Abstract
The oxidation behavior of a new Ni-Cr-Mo-Si alloy has been evaluated from 1000°C to 1200°C in air plus 5% water vapor and in oxygen at 1200°C, under cyclic conditions. For comparison, two commercial and two experimental Ni-Cr-Si-Nb alloys and alloys HX, 600 and MA758 were included. The experimental results show that the Ni-Cr-Mo-Si material has excellent resistance to oxidation attack, provided by both a continuous chromium oxide scale, a discontinuous silicon oxide sub-scale, and rare-earth additions. Sample characterization methods include light and SEM microscopy and EPMA.
Original language | English |
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Journal | NACE - International Corrosion Conference Series |
Volume | 2003-April |
State | Published - 2003 |
Event | Corrosion 2003 - San Diego, United States Duration: Apr 16 2003 → Apr 20 2003 |
Keywords
- Chromium oxide
- Nickel-base alloys
- Oxidation
- Rare earth addition
- Silicon oxide