[1]余海坤,尤晓风,吕 品,等.doi: 10.3969/j.issn.1001-3849.2026.03.010液相环境下6061-T6铝合金原位腐蚀疲劳寿命变化[J].电镀与精饰,2026,(03):77-84.
　YU HaikunYOU XiaofengLYU PinWANG YushuCHEN ZhuoSONG Xiaoxiao.In-situ corrosion fatigue life variation of 6061-T6 aluminum alloy in liquid phase environment[J].Plating & Finishing,2026,(03):77-84.
点击复制

doi: 10.3969/j.issn.1001-3849.2026.03.010液相环境下6061-T6铝合金原位腐蚀疲劳寿命变化()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年03
页码:
77-84
栏目:
出版日期:
2026-03-31

文章信息/Info

Title:
In-situ corrosion fatigue life variation of 6061-T6 aluminum alloy in liquid phase environment
作者:
余海坤1; 尤晓风1; 吕 品1; 王玉树2; 陈 卓2; 宋肖肖2
(1. 国家石油天然气管网集团有限公司 西北分公司银川输油气分公司,宁夏 银川 750001; 2. 中国民航大学 中欧航空工程师学院,天津 300300)
Author(s):
YU Haikun1YOU Xiaofeng1LYU Pin1WANG Yushu2CHEN Zhuo2SONG Xiaoxiao2
(1. Northwest Company, Yinchuan Oil & Gas Transmission Sub-Company, China Oil & Gas Pipeline Network Corporation (PipeChina), Yinchuan 750001, China; 2. Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China)
关键词:
6061-T6铝合金; 液相原位; 腐蚀疲劳; 疲劳寿命变化
Keywords:
6061-T6 aluminum alloy;  liquid phase in situ;  corrosion fatigue;  fatigue life variation
分类号:
TB31 TQ153.2
文献标志码:
A
摘要:
结构件在服役过程中受到交变载荷和腐蚀因素的共同影响，会大幅缩短其服役寿命。针对6061-T6铝合金，通过液相环境下最大载荷为230 MPa，应力比为0.1的原位腐蚀-疲劳试验，结合电化学测试、钝化膜厚度测量方法，研究腐蚀介质浓度与温度对腐蚀疲劳性能的影响，分析其失效行为。结果表明：在2 wt.%～5 wt.%腐蚀介质浓度区间，材料的疲劳寿命下降了44.12 %～61.70 %。在低浓度区间，钝化膜电阻由6 977 Ω/cm2上升至12 130 Ω/cm2，腐蚀进程受阻，导致腐蚀疲劳寿命增加。浓度进一步升高至5 wt.%，钝化膜电阻下降至4 661 Ω/cm2，腐蚀性离子在浓度梯度作用下穿透钝化膜进一步腐蚀材料基体部分，裂纹成核速率加快，导致腐蚀疲劳寿命呈下降趋势。随着腐蚀介质温度升高，钝化膜电阻由1 557 Ω/cm2上升至4 024 Ω/cm2，基体腐蚀反应速率减慢，导致材料腐蚀疲劳寿命随腐蚀介质温度上升而升高。
Abstract:
Structural components are significantly impacted by alternating loads and corrosion factors during their service life, which greatly shortens their durability. The study focuses on the 6061-T6 aluminum alloy, with in-situ corrosion-fatigue tests conducted in a liquid-phase environment under a maximum load of 230 MPa and a stress ratio of 0.1. By combining electrochemical testing with methods for measuring the thickness of the passive film, the effects of corrosion medium concentration and temperature on corrosion fatigue performance are investigated, and failure behavior is analyzed. The data and analysis results from the in-situ corrosion fatigue tests indicate that within the corrosion medium concentration range of 2 wt.% to 5 wt.%, the fatigue life of the material is reduced by 44.12% to 61.70%. In the lower concentration range, the resistance of the passive film is increased from 6?977?Ω∕cm? to 12?130?Ω∕cm?, hindering the corrosion process and leading to an increase in corrosion fatigue life. However, as the concentration is further increased to 5 wt.%, the resistance of the passive film is decreased to 4?661?Ω∕cm?, allowing corrosive ions to penetrate the passive film due to the concentration gradient, which further corrodes the material’s substrate and accelerates the crack nucleation rate, resulting in a decline in corrosion fatigue life. As the temperature of the corrosion medium is increased, the resistance of the passive film is raised from 1?557?Ω∕cm2 to 4?024?Ω∕cm 2, slowing the substrate corrosion reaction rate, which causes the corrosion fatigue life of the material to be extended with the rise in corrosion medium temperature.

参考文献/References:

[1].侯悦, 田原, 赵志鹏. 海洋工程用铝合金的腐蚀与防护研究进展, 表面技术[J], 2022, 51(5): 1001-3660.
[2].HOFFMAN M E, HOFFMAN P C. Corrosion and fatigue research e structure issues and relevance to naval aviation [J]. International Journal of Fatigue, 2001, 23: 1-10.
[3].孙飞龙, 李晓刚 卢琳, 等. 5052和6061铝合金在中国南海深海环境下的腐蚀行为研究[J]. 金属学报, 2013, 49(10): 1219-1226.
[4].HYUN K, KIM S J. Optimum corrosion protection potential for water cavitation peening-processed Al-Mg alloy in seawater[J]. Surface Review and Letters, 2017, 24(6): 1850030.
[5].CAO M, LIU L, YU Z, et al. Electrochemical corrosion behavior of 2A02 Al alloy under an accelerated simulation marine atmospheric environment[J]. Journal of Materials Science & Technology, 2019, 35(4): 651-659.
[6].CHEN Y J, LIU C C, ZHOU J, et al. Effect of alternate corrosion factors on multiaxial low-cycle fatigue life of 2024-T4 aluminum alloy[J]. Journal of Alloys and Compounds, 2019, 772: 1-14.
[7].单际强, 侯丹丹, 张今捷, 等. 6082铝合金电化学腐蚀行为及晶间腐蚀机理研究[J]. 腐蚀科学与防护技术, 2018, 30(4): 353-361.
[8].杨少华, 刘增威, 林明, 等. 7075铝合金在不同pH值NaCl溶液中的腐蚀行为[J]. 有色金属科学与工程, 2017, 8(4): 7-11.
[9].邵燕静. 6061-T6铝合金焊接接头在3.5%NaCl溶液中的腐蚀行为[J]. 物理测试, 2024, 42(3): 12-18.
[10].NOELLE E C C, BURNS J T. Effects of macro-scale corrosion damage feature on fatigue crack initiation and fatigue behavior[J]. International Journal of Fatigue, 2017, 103: 234-247.
[11].王力, 张锦华, 闫春江. 湿热海洋环境下6005A铝合金车体的腐蚀行为研究[J]. 材料保护, 2025, 58(2): 108-116.
[12].ROMMEL S, LEONARD HR, LI, M X et al. The role of corrosion product layers in the pitting resistance of powder-processed Al-Cr-Co-Mn-Zr alloys containing icosahedral quasicrystalline dispersoids[J].Journal of Materials Science, 2022, 57: 20850-20866.
[13].MISHRA R K. Study the effect of pre-corrosion on mechanical properties and fatigue life of aluminum alloy 8011[J]. Materials Today: Proceedings, 2020, 25(4): 602-609.
[14].MA S H, HUI L, ZHOU S. Influence of corrosion environments on corrosion fatigue property of pre-corroded aluminum alloy[J]. Journal of Materials Engineering, 2016, 44(6): 98-103.
[15].MENAN F, HENAFF G. Synergistic action of fatigue and corrosion during crack growth in the 2024 aluminum alloy[J]. Procedia Engineering, 2010, 2(1): 1441-1450.
[16].LI R C, DUAN T G, MA L et al. Effects of anodization and micro-arc oxidation coatings on corrosion resistance and mechanical properties of 5A06 aluminum alloy[J]. Electroplating & Finishing, 2024, 43(8): 58-69.
[17].SCHEERDER C. The danger of single corrosion pits with respect to fatigue[D]. Delft: Faculty of Aerospace Engineering, Delft University of Technology, 1992.
[18].ENDO, K. MIYAO, Y. Effects of cycle frequency on the corrosion fatigue strength[J]. Bulletin of JSME, 1958(1): 374-380.
[19].王飞, 宋奕, 何佰毅. 盐雾环境下6061-T6铝合金腐蚀疲劳失效机理研究[J]. 电镀与精饰, 2025, 47(4): 33-41, 57.

相似文献/References:

[1]王飞,宋 奕,何佰毅.doi: 10.3969/j.issn.1001-3849.2025.04.006盐雾环境下6061-T6铝合金腐蚀疲劳失效机理研究[J].电镀与精饰,2025,(04):33.
　Wang Fei*,Song Yi,He Baiyi.Studies on corrosion fatigue failure mechanism of 6061-T6 aluminum alloy in salt spray environment[J].Plating & Finishing,2025,(03):33.

更新日期/Last Update: 2026-03-11