AgCl-induced hot salt stress corrosion cracking in a titanium alloy
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
The mechanism of AgCl-induced stress corrosion cracking of Ti-6246 was examined at 500 MPa and 380 °C for 24 h exposures. SEM and STEM-EDX examination of a FIB-sectioned blister and crack showed that metallic Ag was formed and migrated along the crack. TEM analysis also revealed the presence of SnO2 and Al2O3 corrosion products mixed into TiO2. The fracture surface has a transgranular nature with a brittle appearance in the primary α phase. Long, straight and non-interacting dislocations were observed in a brittle appearance fractured primary α grain, with basal and pyramidal traces. This is consistent with a dislocation emission view of the cracking mechanism.
Date Issued
2021-07-15
Date Acceptance
2021-04-22
Citation
Corrosion Science, 2021, 187, pp.1-11
ISSN
0010-938X
Publisher
Elsevier
Start Page
1
End Page
11
Journal / Book Title
Corrosion Science
Volume
187
Copyright Statement
© 2021 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000657394500001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Materials Science
Titanium alloys
Stress corrosion cracking (SCC)
STEM-EDX
Hydrogen embrittlement
Solid metal embrittlement
METAL-INDUCED EMBRITTLEMENT
HYDROGEN EMBRITTLEMENT
ATMOSPHERIC CORROSION
ALPHA-TITANIUM
SILVER
ANATASE
RUTILE
MODEL
PROPAGATION
MECHANISMS
Publication Status
Published
Article Number
ARTN 109497
Date Publish Online
2021-04-27