盐雾加速腐蚀与沿海大气环境的腐蚀等效关系研究
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摘要
对飞机结构常用的LY12-CZ铝合金在我国海南万宁开展自然暴露试验,分析了自然环境下该型号铝合金腐蚀规律与寿命退化规律。收集整理了该地区的环境数据,通过权重法编制了该地区的地面停放环境谱。在编制的加速环境谱下,对LY12-CZ铝合金进行加速腐蚀试验,通过腐蚀特征等效和寿命退化规律等效的方法确定编制的加速腐蚀环境谱的加速系数。为研究铝合金结构在服役环境下的寿命变化规律提供了理论基础。
The fatigue feature of LY12-CZ aluminum alloy under atmospheric corrosion environment is studied and the corrosion law is analyzed. Atmosphere data of the service place is collected and the accelerating environment spectrum is built through weighting analysis. The accelerating experiment of LY12-CZ aluminum alloy is carried out and the accelerating factor of spectrum is calculated by analyzing the effective theory of corrosion and declining rule of fatigue life.
The fatigue feature of LY12-CZ aluminum alloy under atmospheric corrosion environment is studied and the corrosion law is analyzed. Atmosphere data of the service place is collected and the accelerating environment spectrum is built through weighting analysis. The accelerating experiment of LY12-CZ aluminum alloy is carried out and the accelerating factor of spectrum is calculated by analyzing the effective theory of corrosion and declining rule of fatigue life.
引文
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[15]陈跃良,吕国志,段成美.服役条件下飞机结构腐蚀损伤概率模型研究[J].航空学报,2002,23(3):249-251.CHEN Yue Liang,LU Guo Zhi,DUAN Cheng Mei.A probability model for the corrosion damage of aircraft structure in service environment[J].Acta Aeronautica et Astronautica Sinica,2002,23(3):249-251(In Chinese).
[16]钟群鹏,赵子华.断口学[M].北京:高等教育出版社,2000:147-149.ZHONG Qun Peng,ZHAO Zi Hua.Fractography[M].Beijing:Higher Education Press,2000:147-149(In Chinese).
[17]张福泽.金属腐蚀“3等线”和试验日历寿命确定方法[J].航空学报,2016,37(2):371-380.ZHANG Fu Ze.Metallic corrosion“3 equal-line”and formula of test calendar life and its determination method[J].Acta Aeronautica et Astronautica Sinica,2016,37(2):371-380(In Chinese).
[2]Lashermes M,Gulhaudis A,Reboul M,et al.30-year atmospheric corrosion of aluminum alloys in France[A].W H Ailor.Atmospheric Corrosion[M].New York:John Wiley and Sons,1982.
[3]Morcillo M,Simancas J,Corvo F,et al.Behavior of painted aluminum in Ibero-American atmospheres,Revista de Metalurgia(Madrid),2003,SPEC:151-156.
[4]周希沅.中国飞机结构腐蚀分区和当量环境谱[J].航空学报,1998,20(3):230-233.ZHOU Xi Yuan.Corrosion demarcation of airplane structures of China and equivalence environmental spectrum[J].Acta Aeronautica et Astronautica Sinica,1999,20(3):230-233(In Chinese).
[5]安百刚,张学元,韩恩厚,等.铝和铝合金的大气腐蚀研究现状[J].中国有色金属学报,2001,11(z2):11-15.AN Bai Gang,ZHANG Xue Yuan,HAN En Hou,et al.Research situation of atmospheric corrosion of aluminum and aluminum alloys[J].The Chinese Journal of Nonferrous Metals,2001,11(z2):11-15(In Chinese).
[6]Sun S Q,Zheng Q F,Wen J G,et al.Long-term atmospheric corrosion behavior of aluminum alloys 2024 and 7075 in urban,coastal and industrial environments[J].Corrosion Science,2009,51(4):719-727.
[7]Sun S Q,Zheng Q F,Li D F,et al.Exfoliation corrosion of extruded 2024-T4 in the coastal environments in China[J].Corrosion Science,2011,53(8):2527-2538.
[8]孙霜青郑弃非,李德富,等.LY12铝合金的长期大气腐蚀行为[J].中国腐蚀与防护学报,2009,29(6):442-446.SUN Shuang Qing,ZHENG Qi Fei,LI De Fu,et al.Long-team atmospheric corrosion behavior of LY12 aluminum alloy[J].Journal of Chinese Society For Corrosion and Protection,2009,29(6):442-446(In Chinese).
[9]孙霜青,郑弃非,李德富,等.带包铝层的LC4铝合金长期大气腐蚀行为研究[J].稀有金属,2009,33(4):515-520.SUN Shuang Qing,ZHENG Qi Fei,LI De Fu,et al.Long-term atmospheric corrosion behavior of alclad lca aluminium alloy[J].Chinese Journal of Rare Metals,2009,33(4):515-520(In Chinese).
[10]Wang B B,Wang Z Y,Han W,et al.Atmospheric corro-sion of aluminium alloy 2024-T3 exposed to salt lake environment in Western China[J].Corrosion Science,2012,59(6):63-70.
[11]宋恩鹏,刘文珽,杨旭.飞机内部腐蚀关键部位加速试验环境谱研究[J].航空学报,2006,27(4):646-649.SONG En Peng,LIU Wen Ting,YANG Xu.Study on accelerated corrosion test environment spectrum for internal aircraft structure[J].Acta Aeronautica et Astronautica Sinica,2006,27(4):646-649(In Chinese).
[12]周希沅.飞机结构的当量环境谱与加速试验谱[J].航空学报1996,17(5):613-616.ZHOU Xi Yuan.Equity environmental spectrum and speed test spectrum[J].Acta Aeronautica et Astronautica Sinica,1996,17(5):613-616(In Chinese).
[13]刘道庆,吴超,陈亮.飞机腐蚀疲劳典型部位地面停放局部环境谱及当量折算[J].飞机设计2011,31(5):15-17.LIU Dao Qing,Wu Chao,CHEN Liang.Ground parking local environment spectrum&equivalence converting of aircraft typical parts[J].Aircraft Design,2011,31(5):15-17(In Chinese).
[14]杨孚标,肖加余,曾竟成,等.阳极化处理对铝合金表面粘接性能的影响[J].机械工程材料,2006,30(8):52-56.YANG Fu Biao,XIAO Jia Yu,ZENG Jing Cheng,et al.The effect of anodizing of aluminum alloy on its adhesive bonding[J].Materials for Mechanical Engineering,2006,30(8):52-56(In Chinese).
[15]陈跃良,吕国志,段成美.服役条件下飞机结构腐蚀损伤概率模型研究[J].航空学报,2002,23(3):249-251.CHEN Yue Liang,LU Guo Zhi,DUAN Cheng Mei.A probability model for the corrosion damage of aircraft structure in service environment[J].Acta Aeronautica et Astronautica Sinica,2002,23(3):249-251(In Chinese).
[16]钟群鹏,赵子华.断口学[M].北京:高等教育出版社,2000:147-149.ZHONG Qun Peng,ZHAO Zi Hua.Fractography[M].Beijing:Higher Education Press,2000:147-149(In Chinese).
[17]张福泽.金属腐蚀“3等线”和试验日历寿命确定方法[J].航空学报,2016,37(2):371-380.ZHANG Fu Ze.Metallic corrosion“3 equal-line”and formula of test calendar life and its determination method[J].Acta Aeronautica et Astronautica Sinica,2016,37(2):371-380(In Chinese).