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- Title
On the Phenomenon of Stress Drop During Hot Deformation of ZrTiAlV Alloy.
- Authors
Tan, Yuanbiao; Liu, Wenchang; Yuan, Hui; Liu, Riping; Zhang, Xiangyi
- Abstract
Hot deformation behaviors of 47Zr-45Ti-5Al-3V alloys with different grain sizes were investigated by compression tests. The flow curves exhibited a pronounced stress drop at the very beginning of deformation. The magnitude of the stress drop increased with the decreasing deformation temperature and the increasing strain rate. The sudden stress drop may be associated with the disappearance of mobile dislocations in the grain boundaries. Larger initial grain size increased the flow stress, promoted the stress drop, and enhanced the activation energy of deformation.
- Subjects
TITANIUM-aluminum-vanadium alloys; STRAINS &; stresses (Mechanics); DEFORMATIONS (Mechanics); MECHANICAL properties of metals; PARTICLE size distribution; DISLOCATIONS in metals
- Publication
Metallurgical & Materials Transactions. Part A, 2013, Vol 44, Issue 12, p5284
- ISSN
1073-5623
- Publication type
Article
- DOI
10.1007/s11661-013-2018-y