Abstract Internal friction and dynamic elasticity moduli on thin reeds of nanostructured Al, Fe, FeAl and Fe3Al intermetallics prepared by ball milling have been measured. A relaxational damping peak in pure metals at 350–500 K and a modulus increase at 450–500 K without appreciable grain growth has been detected. Moreover, magnetoelastic coupling dependent on grain size has been observed in iron. In the nanophase intermetallic aluminides a strong relaxational damping peak was observed in the 700–800 K range. These results are briefly discussed with reference to the anelastic behaviour of similar coarse grained materials.

Anelasticity and structural stability in nanostructured metals and compounds

E. Bonetti
Primo
Supervision
;
E. G. Campari
Secondo
Validation
;
1995

Abstract

Abstract Internal friction and dynamic elasticity moduli on thin reeds of nanostructured Al, Fe, FeAl and Fe3Al intermetallics prepared by ball milling have been measured. A relaxational damping peak in pure metals at 350–500 K and a modulus increase at 450–500 K without appreciable grain growth has been detected. Moreover, magnetoelastic coupling dependent on grain size has been observed in iron. In the nanophase intermetallic aluminides a strong relaxational damping peak was observed in the 700–800 K range. These results are briefly discussed with reference to the anelastic behaviour of similar coarse grained materials.
1995
Proceedings of the Second International Conference on Nanostructured Materials
639
642
E. Bonetti, E.G.Campari, L.Del Bianco, G.Scipione
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/817494
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 19
  • ???jsp.display-item.citation.isi??? 20
social impact