Microstructure and mechanical properties of chromium oxide coatings

被引：0
|
作者：
Xiaolu Pang
Kewei Gao
Alex A. Volinsky
机构：
[1] University of Science and Technology Beijing,Department of Materials Physics and Chemistry
[2] University of South Florida,Department of Mechanical Engineering
来源：
Journal of Materials Research | 2007年 / 22卷
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D O I：
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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.
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页码：3531 / 3537
页数：6
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