EDAX) techniques. The alkaline earth metal chloride salts have deleterious effect on the protectivity of the scales and rapid degradation of the alloy is noted.

Metadata

Item Type: Conference or Workshop Item (Paper)
Creators:
Creators
Email / ID Num.
Amin, Mohd. Misbahul
mmarnin@unimap.edu.my
Ghazali, Che Mohd. Ruzaidi
UNSPECIFIED
Amin, Neelofar
amin_56@yahoo.com
Subjects: Q Science > QC Physics > Heat
Q Science > QC Physics > Heat > High temperatures
Q Science > QD Chemistry > Inorganic chemistry > Metals
Divisions: Universiti Teknologi MARA, Pahang > Jengka Campus
Journal or Publication Title: Proceedings STSS 2008
Event Title: Proceedings STSS 2008 Broadening Horizons Through Research
Event Dates: 3 – 4 June 2008
Page Range: pp. 249-256
Keywords: 308 austenitic steel, BaCl2, CaCl2, Hot corrosion, Scales
Date: 2008
URI: https://ir.uitm.edu.my/id/eprint/58960
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