Testing Corrosion Resistance of Particulate Corundum, Titanium Nitride, and Eutectic Alloy TiB2/TiN in Supercritical Aqueous Fluid Environment

Corrosion resistance is studied experimentally for powder samples comprising corundum, titanium nitride, and an alloy of eutectic composition TiB 2 /TiN in the environment of supercritical aqueous fluid (SCF). The tests are carried out inside autoclave at a temperature of 400°C and at a water vapor...

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Veröffentlicht in:	Inorganic materials : applied research 2023-04, Vol.14 (2), p.397-399
Hauptverfasser:	Tarasov, A. G., Veretennikov, V. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum oxide Chemistry Chemistry and Materials Science Corrosion resistance Corrosion tests Corundum Eutectic alloys Eutectic composition Industrial Chemistry/Chemical Engineering Inorganic Chemistry Materials for Human Life Support and Environmental Protection Materials Science Titanium diboride Titanium nitride Vapor pressure Water vapor
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Zusammenfassung:	Corrosion resistance is studied experimentally for powder samples comprising corundum, titanium nitride, and an alloy of eutectic composition TiB 2 /TiN in the environment of supercritical aqueous fluid (SCF). The tests are carried out inside autoclave at a temperature of 400°C and at a water vapor pressure of 100 MPa for 100 h. It is found that Al 2 O 3 (corundum) and TiN prove to be resistant, whereas the TiB 2 phase of the eutectic alloy TiB 2 /TiN dissolves in the aqueous SCF medium. The value of the depth corrosion index is estimated.
ISSN:	2075-1133 2075-115X
DOI:	10.1134/S2075113323020442