Structure and Properties Characterization of Ceramic Coatings Produced on Steel Using a Combined Technique
来源期刊：材料热处理学报2004年第5期
论文作者：SHEN De-jiu WANG Yu-lin XING Guang-zhong Gu Wei-Chao
关键词：Abrasion; Corrosion; Hot impact; Micro-arc oxidation; Ceramic coatings;
摘 要：Metallurgically bonded ceramic coatings were prepared on a steel surface with a combined method of arc spraying and micro-arc oxidation for the first time. Coatings were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Point and line distribution of elements of the ceramic coatings were determined using energy dispersive spectroscopy (EDS). Coatings abrasive wear resistance, corrosion resistance and hot impact property were assessed respectively. The property test results show that metallurgically bonded ceramic coatings were formed on aluminum coatings and the ceramic coatings is mainly composed of α-Al2O3、γ-Al2O3、θ-Al2O3 and a little amorphous. The coatings possess excellent abrasive wear, corrosion and hot shock resistance, which can in part be attributed to the gradual distribution of different phases from surface to the substrate.
SHEN De-jiu1，WANG Yu-lin1，XING Guang-zhong1，Gu Wei-Chao1
(1.Key Laboratory of Metastable Materials Science and Technology, Yanshan University. Qinhuangdao 066004, Hebei, P. R. China)
摘要:Metallurgically bonded ceramic coatings were prepared on a steel surface with a combined method of arc spraying and micro-arc oxidation for the first time. Coatings were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Point and line distribution of elements of the ceramic coatings were determined using energy dispersive spectroscopy (EDS). Coatings abrasive wear resistance, corrosion resistance and hot impact property were assessed respectively. The property test results show that metallurgically bonded ceramic coatings were formed on aluminum coatings and the ceramic coatings is mainly composed of α-Al2O3、γ-Al2O3、θ-Al2O3 and a little amorphous. The coatings possess excellent abrasive wear, corrosion and hot shock resistance, which can in part be attributed to the gradual distribution of different phases from surface to the substrate.
关键词:Abrasion; Corrosion; Hot impact; Micro-arc oxidation; Ceramic coatings;
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