• 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.

Microstructural heterogeneity in hexagonal close-packed pure Ti processed by high-pressure torsion

Chen, Yongjun; Li, Yanjun; Walmsley, John; Gao, N; Roven, Hans Jørgen; Starink, MJ; Langdon, TG
Journal article, Peer reviewed
Accepted version
Thumbnail
View/Open
3-microstructure+heterogeneity+in+hexagonal+close-packed+pure+Ti+processed+by+high-pressure+torsion.pdf (608.2Kb)
URI
http://hdl.handle.net/11250/2462706
Date
2012
Metadata
Show full item record
Collections
  • Institutt for materialteknologi [1561]
  • Publikasjoner fra CRIStin - NTNU [19694]
Original version
Journal of Materials Science. 2012, 47 (12), 4838-4844.   10.1007/s10853-012-6343-0
Abstract
Microstructural evolution was studied quantitatively by electron backscattering diffraction in commercial purity Ti processed by high-pressure torsion (HPT) at room temperature. The results show that a heterogeneous microstructure develops during HPT processing with regions of both nanocrystalline grains (<100 nm) and coarse grains (~1–30 μm). Tensile {10_boxclose12} twins were observed in the center of the disk after the first turn of HPT. The microhardness near the disk center increases with increasing HPT turns and the hardness after 5 turns is reasonably homogeneous at radial positions >1 mm. The mechanism of grain refinement is characterized by dynamic recrystallization and the continuous formation of a necklace-like array of fine grains gradually consumes the larger grains in subsequent passes.
Publisher
Springer Verlag
Journal
Journal of Materials Science

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