Laser remelting of alumina tile surfaces: corrosion testing in aqueous solution
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, cilt.46, sa.4, ss.477-480, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 46 Sayı: 4
- Basım Tarihi: 2011
- Doi Numarası: 10.1179/147842209x12476568584331
- Dergi Adı: CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.477-480
- Hacettepe Üniversitesi Adresli: Evet
Özet
Laser treatment of alumina surfaces in a nitrogen gas environment was carried out and the corrosion response of the resulting surfaces is examined. The corrosion tests were carried out using 5% NaCl solution for seven days, with continuous steering by a magnetic stirrer. Metallurgical and morphological changes in the laser irradiated region are examined using the scanning electron microscope, optical microscope, X-ray diffraction. It was found that formation of nitride (AlN) compounds was evident with a compact and dense structure formed in the laser irradiated region. Moreover, a few shallow pit sites are evident around the crack tips after the static corrosion tests, especially at a high laser output power.