Details

Autor(en) / Beteiligte

• Xue, Xiao-feng
• Wang, Ze-hua
• Zhou, Ze-hua
• Jiang, Shao-qun
• Cheng, Jiang-bo
• Wang, Chang-hao
• Shao, Jia

Titel

Bonding characteristics of the Al2O3-metal composite coating fabricated onto carbon steel by combustion synthesis

Ist Teil von

• International journal of minerals, metallurgy and materials, 2014-09, Vol.21 (9), p.886-893

Ort / Verlag

Beijing: University of Science and Technology Beijing

Erscheinungsjahr

2014

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The fabrication of an alumina-metal composite coating onto a carbon steel substrate by using a self-propagating high-temperature synthesis technique was demonstrated. The effects of the type and thickness of the pre-coated layer on the binding structure and surface qual- ity of the coating were systematically investigated. The macrostructure, phase composition, and bonding interface between the coating and the substrate were investigated by scanning electronic microscopy （SEM）, X-ray diffraction （XRD）, and energy-dispersive X-ray spectrometry （EDS）. The diffraction patterns indicated that the coating essentially consisted of α-Al2O3, Fe（Cr）, and FeO-Al2O3. With an increase in the thickness of the pre-coated working layer, the coating became more smooth and compact. The transition layer played an important role in enhancing the binding between the coating and the substmte. When the pre-coated working layer was 10 mm and the pre-coated transition layer was 1 ram, a compact structure and metallurgical bonding with the substrate were obtained. Thermal shock test results indicated that the ceramic coating exhibited good thermal shock resistance when the sample was rapidly quenched from 800℃ to room temperature by plunging into water.