大连海事大学学报 >
2021 , Vol. 47 >Issue 1: 119 - 125
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2021.01.014
电参数和反应时间对微弧氧化热障陶瓷层制备的影响
收稿日期: 2020-09-28
修回日期: 2020-10-29
网络出版日期: 2020-10-29
基金资助
交通运输部应用基础研究项目(2015-329-225-230).
Effects of electrical parameters and reaction time on preparation of thermal barrier ceramic coating by micro arc oxidation
Received date: 2020-09-28
Revised date: 2020-10-29
Online published: 2020-10-29
孙长飞 , 李更天 , 马春生 . 电参数和反应时间对微弧氧化热障陶瓷层制备的影响[J]. 大连海事大学学报, 2021 , 47(1) : 119 -125 . DOI: 10.16411/j.cnki.issn1006-7736.2021.01.014
In order to solve the problems of complex operation, high cost and poor maintainability of traditional piston top protection technology, the thermal barrier ceramic coating was prepared on the surface of cast aluminum alloy (ZL109) by micro arc oxidation technology to resist the thermal shock and high temperature corrosion of piston top. Based on the previous work, the effects of power frequency, duty cycle and reaction time on the preparation of thermal barrier ceramic coating were studied. Experiments show that the surface of the ceramic coating is smoother, the pore defects are rare, and the film is dense under the conditions of 400 Hz power frequency, 40% duty cycle and 20 min reaction time. The results show that micro arc oxidation technology has a good application prospect in the field of piston top surface protection.
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