Oxidation resistance of Ni-Co-ZrO2 composite coatings

摘要：

　　Ni-Co alloy and ZrO2 particles were successfully codeposited on middle carbon steel substrate by electrodeposition.The oxidation resistance was evaluated by weight gains during high temperature oxidation test.The results indicate that,when the oxidation temperature is 573 K or 873 K,middle carbon steel,Ni-Co coating and Ni-Co-ZrO2 composite coating show lower weight gain.While the temperature is up to 1173 K,Ni-Co-ZrO2 composite coating possesses better oxidation resistance than Ni-Co coating and 45 steel.The reason may be that,the dispersive ZrO2 particles in the Ni-Co matrix reduce the effective area of Ni-Co alloy contacting with ambient oxygen,and new phases like NiO and CoO further prevent inward oxygen diffusion.

关键词： Electrodeposition Composite coating Ni-Co-ZrO2 Oxidation resistance

作者: Wan Chang SUN

作者单位: School of Materials Science and Engineering,Xian University of Science and Technology,Xian,Shaanxi 710054,P.R.China

会议类型: 国际会议

会议名称: the international conference on Frontier of Nanoscience and Technology (2011纳米科学与技术国际会议(ICFNST 2011))

会议地点: 大理

会议语种:英文

页码: 799-803

在线出版日期: 2011-08-18（万方平台首次上网日期，不代表论文的发表时间）