飞机结构加速腐蚀与自然腐蚀
Corrosion of Aircraft Structure Material in Accelerated Simulating Environment and Service Environment
摘 要
分析了导致海军飞机结构腐蚀的主要因素, 基于飞机地面停放环境谱, 对航空LY12CZ铝合金件进行了多个当量年限的加速腐蚀试验和热带海洋环境下的暴露试验; 对试件表面涂层、金属基体材料腐蚀情况进行观察和测量; 根据腐蚀评价指标对试验件腐蚀状况进行了分析比较。结果表明, 实验室加速腐蚀结果符合飞机外场服役的腐蚀特征, 而材料直接暴露在海洋环境中比外场腐蚀速度更快。对腐蚀深度和腐蚀失重进行测量, 给出腐蚀深度的分布特性和加速腐蚀与自然暴露的当量关系, 对失重规律进行了研究。
加速腐蚀试验
腐蚀当量关系
飞机结构
LY12CZ aluminum alloy
accelerated corrosion test
corrosion equivalent relationship
aircraft structure
Abstract
The important factors inducing corrosion damage of navy aircrafts were analyzed. LY12CZ specimens were tested by the accelerated corrosion testing in laboratory and exposure testing during warship cruising in tropical marine based on the spectrua of military airport ground environments. The corrosion characteristics of the coating and base material were inspected and corrosion damage dimension was measured after the accelerated corrosion and the exposure testing on ship. The results showed that the corrosion damage characteristic of the specimens in the laboratory test was consistent with that in service situations. The corrosion rate of specimens exposed to ocean environment was larger than that in out-door field. The equivalent relationship between the distribution character of the corrosion depth and accelerated corrosion to natural exposure was obtained. The law of weight loss was studied.
中图分类号 TG171 V252
所属栏目 应用技术
基金项目 国家自然科学基金(50675221, 51075394); 总装十一五预研(51327030104)。
收稿日期 2011/3/10
修改稿日期 2011/5/13
网络出版日期
作者单位点击查看
备注胡建军, 博士研究生,
引用该论文: HU Jian-jun,CHEN Yue-liang,BIAN Gui-xue,ZHANG Yong,YI Lin. Corrosion of Aircraft Structure Material in Accelerated Simulating Environment and Service Environment[J]. Corrosion & Protection, 2011, 32(11): 900
被引情况:
【1】张胜,张腾,何宇廷,李昌范, "EXCO溶液与沿海大气环境中铝合金的剥蚀损伤等效关系模型",腐蚀与防护 37, 294-299(2016)
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参考文献
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【2】陈跃良, 金平, 林典雄, 等. 海军飞机结构腐蚀控制及强度评估[M]. 北京: 国防工业出版社, 2009: 14-16.
【3】谭晓明, 穆志涛, 张丹峰, 等. 飞机结构当量加速腐蚀试验研究[J]. 装备环境工程, 2008, 5(2):9-11.
【4】刘文珽, 李玉海. 飞机结构日历寿命体系评定技术[M]. 北京: 航空工业出版社, 2004: 84-104.
【5】刘文珽, 郑旻仲, 费斌军, 等. 概率断裂力学与概率损伤容限/耐久性[M]. 北京: 北京航空航天大学出版社, 1999: 47-49.
【6】Sheikh A K, Booh J K, Hansen D A. Statistical modeling of pitting corrosion and pipeline reliability[J]. Corrosion, 1990, 46(3):190-197.
【7】Ailor W H. Atmospheric Corrosion[M]. New York, John Wiley and Sons:1982.
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