Title
Is There A Hexagonal-Close-Packed (Hcp) → Face-Centered-Cubic (Fcc) Allotropic Transformation In Mechanically Milled Group Ivb Elements?
Abstract
Allotropie hexagonal-close-packed (hcp) → face-centered-cubic (fee) transformations were reported in Group IVB elements titanium (Ti), zirconium (Zr), and hafnium (Hf) subjected to mechanical milling in a high-energy SPEX shaker mill. Although the transformation was observed in powders milled under regular conditions, no such phase transformation was observed when the powders were milled in an ultrahigh purity environment by placing the powder in a milling container under a high-purity argon atmosphere, which was in turn placed in an argon-filled glove box for milling. From a critical analysis of the results, it was concluded that the hcp →fcc phase transformation was, at least partially, due to pick-up of interstitial impurities by the powder during milling of these powders to the nanocrystalline state. © 2009 Materials Research Society.
Publication Date
11-1-2009
Publication Title
Journal of Materials Research
Volume
24
Issue
11
Number of Pages
3454-3461
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1557/jmr.2009.0423
Copyright Status
Unknown
Socpus ID
70450141251 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/70450141251
STARS Citation
Seelam, Uma M.R.; Barkhordarian, Gagik; and Suryanarayana, Challapalli, "Is There A Hexagonal-Close-Packed (Hcp) → Face-Centered-Cubic (Fcc) Allotropic Transformation In Mechanically Milled Group Ivb Elements?" (2009). Scopus Export 2000s. 11163.
https://stars.library.ucf.edu/scopus2000/11163