Preparation of Metallurgical Ceramic Coatings on Steel Using a Combined Technique
来源期刊：材料保护2004年增刊第2期
论文作者：SHEN De-jiu WANG Yu-lin XING Guang-zhong Gu Wei-Chao
关键词：arc spraying; induction remelting; microarc oxidation; ceramic coatings;
摘 要：Micro-arc oxidation (MAO) is a novel surface technique for producing ceramic coatings on valve metals and their alloys. But this promising technique can not be used to steel directly. In this paper metallurgically wedded ceramic coatings was prepared on steel surface with a combined method of arc spraying and microarc oxidation for the first time. The results show that, adhesive strength of the arc spraying aluminum coatings to steel substrate was enhanced after induction remelting, and a metallurgically wedded region was formed between arc spraying coatings and steel substrate. After MAO, ceramic coatings was formed on aluminum coatings, and the ceramic coatings is mainly composed of α-Al2 O3 ,γ-Al2 O3 , θ-Al2 O3 and a little amorphous phase.
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:Micro-arc oxidation (MAO) is a novel surface technique for producing ceramic coatings on valve metals and their alloys. But this promising technique can not be used to steel directly. In this paper metallurgically wedded ceramic coatings was prepared on steel surface with a combined method of arc spraying and microarc oxidation for the first time. The results show that, adhesive strength of the arc spraying aluminum coatings to steel substrate was enhanced after induction remelting, and a metallurgically wedded region was formed between arc spraying coatings and steel substrate. After MAO, ceramic coatings was formed on aluminum coatings, and the ceramic coatings is mainly composed of α-Al2 O3 ,γ-Al2 O3 , θ-Al2 O3 and a little amorphous phase.
关键词:arc spraying; induction remelting; microarc oxidation; ceramic coatings;
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