Abstract
The tensile deformation and fracture behavior of Ti555211 alloy were investigated by in-situ SEM tensile tests. The results show that the slip bands are given priority within the lamellar structure with the tensile loading direction larger than 45° for the Ti555211 alloy with initial lamellar structure. The cracks propagate from the corners of the indention both across and along the lamellar directions for the alloy with initial lamellar directions. Moreover, as the crack propagates, the slip bands become dense. The main fracture mode of the lamellar samples is ductile fracture. The Ti555211 alloy shows different fracture morphologies. For the alloy with initial lamellar structure, visible shear lips and a number of dimples are observed in the fracture. The deformation and fracture behavior of the near-β titanium alloy of Ti555211 can be tracked by the SEM in-situ tensile test method in real time. The results of this method are scientific and informative.
| Translated title of the contribution | In-situ SEM Observations on Tensile Deformation Behavior of Ti555211 Titanium Alloy with Lamellar Structure |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 853-858 |
| Number of pages | 6 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 48 |
| Issue number | 3 |
| State | Published - 1 Mar 2019 |