A chromium nitride coating on pure polycrystalline nickel was obtained by dynamical ion beam mixing (DIBM). The chemical composition and microstructure of the surface layer were examined by Auger electron spectroscopy and transmission electron Microscopy, and their effects on corrosion behaviour were studied. It was found that the DIBM CrN specimen surface region consisted of amorphous Cr-N-C, Cr2(CN), Cr, CrN, Cr2N, Ni-Cr amorphous phases and a dislocation cell structure. Three-sweep potentiokinetic measurement of the specimens in de-aerated CH3COOH-CH3COONa (pH 6.7, 25-degrees-C) showed that the critical current density and minimum anodic passivating current density are lowered by two orders of magnitude for the DIBM CrN specimens. The reasons for the improvement in corrosion resistance are discussed with respect to morphology and the microstructure of DIBM CrN.
部门归属
chen, zl (reprint author), acad sinica,inst met res,fatigue & fracture mat lab,shenyang 110015,peoples r china
Z. L. Chen,S. Patu. MICROSTRUCTURE AND CORROSION BEHAVIOR OF CHROMIUM NITRIDE GROWN BY DYNAMIC ION-BEAM MIXING[J]. Surface & Coatings Technology,1992,51(1-3):222-226.
APA
Z. L. Chen,&S. Patu.(1992).MICROSTRUCTURE AND CORROSION BEHAVIOR OF CHROMIUM NITRIDE GROWN BY DYNAMIC ION-BEAM MIXING.Surface & Coatings Technology,51(1-3),222-226.
MLA
Z. L. Chen,et al."MICROSTRUCTURE AND CORROSION BEHAVIOR OF CHROMIUM NITRIDE GROWN BY DYNAMIC ION-BEAM MIXING".Surface & Coatings Technology 51.1-3(1992):222-226.
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