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Use of a.c. magnetic susceptibility for temperature measurement and discrimination between spinodal decomposition and sigma phase formation
Lo K.H.
2011-03-01
Source PublicationJournal of Nondestructive Evaluation
ISSN01959298 15734862
Volume30Issue:1Pages:41-46
Abstract

Duplex stainless steels are embrittled on exposure to elevated temperatures because of spinodal decomposition (<550°C) and sigma phase formation (between 600°C and 900°C). The sigma phase has been discovered to undergo a paramagnetic-to-ferromagnetic transition at cryogenic temperatures and its Curie temperature has a good dependence on prior annealing temperature. Additionally, it has been found that the room-temperature a.c. magnetic susceptibility also has a good temperature-dependence when spinodal decomposition occurs. It is viable to use room-temperature a.c. magnetic susceptibility and the cryogenic magnetic transition of the sigma phase for 1. temperature measurement and 2. discrimination between spinodal decomposition and sigma phase formation in duplex stainless steels. © 2011 Springer Science+Business Media, LLC.

KeywordDuplex Stainless Steel Magnetic Susceptibility Sigma Phase Spinodal Decomposition
DOI10.1007/s10921-010-0088-y
URLView the original
Indexed BySCI
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Characterization & Testing
WOS IDWOS:000286833500005
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Citation statistics
Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Lo K.H.. Use of a.c. magnetic susceptibility for temperature measurement and discrimination between spinodal decomposition and sigma phase formation[J]. Journal of Nondestructive Evaluation,2011,30(1):41-46.
APA Lo K.H..(2011).Use of a.c. magnetic susceptibility for temperature measurement and discrimination between spinodal decomposition and sigma phase formation.Journal of Nondestructive Evaluation,30(1),41-46.
MLA Lo K.H.."Use of a.c. magnetic susceptibility for temperature measurement and discrimination between spinodal decomposition and sigma phase formation".Journal of Nondestructive Evaluation 30.1(2011):41-46.
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