deformation twinning in commercial purity titanium at room temperature.
- Resource Type
- Article
- Authors
- Lainé, Steven J.; Knowles, Kevin M.
- Source
- Philosophical Magazine. Jul2015, Vol. 95 Issue 20, p2153-2166. 14p.
- Subject
- *TRANSMISSION electron microscopy
*TITANIUM
*ELECTRON diffraction
*TWINNING (Crystallography)
*MATERIAL plasticity
- Language
- ISSN
- 1478-6435
Definitive evidence from both electron backscattered diffraction and transmission electron microscopy is shown for the existence oftwinning as a rare deformation twinning mode in coarse-grained commercial purity titanium after room temperature ballistic impact testing at 103 s−1. Non-Schmid-based twin-type selection is demonstrated forand the conjugatedeformation twinning modes in this material within grains where thec-axis is closely aligned to the loading direction. Limited Schmid-based twin variant selection is shown foranddeformation twinning modes in this material. The occurrence of high area fractions oftwinning has relevance for high strain rate plasticity modelling of grains of textured titanium, compressed parallel to theirc-axes. [ABSTRACT FROM AUTHOR]