Affiliation:
1. Changwon National University
Abstract
AlON-Al2O3coatings were prepared on Al2021 alloy by the electrolytic plasma processing (EPP) method. NaNO2, NaNO3and NH4NO3were chosen as nitrogen supply agents. The nitrogen inducing effect was studied by a combined composition and structure analysis of the coating layer carried out by X-ray diffractometer (XRD), scanning electron microscopy (SEM) for the specimens EPP-treated at room temperature for 15 min under a hybrid voltage of 260V DC plus 200V AC (50Hz) power. Microhardness tests and wear tests were carried out to correlate the evolution of microstructure and resulting mechanical properties.
Publisher
Trans Tech Publications, Ltd.
Reference19 articles.
1. G. Yamaguchi and H. Yanagida, Bull. Chem. Soc. Jpn., 32 (1959).
2. G. Long and L.M. Foster, J. Am. Ceram. Soc., 44 (1961).
3. I. Adams, T.R. Au Coin and G.A. Wolff, J. Electrochem. Soc., 109 (11) (1962).
4. A. Lejus, Rev. Int. Hautes Temp. Refract., 1(1) (1964).
5. A.L. Lefebvre, J.C. Giles and R. Collongues, Mater. Res. Bull., 7(6) (1972).