2024-T3铝合金DFR退化规律及疲劳断口分析
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摘要
通过对2024-T3铝合金进行不同时长条件下的预腐蚀疲劳试验,拟合得出了2024-T3铝合金DFR(Detail Fatigue Rating)随腐蚀时长的变化曲线,并通过对2024-T3铝合金预腐蚀后的疲劳断口分析,得到了2024-T3铝合金疲劳性能退化过程的一些基本特点和规律。对于掌握2024-T3铝合金的DFR退化规律,做好飞机结构的腐蚀防护有重要的参考和借鉴作用。
The degradation law of DFR of 2024-T3 aluminum alloy was determined by different pre-corrosion fatigue tests, and the fatigue fracture of 2024-T3 aluminum alloy was analyzed by scanning electron microscope, the basic characteristics and laws of degenerate failure process of 2024-T3 aluminum alloy was studied by it. It is of great reference significance for mastering the degradation law of DFR of 2024-T3 aluminum alloy and the corrosion protection of aircraft.
The degradation law of DFR of 2024-T3 aluminum alloy was determined by different pre-corrosion fatigue tests, and the fatigue fracture of 2024-T3 aluminum alloy was analyzed by scanning electron microscope, the basic characteristics and laws of degenerate failure process of 2024-T3 aluminum alloy was studied by it. It is of great reference significance for mastering the degradation law of DFR of 2024-T3 aluminum alloy and the corrosion protection of aircraft.
引文
[1]陈跃良.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,2009:150-151.CHEN YUELIANG. Corrosion control and strength evaluation of naval aircraft structure[M]. Beijing:National Defense Industry Press,2009:150-151.(in Chinese)
[2]刘轩,刘慧丛,李卫平,等. 7075铝合金在不同温度盐水环境中的腐蚀疲劳行为[J].航空学报,2014,35(10):2850-2856.LIU XUAN,LIU HUICONG,LI WEIPING,et al. Corrosion fatigue behavior of 7075 aluminum alloy at different temperatures in brine environment[J]. ACTA Aeronautica ET Astronautica Sinica,2014,35(10):2850-2856.(in Chinese)
[3]张丹峰,陈跃良.海洋环境下飞机结构疲劳性能退化规律研究[J].强度与环境,2009,36(5):39-42.ZHANG DANFENG,CHEN YUELIANG. Research on degradation rule of fatigue performance of aircraft structure under marine environment[J]. Structure and Environment Engineering,2009,36(5):39-42.(in Chinese)
[4] DOLLEY LEE WEI. The effect of pitting corrosion on fatigue life[J]. Fatigue&Fracture of Engineering Materials&Structures,2010,23(7):555-560.
[5] SANKARAN K K,PEREZ R,JATA K V. Effects of pitting corrosion on the fatigue behavior of aluminum alloy7075-T6:modeling and experimental studies[J]. Materials Science and Engineering:A,2001,297(1-2):223-229.
[6] JONES K,SHINDE S R,CLARK P N,et al. Effect of prior corrosion on short crack behavior in 2024-T3 aluminum alloy[J]. Corrosion Science,2008,50(9):2588-2595.
[7]王荣.金属材料的腐蚀疲劳[M].西安:西北工业大学出版社,2001:61-62.WANG RONG. Corrosion fatigue of metal materials[M].Xi’an:Northwestern Polytechnical University Press,2001:61-62.(in Chinese)
[8] XUE Y,KADIRI H E,HORSTEMEYER M F,et al. Micromechanisms of multistage fatigue crack growth in a high-strength aluminum alloy[J]. Acta Materialia,2007,55(6):1975-1984.
[9]刘新灵,张峥,陶春虎.疲劳断口定量分析[M].北京:国防工业出版社,2010:42-43.LIU XINLING,ZHANG ZHENG,TAO CHUNHU. Fatigue fractography quantitative analysis[M]. Beijing:National Defense Industry Press,2010:42-43.(in Chinese)
[10]贺小帆,刘文珽,王忠波,等.预腐蚀对30CrMnSiNi2A连接件疲劳寿命影响的试验研究[J].机械强度,2009,31(4):664-669.HE XIAOFAN,LIU WENTING,WANG ZHONGBO,et al. Pre-corrosion degradation influence on the fatigue life for 30CrMnSiNi2A specimen[J]. Journal of Mechanical Strength,2009,31(4):664-669.(in Chinese)
[11]卞贵学,陈跃良,张丹峰,等.基于IDS的铝合金预腐蚀疲劳寿命研究[J].航空学报,2008,29(6):1526-1530.BIAN GUIXUE,CHEN YUELIANG,ZHANG DANFENG,et al. Study on fatigue of pre-corroded aluminium alloy based on IDS[J]. ACTA Aeronautica ET Astronautica Sinica,2008,29(6):1526-1530.(in Chinese)
[12]邓景辉,陈平剑,付裕.用于预腐蚀航空铝合金材料疲劳寿命分析的腐蚀当量裂纹的抛物线模型[J].航空学报,2018(2):146-156.DENG JINGHUI,CHEN PINGJIAN,FU YU. Parabolic model of equivaient crack approach for predicting fatigue life of pre-corroded aluminum alloys[J]. ACTA Aeronautica ET Astronautica Sinica,2018(2):146-156.(in Chinese)
[13]李宴宾,陈莉,董登科,等.结构细节疲劳额定值与结构细节数之间的关系研究[J].机械强度,2012,34(6):934-938.LI YANBIN,CHEN LI,DONG DENGKE,et al. Research on the relation between DFR and structural detail numbers[J]. Journal of Mechanical Strength,2012,34(6):934-938.(in Chinese)
[14]薛景川,郭定文,邵闯. DFR、DCR和DSR疲劳损伤分析体系综论[J].结构强度研究,2006(1):1-7.XUE JINGCHUAN,GUO DINGWEN,SHAO CHUANG. The analysis system of DFR,DCR and DSR fatigue damage[J]. Study of Structural Strength,2006(1):1-7.(in Chinese)
[15]钟群鹏,赵子华.断口学[M].北京:高等教育出版社,2006:270-271.ZHONG QUNPENG,ZHAO ZIHUA. Fractography[M].Beijing:Higher Education Press,2006:270-271.(in Chinese)
[16]李旭东,穆志韬,刘治国,等. LY12CZ航空铝合金腐蚀疲劳断口研究[J].装备环境工程,2013(4):9-12.LI XUDONG,MU ZHITAO,LIU ZHIGUO,et al. Corrosion fatigue fracture analysis of LY12CZ aluminum alloy[J]. Eouipment Environmental Engineering,2013(4):9-12.(in Chinese)
[17]胡海涛,李玉龙,索涛,等. 2024铝合金振动疲劳特性及断口分析[J].航空材料学报,2013,33(4):78-83.HU HAITAO,LI YULONG,SUO TAO,et al. Vibration fatigue and fracture performance of aluminum alloy 2024[J]. Journal of Aeronautical Materials,2013,33(4):78-83.(in Chinese)
[18]李旭东,穆志韬,苏维国,等. 6A02铝合金腐蚀疲劳断口分析[J].青岛科技大学学报:自然科学版,2013,34(3):285-289.LI XUDONG,MU ZHITAO,SU WEIGUO,et al. Corrosion fatigue fracture analysis of 6A02 aluminum alloy[J].Journal of Qingdao University of Science and Technology:Natural Science Edition,2013,34(3):285-289.(in Chinese)
[2]刘轩,刘慧丛,李卫平,等. 7075铝合金在不同温度盐水环境中的腐蚀疲劳行为[J].航空学报,2014,35(10):2850-2856.LIU XUAN,LIU HUICONG,LI WEIPING,et al. Corrosion fatigue behavior of 7075 aluminum alloy at different temperatures in brine environment[J]. ACTA Aeronautica ET Astronautica Sinica,2014,35(10):2850-2856.(in Chinese)
[3]张丹峰,陈跃良.海洋环境下飞机结构疲劳性能退化规律研究[J].强度与环境,2009,36(5):39-42.ZHANG DANFENG,CHEN YUELIANG. Research on degradation rule of fatigue performance of aircraft structure under marine environment[J]. Structure and Environment Engineering,2009,36(5):39-42.(in Chinese)
[4] DOLLEY LEE WEI. The effect of pitting corrosion on fatigue life[J]. Fatigue&Fracture of Engineering Materials&Structures,2010,23(7):555-560.
[5] SANKARAN K K,PEREZ R,JATA K V. Effects of pitting corrosion on the fatigue behavior of aluminum alloy7075-T6:modeling and experimental studies[J]. Materials Science and Engineering:A,2001,297(1-2):223-229.
[6] JONES K,SHINDE S R,CLARK P N,et al. Effect of prior corrosion on short crack behavior in 2024-T3 aluminum alloy[J]. Corrosion Science,2008,50(9):2588-2595.
[7]王荣.金属材料的腐蚀疲劳[M].西安:西北工业大学出版社,2001:61-62.WANG RONG. Corrosion fatigue of metal materials[M].Xi’an:Northwestern Polytechnical University Press,2001:61-62.(in Chinese)
[8] XUE Y,KADIRI H E,HORSTEMEYER M F,et al. Micromechanisms of multistage fatigue crack growth in a high-strength aluminum alloy[J]. Acta Materialia,2007,55(6):1975-1984.
[9]刘新灵,张峥,陶春虎.疲劳断口定量分析[M].北京:国防工业出版社,2010:42-43.LIU XINLING,ZHANG ZHENG,TAO CHUNHU. Fatigue fractography quantitative analysis[M]. Beijing:National Defense Industry Press,2010:42-43.(in Chinese)
[10]贺小帆,刘文珽,王忠波,等.预腐蚀对30CrMnSiNi2A连接件疲劳寿命影响的试验研究[J].机械强度,2009,31(4):664-669.HE XIAOFAN,LIU WENTING,WANG ZHONGBO,et al. Pre-corrosion degradation influence on the fatigue life for 30CrMnSiNi2A specimen[J]. Journal of Mechanical Strength,2009,31(4):664-669.(in Chinese)
[11]卞贵学,陈跃良,张丹峰,等.基于IDS的铝合金预腐蚀疲劳寿命研究[J].航空学报,2008,29(6):1526-1530.BIAN GUIXUE,CHEN YUELIANG,ZHANG DANFENG,et al. Study on fatigue of pre-corroded aluminium alloy based on IDS[J]. ACTA Aeronautica ET Astronautica Sinica,2008,29(6):1526-1530.(in Chinese)
[12]邓景辉,陈平剑,付裕.用于预腐蚀航空铝合金材料疲劳寿命分析的腐蚀当量裂纹的抛物线模型[J].航空学报,2018(2):146-156.DENG JINGHUI,CHEN PINGJIAN,FU YU. Parabolic model of equivaient crack approach for predicting fatigue life of pre-corroded aluminum alloys[J]. ACTA Aeronautica ET Astronautica Sinica,2018(2):146-156.(in Chinese)
[13]李宴宾,陈莉,董登科,等.结构细节疲劳额定值与结构细节数之间的关系研究[J].机械强度,2012,34(6):934-938.LI YANBIN,CHEN LI,DONG DENGKE,et al. Research on the relation between DFR and structural detail numbers[J]. Journal of Mechanical Strength,2012,34(6):934-938.(in Chinese)
[14]薛景川,郭定文,邵闯. DFR、DCR和DSR疲劳损伤分析体系综论[J].结构强度研究,2006(1):1-7.XUE JINGCHUAN,GUO DINGWEN,SHAO CHUANG. The analysis system of DFR,DCR and DSR fatigue damage[J]. Study of Structural Strength,2006(1):1-7.(in Chinese)
[15]钟群鹏,赵子华.断口学[M].北京:高等教育出版社,2006:270-271.ZHONG QUNPENG,ZHAO ZIHUA. Fractography[M].Beijing:Higher Education Press,2006:270-271.(in Chinese)
[16]李旭东,穆志韬,刘治国,等. LY12CZ航空铝合金腐蚀疲劳断口研究[J].装备环境工程,2013(4):9-12.LI XUDONG,MU ZHITAO,LIU ZHIGUO,et al. Corrosion fatigue fracture analysis of LY12CZ aluminum alloy[J]. Eouipment Environmental Engineering,2013(4):9-12.(in Chinese)
[17]胡海涛,李玉龙,索涛,等. 2024铝合金振动疲劳特性及断口分析[J].航空材料学报,2013,33(4):78-83.HU HAITAO,LI YULONG,SUO TAO,et al. Vibration fatigue and fracture performance of aluminum alloy 2024[J]. Journal of Aeronautical Materials,2013,33(4):78-83.(in Chinese)
[18]李旭东,穆志韬,苏维国,等. 6A02铝合金腐蚀疲劳断口分析[J].青岛科技大学学报:自然科学版,2013,34(3):285-289.LI XUDONG,MU ZHITAO,SU WEIGUO,et al. Corrosion fatigue fracture analysis of 6A02 aluminum alloy[J].Journal of Qingdao University of Science and Technology:Natural Science Edition,2013,34(3):285-289.(in Chinese)