Study on Plastic Deformation Zone of Titanium Alloy

During the crack propagation, crack tip contains stress odd singularity and has specific yield range. As the cycling loading continuing, the crack grows in the plastic zone. So the plastic zone is crucial to crack propagation action. In this paper, the crack propagation route was observed in differe...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2019-12, Vol.1347 (1), p.12061
Main Authors: Guo, P, Zhao, Y.Q, Jia, G.Y, Hong, Q, Hou, H.M, Pan, H, Zhang, Y.Q, Liu, D.X
Format: Article
Language:English
Subjects:
Crack propagation
Crack tips
Equiaxed structure
Lamellar structure
Physics
Plastic deformation
Plastic zones
Propagation
Stress propagation
Titanium alloys
Titanium base alloys
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:During the crack propagation, crack tip contains stress odd singularity and has specific yield range. As the cycling loading continuing, the crack grows in the plastic zone. So the plastic zone is crucial to crack propagation action. In this paper, the crack propagation route was observed in different microstrctures, the deformation characteristic of plastic zone was analyzed for equiaxed structure and lamellar structure. The results show that crack propagation path is more straighter in equiaxed structure than that in lamellar structure. There were more tiny cracks near the crack surface in the lamellar structure during the crack growth, which shows that lamellar structure has a bigger plastic zone during the deformation.The plastic deformation need absorb the energy, which hinders the crack propagation.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1347/1/012061