航空学报 > 2016, Vol. 37 Issue (2): 390-396   doi: 10.7527/S1000-6893.2015.0339

金属涂层的日历寿命计算公式和试验方法

张福泽   

  1. 空军装备研究院航空装备研究所, 北京 100076
  • 收稿日期:2015-09-30 修回日期:2015-12-14 出版日期:2016-02-15 发布日期:2015-12-22
  • 通讯作者: 张福泽,男,中国工程院院士。主要研究方向:飞机寿命。Tel:010-66713310,E-mail:zhangfuzemail@163.com E-mail:zhangfuzemail@163.com

Calculation formula and test method of calendar life of metallic coating

ZHANG Fuze   

  1. Aeronautical Armaments Research Institute, Equipment Academy of Air Force, Beijing 100076, China
  • Received:2015-09-30 Revised:2015-12-14 Online:2016-02-15 Published:2015-12-22

摘要:

通过涂层腐蚀损伤试验研究,发现涂层有与金属腐蚀温度-时间(T-H)曲线一致的T-H曲线,而且还有相同的使用环境谱。由于金属日历寿命计算公式正是根据T-H曲线和使用环境谱推导出来的,因此涂层的日历寿命计算公式与金属日历寿命计算公式相同。通过试验研究,还发现金属涂层对试验温度敏感且有规律,由此获得涂层日历寿命的有效试验方法是提高试验温度。为验证上述结论,进行了铝涂层日历寿命的理论计算和试验实例对比研究。

关键词: 金属涂层, 日历寿命, 温度-时间曲线, 腐蚀损伤, 环境谱

Abstract:

Through research on the test of coating corrosion damage, this paper finds out that the temperature-time(T-H) curve of coating corrosion and the T-H curve of metallic corrosion are consistent, and they have the same service environment spectrum. Since the calculation formula of metallic calendar life is deduced from the distribution regularities and service environment spectrum of T-H curve, the calculation formula of coating's calendar life is the same as that of the metallic calendar life. It is also revealed that metallic coating is sensitive to test temperature with some regularities. Hence, an effective test method to have the calendar life of coating is to increase the temperature of the test. To verify the above-mentioned conclusion, a comparative study of theoretical calculation and test of the calendar life of aluminum coating is also conducted.

Key words: metallic coating, calendar life, temperature-time curve, corrosion damage, environment spectrum

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