Microstructure and mechanical properties of chromium oxide coatings

被引：0
|
作者：
Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China [1 ]
不详 [2 ]
机构：
来源：
J Mater Res | 2007年 / 12卷 / 3531-3537期
关键词：
Adhesion - Coatings - Elastic moduli - Hardness - High resolution transmission electron microscopy - Magnetron sputtering - Mechanical properties - Microstructure - Nanoindentation - Wear resistance - X ray diffraction analysis - X ray photoelectron spectroscopy;
D O I：
10.1557/jmr.2007.0445
中图分类号：
学科分类号：
摘要：
Chromium oxide coatings were deposited on low-carbon steel by radiofrequency reactive magnetron sputtering at different oxygen flux values. X-ray diffraction, x-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy were used to investigate the microstructure of chromium oxide coatings. Varying oxygen flux changed the coating microstructure; as with increasing oxygen flux the chromium oxide coating undergoes amorphous-to-crystalline transformation. The coating developed strong (300) texture at higher oxygen flux. Hardness, elastic modulus, wear resistance, and adhesion were investigated by nanoindentation and pin-on-disk tests. With changes in the coating microstructure as a function of increased oxygen flux, hardness, elastic modulus, and wear resistance were improved, but its adhesion was weakened. © 2007 Materials Research Society.
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