In:
International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 99, No. 10 ( 2008-10-01), p. 1150-1156
Kurzfassung:
The in-situ transmission electron microscopy technique allows direct observations of formation and growth of stress-induced martensite in pseudoelastic NiTi shape memory alloys. The present paper reports on the development of a miniature test procedure for in-situ straining experiments with specimens taken from small components. The deformation of an ultra-fine grained NiTi specimen is characterised by transmission electron microscopy (at early loading stages) and by optical microscopy (at larger strains). A complementary finite element analysis of the complex strain state in the specimen rationalises why the stress-induced martensitic transformation first occurs in the thin foil region of the specimen before spreading towards the outer rim of the specimen.
Materialart:
Online-Ressource
ISSN:
2195-8556
,
1862-5282
Sprache:
Englisch
Verlag:
Walter de Gruyter GmbH
Publikationsdatum:
2008
ZDB Id:
2232675-3
ZDB Id:
2128058-7
ZDB Id:
203021-4