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The corrosion behaviour of nickel-base alloy 625 (NiCr22Mo9Nb; 2.4856) and ceria stabilized tetragonal zirconia polycrystal (Ce-TZP) against oxidizing aqueous solutions of hydrofluoric acid (HF), hydrobromic acid (HBr), and hydriodic acid (HI) at sub- and supercritical temperatures

✍ Scribed by P. Kritzer; M. Schacht; E. Dinjus

Publisher: John Wiley and Sons
Year: 1999
Tongue: German
Weight: 413 KB
Volume: 50
Category: Article
ISSN: 0947-5117
DOI: 10.1002/(sici)1521-4176(199909)50:9<505::aid-maco505>3.0.co;2-x

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The corrosion of alloy 625 (NiCr22Mo9Nb;

The corrosion of alloy 625 (NiCr22Mo9Nb; 2.4856) in high-temperature, high-pressure aqueous solutions of phosphoric acid and oxygen. Corrosion at sub- and supercritical temperatures

✍ P. Kritzer; N. Boukis; E. Dinjus 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 German ⚖ 326 KB

Corrosion of alloy 625 (NiCr22Mo9Nb; 2.4856) pressure tubes was investigated in aqueous solutions of phosphoric acid (0.05 ± 1.0 mol/kg) and oxygen (0.48 mol/kg) at temperatures up to 500 8C and pressures of 24 MPa. Reaction times were up to 185 h. At acid concentrations below 0.1 mol/kg, no corros