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Title: Damage analysis on furnace radiant tube using energy dispersive X-ray analysis
Authors: Mohd, Harun
Mahdi Ezwan, Mahmoud
Zaifol, Shamsu
Norasiah, Kasim
Zaiton, Selamat
Katrul Hisham, Alauddin
Zulkifli, Zainon
Keywords: Sigma phase;Brittle compound;Austenite;Scanning electron microscope and Energy-dispersive X-Ray analyzer;International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI)
Issue Date: 9-Jun-2010
Publisher: Universiti Malaysia Perlis
???metadata.dc.publisher.department???: School of Materials Engineering & School of Environmental Engineering
Citation: p.41-45
Series/Report no.: Proceedings of the International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) 2010
Abstract: A bulging incident happened on the alloy of Fe-Cr-Ni furnace tube after 5 years of operation. The original outer diameter for the tube is 89 mm. The medium environment inside tube is ethane gas. The tube design temperature is 1050oC. The fuel gas has been used to heat the tube containing the ethane gas. The operating heating temperature on the tube is 1044oC. From visual examination, it was found that the bulging is about 0.7mm occurred on the tube. Sigma phase is hard and brittle compound can be formed from austenite at temperature between about 649 to 870oC. The compound approximately FeCr but has a variable composition. The sigma phase imparts ambient temperature brittleness and a loss of creep-rupture strength. The aim is to investigate the formation of gamma phase due to long time working at elevated temperature by using scanning electron microscope and Energy-dispersive X-Ray analyzer.
Description: International Conference on X-Rays and Related Techniques in Research and Industry (ICXRI 2010) jointly organized by Universiti Malaysia Perlis (UniMAP) and X-Ray Application Malaysia Society (XAPP), 9th - 10th June 2010 at Aseania Resort Langkawi, Malaysia.
URI: http://hdl.handle.net/123456789/9019
ISSN: 978-967-5760-02-0
Appears in Collections:Conference Papers

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