ANALYSIS OF WELDING FAILURE OF AMMONIA SYNTHESIS CONVERTOR

Modawel, Dheeraj Mohan

dc.contributor.author	Modawel, Dheeraj Mohan
dc.date.accessioned	2014-11-22T08:15:04Z
dc.date.available	2014-11-22T08:15:04Z
dc.date.issued	1996
dc.identifier	M.Tech	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/10060
dc.guide	Chhadra, C.P.
dc.guide	Kapoor, M. L.
dc.guide	Mishra, P. S.
dc.description.abstract	This work is an attempt to find the reasons which have lead to cracking of weld seam no. 6 of Ammonia Synthesis Convertor of Tata Chemicals Limited, Babrala, Failure of convertor occurred after six months of service in hydrogen atmosphere. Microstructure of the weld metal showed some amount of abnormalities in the region where cracks were observed. Coarse carbides and coarse prior austentic grains were observed, in the weld metal. Hardness of the weld metal was found exceeding the safe limits of 250 HV, in the region where cracks were observed. These abnormalities were found to be due to incorrect post weld heat treatment, which have resulted in hydrogen induced cracking (HIC).	en_US
dc.language.iso	en	en_US
dc.subject	WELDING FAILURE	en_US
dc.subject	AMMONIA SYNTHESIS CONVERTOR	en_US
dc.subject	HYDROGEN INDUCED CRACKING(HIC)	en_US
dc.subject	METALLURGICAL AND MATERIALS ENGINEERING	en_US
dc.title	ANALYSIS OF WELDING FAILURE OF AMMONIA SYNTHESIS CONVERTOR	en_US
dc.type	M.Tech Dessertation	en_US
dc.accession.number	247437	en_US