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Download fileAmmonium nitrate induced cracking of a dryer
journal contribution
posted on 2017-12-06, 00:00 authored by Richard CleggRichard Clegg, R Tomlins, M MackayAfter less than 1 year of service, extensive cracking of two ammonium nitrate prill dryers was found. The cracking was found to be ammonium nitrate-induced stress corrosion cracking and the failure was attributed to a lack of post-weld stress relieving of the fabricated structures. It was considered likely that the SCC would occur more slowly once the cracks had progressed beyond the region of high residual stresses and that the design operating stresses in the dryer would be insufficient to cause rapid cracking in the dryers. In order to manage the dryers until new ones could be fabricated, the dryers were operated normally with regular inspections to monitor crack growth and to date, no significant addition crack growth of major cracks was observed.
Funding
Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)
History
Volume
18Issue
6Start Page
1559End Page
1564Number of Pages
6eISSN
1350-6307ISSN
1350-6307Location
OxfordPublisher
ElsevierPublisher DOI
Full Text URL
Language
en-ausPeer Reviewed
- Yes
Open Access
- No
External Author Affiliations
Institute for Resource Industries and Sustainability (IRIS); Orica Mining and Resources; Process Engineering and Light Metals; Rexsan Pty Ltd;Era Eligible
- Yes