Effect of the conditions of REM microalloying of steel on the corrosion activity of nonmetallic inclusions
| Autor: | A. V. Pavlov, D. A. Movenko, O. A. Bytsenko, G. I. Kotel’nikov |
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| Rok vydání: | 2015 |
| Předmět: |
Cerium oxide
Materials science 020502 materials Metallurgy Metals and Alloys chemistry.chemical_element 02 engineering and technology Calcium Microanalysis Corrosion Metal chemistry.chemical_compound Cerium 0205 materials engineering chemistry Aluminium visual_art visual_art.visual_art_medium Calcium aluminates |
| Zdroj: | Russian Metallurgy (Metally). 2015:880-885 |
| ISSN: | 1555-6255 0036-0295 |
| Popis: | Experimental heats of low-alloy steel are performed under various conditions of rare-earth metal microalloying and aluminum and calcium deoxidation. Electron-probe microanalysis of nonmetallic inclusions and a metallographic investigation of a metal are used to show that, when interacting with water, nonmetallic cerium oxide inclusions do not form hydrates and, correspondingly, are not aggressive. When aluminum, calcium, and cerium additions are sequentially introduced into a melt, a continuous cerium oxide shell forms on calcium aluminates, protects corrosive nonmetallic inclusions against interaction with water, and weakens local metal corrosion. |
| Databáze: | OpenAIRE |
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