Effects of current density on the microstructure and properties of electrodeposited black Cr-C nano-composite coatings on steel substrate
(0) Eelectrodeposited black Cr-C nano-composite coating was prepared on the steel substrate and the effects of current density on the properties of the composite coating were studied in the present paper. The surface morphology and phase composition of the composite coatings were analyzed by means of scanning electronic microscopy (SEM) and X-ray diffractometer (XRD). Microhardness was determined by micrometer and the wear resistance of the coatings was evaluated by CETR using a universal materials tester (UMT). The results showed that formed under the condition of current density of 100A/dm2, temperature of 15℃, and the optimum particle content in electrolyte was 10g/l. The maximum microhardness of black Cr-C nano-composite coating was 10.8 Gpa, simutaneously, the wearing resistance of the coating improved significantly compared to the steel substrate.
Electro-deposition Cr-C Nano-composite Coating Microstructure Microhardness Wear resistance
Li. Xuesong Yang. Yue Yang. You Wu. Hua
Key Laboratory of Advanced Structural Materials, Ministry of Education,Changchun University of Techn Key Laboratory of Advanced Structural Materials, Ministry of Education, Changchun University of Tech
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
641-646
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）