期刊
MATERIALS LETTERS
卷 62, 期 10-11, 页码 1715-1717出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2007.09.077
关键词
Cr-N coating; corrosion; aluminum matrix composite
Cr-N coatings were deposited on alumina borate whisker reinforced pure aluminum matrix composite substrates by radio frequency (RF) magnetron sputtering. The phase and chemical state of coatings were characterized using X-ray photoelectron spectroscope and X-ray diffraction techniques. Corrosion behaviors were investigated in 3.5%NaCl solution at room temperature. Potentiodynamic polarization curves confirm that the Cr-N coated composite shows not only much lower susceptibility to pitting but also significantly improved corrosion resistance in comparison with untreated composite. (c) 2007 Elsevier B.V. All rights reserved.
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