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| Corrosion Fatigue Fracture Failure Analysis of High-strength Aluminum Alloy |
| ZHANG Zheng-gui |
| 沈阳大学机械工程学院材料科学系 |
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Cite this article:
ZHANG Zheng-gui. Corrosion Fatigue Fracture Failure Analysis of High-strength Aluminum Alloy. J Chin Soc Corr Pro, 2008, 28(1): 48-52 .
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Abstract The fractography of high strength aluminum alloy LY12CZ riveted specimen with coating was investi?鄄gated after corrosion fatigue tests under stress in 3.5% NaCl solution. Fracture features like fatigue striation， dimple， cleavage， and intergranular fracture were observed. The corrosion fatigue mechanism was controlled by anodic dissolution. The failure mode was multi-crack fracture. Cracks were initiated from every rivet holes. The principal crack with longer propagation length and varying positions finally converged with other cracks and led to fatigue fracture.
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Received: 16 May 2006
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[1]Parkings R N.Gangloff R P,Ives M B,ed.Environment-Induced Cracking of Metals[M].Houston,Tx:NACE,1990,1
[2]Zhang B,Zhang Z G,Han E H,Ke W,et al.Study of corrosion fatigue for LY12CZ aluminum alloy riveted lap-splice joints[J].Acta Metal.Sin.,2000,36(8):842-846(张波,张正贵,韩恩厚,柯伟等.LY12CZ铝合金铆接联接件在3.5%NaCl溶液中的腐蚀疲劳失效行为研究[J].金属学报,2000,36(8):842-846)
[3]Segerfrojd G,Blom A F.Fatigue behavior of mechanical joints:A state of the art overview[A].Proceedings of the Seventh International Fatigue Congress[C].Beijing,1999,1:41
[4]Newman J C,Jr,Harris C E,Piascik R S,Dawicke D S.Methodology for predicting the onset of widespread fatiguedamagein lap-splice joints and structure[A].Proceedings of the Seventh International Fatigue Congress[C].Beijing,1999,1:81
[5]Zhang B.The corrosion fatigue study on LY12CZ aluminum alloy and its rivet joint in sodium chloride solution[D].Shengyang:Institute of Metal Research,Chinese Academy of Sciences,2001(张波.LY12CZ铝合金及其铆接联接件在氯化钠溶液中的腐蚀疲劳研究[D].沈阳:中国科学院金属研究所,2001)
[6]Liu Y M,Jiang J L,Shan Y S.Some effects on fatigue properties under protection/unprotection coating systems[J].Acta Aeronautica et Astronautica Sinica,1998,19(4):481-485(刘一鸣,蒋军亮,山永寿.环境对有/无防护涂层结构疲劳性能的影响[J].航空学报.1998,19(4):481-485)
[7]Zhang Z G,Zhang B,Han E H,et al.Influence og stress amplitude and corrosive factors on corrosion fatigue life of riveted joints[J].J.Mechanical Strength,2001,23(2):243-245(张正贵,张波,韩恩厚等.应力与腐蚀因素对连接件腐蚀疲劳寿命交互作用的研究[J].机械强度,2001,23(2):243-245)
[8]Zhang Z G.The investigation of corrosion fatigue on riveted joiots[D].Shengyang:Northeastern University,2000(张正贵.连接件腐蚀疲劳性能的研究[D].沈阳:东北大学,2000)
[9]Liu Z M,Zeng F Y,Lu L J,et al.An effect of corrosion environment on fatigue properties of LY12CZ Al-Alloy typical bolted lap joints[J].J.Chin.Soc.Corros.Prot.,2004,24(5):267-271(刘祖铭,曾凡阳,鲁礼菊等.环境对LY12CZ铝合金典型螺接件疲劳性能的影响[J].中国腐蚀与防护学报,2004,24(5):267-271)
[10]Chang H,Han E H,Wang J Q,et al.Influence of coating of covering airplane on corrosion fatigue life of aluminum alloy LY12CZ[J].J.Chin.Soc.Corros.Prot.,2006,25(1):34-36(常红,韩恩厚,王俭秋等.飞机蒙皮涂层对LY12CZ铝合金腐蚀疲劳寿命的影响[J].中国腐蚀与防护学报,2006,25(1):34-36)
[11]Li D,Zhang Q,Wang D Z,et at.Study of the simulated test for the intergranular corrosion of LY12CZ Al alloy[J].J.BeijingUniversity of Aeronautics and Astronautics,1998,24(1):1-3(李荻,张琦,王弟珍等.LY12CZ铝合金晶间腐蚀模拟试验研究[J].北京航空航天大学学报,1998,24(1):1-3)
[12]Zhang D.The trace Analysis of Mechanical Failure[M].Beijing:Defense Industry Press,1996(张栋.机械失效的痕迹分析[M].北京:国防工业出版社,1996)
[13]Jiang Z G.Corrosion Fatigue of Airplane Structure[M].Beijing:Aviation Industry Press,1992(蒋祖国.飞机结构腐蚀疲劳[M].北京:航空工业出版社,1992)
[14]Wu Y S,Xie J H,Wang X Y,et at.Initiation mechanism of corrosion fatigue crack for stainless steel in chloride solution[J].Corros.Sci.Prot.Technol.,1999,11(1):24-31(吴荫顺,谢建辉,汪轩义等.氯化物溶液中不锈钢腐蚀疲劳裂纹初始萌生的过程机理[J].腐蚀科学与防护技术,1999,11(1):24-31) |
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