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- Title
Effects of Zr Additions on the Microstructure and the Mechanical Behavior of PM Mo-Si-B Alloys.
- Authors
Krüger, M.; Schliephake, D.; Jain, P.; Kumar, K.; Schumacher, G.; Heilmaier, M.
- Abstract
In this article, our current understanding on the effects of Zr additions on the properties of three-phase Mo-Si-B alloys is reported. This novel group of materials having high melting points around 2000°C have been identified as potential alloy systems for structural applications at temperatures beyond 1200°C, e.g., for substituting or supplementing state-of-the-art nickel-base superalloys in the power generation industry. In earlier work, we developed various Mo-Si-B materials with very good high-temperature deformation behavior and, in addition, that satisfy oxidation performance. Minimum brittle-to-ductile transition temperatures of around 950°C, however, do not meet the requirements for high-grade stressed structural materials. Therefore, in a second trial, we investigate the influence of the alloying element Zr (which was already proven to increase the strength as well as the ductility of a single-phase Mo-Si alloy) on three-phase Mo-Si-B alloys.
- Subjects
ZIRCONIUM; ALLOYS; MOLYBDENUM compounds; DEFORMATIONS (Mechanics)
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2013, Vol 65, Issue 2, p301
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-012-0475-1