• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Hydrogen-induced cracking and hydrogen embrittlement of Ni2MnGa FSMAs

Shen, Liancheng; su, yanjing; He, Jianying; chu, wuyang; qiao, lijie
Journal article, Peer reviewed
Published version
View/Open
Shen (Locked)
URI
http://hdl.handle.net/11250/2596653
Date
2010
Metadata
Show full item record
Collections
  • Institutt for konstruksjonsteknikk [2627]
  • Publikasjoner fra CRIStin - NTNU [41869]
Original version
Journal of Physics D: Applied Physics. 2010, 43 (5), .   10.1088/0022-3727/43/5/055001
Abstract
Hydrogen-induced cracking and hydrogen embrittlement of Ni50Mn30Ga20 ferromagnetic shape memory alloys (FSMAs) were studied through indentation and tension experiments supplemented with in situ observation. The results showed that for Ni50Mn30Ga20 FSMAs, hydrogen-induced cracking could occur with the residual stress caused by indentation during dynamic hydrogen charging. Hydrogen-induced cracking was initiated and propagated during dynamic hydrogen charging in the pre-cracked specimens under constant deflection. The fracture toughness KIC decreased from 1.9 MPa m1/2 for the uncharged specimens to 0.4 MPa m1/2 for the samples charged with hydrogen. The possible mechanism of hydrogen-induced cracking and hydrogen embrittlement for Ni50Mn30Ga20 FSMAs is due to diffusible hydrogen decreasing the efficient surface energy.
Publisher
IOP Publishing
Journal
Journal of Physics D: Applied Physics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit