航空学报 > 2008, Vol. 29 Issue (4): 873-879

飞机日历寿命试验的介质成分确定和加速方法

张福泽1,叶序彬2,宋钧2,郭洪全2,阎勇1   

  1. 1.北京航空工程技术研究中心 2.北京航空材料研究院
  • 收稿日期:2007-04-15 修回日期:2008-01-28 出版日期:2008-07-10 发布日期:2008-07-10
  • 通讯作者: 张福泽1

Corrosion Medium Composition and Accelerated Corrosion Method of Aircraft Calendar Life Test

Zhang Fuze1, Ye Xubin2, Song Jun2, Guo Hongquan2, Yan Yong1   

  1. 1.Beijing Aeronautical Technology Research Center 2.Beijing Institute of Aeronautical Materials
  • Received:2007-04-15 Revised:2008-01-28 Online:2008-07-10 Published:2008-07-10
  • Contact: Zhang Fuze1

摘要:

针对飞机使用环境,研究了飞机日历寿命试验中的腐蚀介质成分确定方法和加速方法。进行了5 ℃,25 ℃,50 ℃这3种温度和4种介质浓度下的30CrMnSiA结构钢和LY12CZ铝合金两种金属的纯腐蚀和腐蚀疲劳试验研究。得到的试验曲线表明,它们的腐蚀动力学规律都近似遵循线性关系,每条曲线的腐蚀速度也基本保持不变。从而认为,飞机日历寿命试验介质成分最好选用飞机所在机场使用环境的各腐蚀介质成分,加速腐蚀试验的最好方法,就是在此机场的各介质成分上加权,加权越高,加速越快。这个结论得到了试验验证。

关键词: 材料失效与保护, 腐蚀疲劳, 加速腐蚀试验方法, 日历寿命

Abstract:

For the environment of the aircraft in use, the method of the corrosion medium composition and accelerated corrosion are studied. At 5 ℃, 25 ℃ and 50 ℃ separately, under four kinds of corrosion medium concentration, corrosion tests and corrosion fatigue tests of 30CrMnSiA steel and LY12CZ aluminum alloy are studied. The test curves show that the corrosion kinetics rules of them have followed linear relationship approximately and the corrosion rate of each cure basically remains unchanged. Thereby, we think that the corrosion medium composition of the environment in aerodrome is the best choice to aircraft calendar life test and the best mean of accelerated corrosion test is multiplying the corrosion medium composition of the environment in aerodrome, as the multiple become larger, the rate of corrosion is quicker. This conclusion is approved in this article.

Key words: expiration , and , protect , of , material,  , corrosion , fatigue,  , accelerated , corrosion , test,  , calendar , life

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