Abstract
The evolution of adiabatic shear localization in commercial titanium subjected to heavy cold rolling was investigated. The evolution of the morphology, microhardness, local shear strain, and local temperature increments were systematically studied and estimated. A shear band with about 25. μm in width was formed and fine nanograins with a range of dimensions varying from 20 to 160. nm and had a mean size of about 70. nm were observed inside the centre of shear band after 83% cold-rolling. Microhardness test shows that hardness within the shear band is markedly higher than that of the surrounding matrix. The calculated shear strain and maximum temperature increase within the shear band are much higher than that of the overall deformed sample. The initiation of shear localization may depend on geometric perturbation instead of thermal ones.
| Original language | English |
|---|---|
| Pages (from-to) | 3990-3997 |
| Number of pages | 8 |
| Journal | Materials Science and Engineering A |
| Volume | 528 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2011 |
Keywords
- shear (mechanics)
- titanium