The financial support of German Science Foundation (DFG) within the Collaborative Research Center SFB/Transregio 103 “From Atoms to Turbine Blades – a Scientific Approach for Developing the Next Generation of Single Crystal Superalloys”, project B01, as well as within the Research Training Group 1229 “Stable and Metastable Multiphase Systems at High Temperature” is gratefully acknowledged.
The Three-Dimensional Morphology of Topologically Close Packed Phases in a High Rhenium Containing Nickel Based Superalloy†
Article first published online: 4 OCT 2013
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Engineering Materials
Volume 16, Issue 2, pages 171–175, February 2014
How to Cite
Matuszewski, K., Rettig, R., Rasiński, M., Kurzydłowski, K. J. and Singer, R. F. (2014), The Three-Dimensional Morphology of Topologically Close Packed Phases in a High Rhenium Containing Nickel Based Superalloy. Adv. Eng. Mater., 16: 171–175. doi: 10.1002/adem.201300198
- Issue published online: 17 FEB 2014
- Article first published online: 4 OCT 2013
- Manuscript Accepted: 1 SEP 2013
- Manuscript Received: 27 MAY 2013
The three-dimensional morphology of topologically close packed phases (TCP) in an experimental 6 wt% rhenium-containing superalloy is examined with focused ion beam tomography and compared to the existing knowledge gained with classical microscopy of two-dimensional cross-sections. The results show completely new insights compared to investigation of cross-sections. With the new technique, three different types of TCP-phase morphologies and the orientation of their growth planes could be identified: complex shaped plates, needles, and laths. In the classical cross-section, they all appear to be needles. A part of the needles is penetrating the plate-like precipitates. Possible conclusions on the growth mechanism are discussed.