Grain-size and alloying effects on the pressure-induced bcc-to-hcp transition in nanocrystalline iron

Authors
Jiang, JZ Olsen, JS Gerward, L
Citation
Jz. Jiang et al., Grain-size and alloying effects on the pressure-induced bcc-to-hcp transition in nanocrystalline iron, MATER TRANS, 42(8), 2001, pp. 1571-1574
Citations number
10
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALS TRANSACTIONS
ISSN journal
13459678 → ACNP
Volume
42
Issue
8
Year of publication
2001
Pages
1571 - 1574
Database
ISI
SICI code
1345-9678(200108)42:8<1571:GAAEOT>2.0.ZU;2-R
Abstract
The pressure-induced bcc-to-hep phase trans formation has been studied by x -ray diffraction for bulk iron as well as nanocrystalline iron and a Fe90Cu 10 alloy. The nanocrystalline material has a lower onset pressure and a lar ger pressure hysteresis than bulk iron. The non-random orientation of the n anocrystals is sensitive to shear stress in the high-pressure cell.