Abstract
The effect of slip transfer on heterogeneous deformation of polycrystals has been a topic of recurring interest, as this process can either lead to the nucleation of damage, or prevent nucleation of damage. This paper examines recent experimental characterization of slip transfer in tantalum, TiAl, and Ti alloys. The methods used to analyze and assess evidence for the occurrence of slip transfer are discussed. Comparisons between a characterized and simulated patch of microstructure are used to illustrate synergy that leads to new insights that cannot arise with either approach alone.
| Original language | English |
|---|---|
| Pages (from-to) | 212-226 |
| Number of pages | 15 |
| Journal | Current Opinion in Solid State and Materials Science |
| Volume | 18 |
| Issue number | 4 |
| DOIs | |
| State | Published - Aug 2014 |
| Externally published | Yes |
Funding
The authors gratefully acknowledge financial support from NSF-Materials World Network ( NSF-DMR-1108211 , DFG ZA 523/3-1 ), Max-Planck-Institut für Eisenforschung , DOE-BES ( DE-FG02-09ER46637 ), and Sandia National Laboratory . Use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences , under Contract No. W-31-109-Eng-38 . We are grateful for continuous support by D. Raabe during extended summer stays at Max-Planck-Institut für Eisenforschung, Düsseldorf, and the many inspiring discussions with members of his department. We also appreciate microscopy, data collection, and analysis done by undergraduate students Justin Roe and Scott Sutton, and Leyun Wang for unpublished slip transfer data in titanium.
Keywords
- Damage nucleation
- Geometrically necessary dislocations
- Grain boundary
- Mechanical twinning
- Slip transfer
- Tantalum
- Titanium