Abstract
The oxidation behavior of Hastelloy-XR alloy was investigated to obtain the optimum surface condition for corrosion resistant glass-coatings. The surface morphology of oxide scales changed significantly with the variation of temperature and oxygen partial pressure (po2). The oxidation kinetics was mainly parabolic independent of oxidation conditions. The oxide scales were consisted of inner Cr2O3 and outer spinel layers. The phase components of spinel layers were Mn1.5Cr1.5O4 and (Mn,Ni)(Cr,Fe)2O4 for the oxygen partial pressures po2<10 kPa and po2>10 kPa, respectively. The optimum oxidation condition to obtain an oxide scale for the well-adhered glass-coating to the substrate was 1248 K and po2=0.01 kPa for the oxidation time of 43 ks.
| Original language | English |
|---|---|
| Pages (from-to) | 19-22 |
| Number of pages | 4 |
| Journal | Journal of Materials Science and Technology |
| Volume | 19 |
| Issue number | 1 |
| Publication status | Published - 2003 Jan 1 |
Keywords
- Glass coating
- Hastelloy-XR alloy
- Oxidation
ASJC Scopus subject areas
- Ceramics and Composites
- Mechanics of Materials
- Mechanical Engineering
- Polymers and Plastics
- Metals and Alloys
- Materials Chemistry