High-Temperature Oxidation Study in a Multi-Oxidant Environment Using 18O Tracer

被引：0

作者：

Lehmusto, Juho ^{[1
]}

Ievlev, Anton ^{[2
]}

Kurley, James ^{[3
]}

Pint, Bruce A. ^{[4
]}

机构：

[1] Abo Akad Univ, Lab Mol Sci & Engn, High Temp Proc & Mat, Turku, Finland

[2] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN USA

[3] Oak Ridge Natl Lab, Nucl Energy & Fuel Cycle Div, Oak Ridge, TN 37831 USA

[4] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN USA

来源：

HIGH TEMPERATURE CORROSION OF MATERIALS | 2025年 / 102卷 / 01期

关键词：

High-temperature oxidation; Water vapor; Ni-based alloys; O-18-enriched water; FERRITIC STAINLESS-STEEL; WATER-VAPOR; THERMAL-OXIDATION; ELECTRICAL-CONDUCTIVITY; FE-CR; ALLOYS; BEHAVIOR; RESISTANCE; TITANIUM; SCALES;

D O I：

10.1007/s11085-024-10323-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The goal of this study was to use O-18-enriched water to better understand the role of H2O in high-temperature oxidation. Seven model and three commercial M-Cr and M-Cr-Al alloys were studied in air with 10% of H2O at 800 degrees C for 5 h. Oxygen from water vapor was more reactive than oxygen from the air and O-18 enriched at the outermost layers of the formed Cr- and Al-rich oxides. Alloys with Al and/or Ti additions showed signs of internal oxidation but O-18 was not enriched inside the alloy in locations with internal oxidation. Depending on the alloy Al content, the oxide went from Al oxidation beneath a chromia scale to external alumina scale formation.

引用

页码：14 / 18

页数：5

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