| Title: |
Effect of retained beta layer on slip transmission in Ti-6Al-2Zr-1Mo-1V near alpha titanium alloy during tensile deformation at room temperature |
| First author: |
He Dong;Zhu Jingchuan;Zaefferer S.;Raabe D. |
| Abstract: |
Slip is the main plastic deformation mechanism in titanium alloys at room temperature. This is especially so for near alpha titanium alloy like Ti-6Al-2Zr-1Mo-1V, which contains low beta stabilizing and high aluminum (alpha stabilizing) element additions. The effects of retained beta layers on slip transmission across α/β interfaces in Ti-6Al-2Zr-1Mo-1V during tensile deformation have been studied in the current work. High resolution scanning electron microscopy (HR-SEM) and electron backscatter diffraction (EBSD) techniques were used to study the deformation microstructure. The results indicate that the full Burgers crystal orientation relationship (OR) between the α and the thin retained β phase layers facilitates slip transition but is not the necessary requirement/restriction. Some novel slip trace morphologies that are characterized by deflection and bifurcation (fork-like morphology) are revealed in the retained β layers between two abutting α grains. The possible reasons for these different slip transmission patterns are analyzed by EBSD results and a schematic model is proposed.
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| Contact the author: |
He Dong |
| Page number: |
937-942 |
| Issue: |
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| Subject: |
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| Authors units: |
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| PubYear: |
2014 |
| Volume: |
56 |
| Unit code: |
115111 |
| Publication name: |
MATERIALS & DESIGN |
| The full text link: |
http://dx.doi.org/10.1016/j.matdes.2013.12.018 |
| Full papers: |
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| Departmens of first author: |
LNM |
| Paper source: |
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| Paper type: |
AK |
| Participation of the author: |
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| ISSN: |
0261-3069 |
