| Numéro |
MATEC Web of Conferences
Volume 14, 2014
EUROSUPERALLOYS 2014 – 2nd European Symposium on Superalloys and their Applications
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|---|---|---|
| Numéro d'article | 01005 | |
| Nombre de pages | 6 | |
| Section | Session 1: Alloy Development I: Ni-Based Alloys | |
| DOI | https://doi.org/10.1051/matecconf/20141401005 | |
| Publié en ligne | 8 octobre 2014 | |
Intermetallic eutectic alloys in the Ni-Al-Zr system with attractive high temperature properties
Department of Materials Engineering Indian Institute of Science, Bangalore 560012, India
a Corresponding author: karthik@materials.iisc.ernet.in
We describe a group of alloys with ultrahigh strength of about 2 GPa at 700°C and exceptional oxidation resistance to 1100°C. These alloys exploit intermetallic phases with stable oxide forming elements that combine to form fine nanometric scale structures through eutectic transformations in ternary systems. The alloys offer engineering tensile plasticity of about 4% at room temperature though both conventional dislocation mechanisms and twinning in the more complex intermetallic constituent, along with slip lengths that are restricted by the interphase boundaries in the eutectics.
© Owned by the authors, published by EDP Sciences, 2014
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