基于分形维数的预腐蚀铝合金疲劳寿命预测
Fatigue Life Prediction of Pre-corroded Aluminum Alloy Based on Fractal Dimension Method
摘 要
通过数字图像处理技术对在质量分数为3.5%的NaCl溶液中预腐蚀处理不同时间的2xxx系铝合金试样表面腐蚀形貌进行分析,利用差分盒维数描述腐蚀三维形貌,分析了分形维数与腐蚀时间、疲劳寿命的关系,基于分形维数建立了疲劳寿命预测模型,并通过试验进行验证。结果表明:2xxx系铝合金的分形维数与腐蚀时间呈幂函数关系,与疲劳寿命呈线性关系;建立的寿命预测模型对低周疲劳寿命的预测结果较为保守,与试验值的相对误差在25%以内,对高周疲劳寿命的预测结果较为精准,与试验值的相对误差减小到15%以内;通过寿命预测模型计算得到的疲劳极限与试验值接近,相对误差在5%以内。
预腐蚀
分形维数
疲劳寿命预测
aluminum alloy
pre-corrosion
fractal dimension
fatigue life prediction
Abstract
The surface corrosion morphology of 2xxx aluminum alloy specimens pre-corroded with 3.5% mass fraction NaCl solution for different times was analyzed by digital image processing technique. The three-dimensional corroded morphology was described by Differential Box-Counting method. The relationships between fractal dimension, corrosion time and fatigue life were analyzed, and the fatigue life prediction model based on fractal dimension was established and verified by experiments. The results show that the relationship between the fractal dimension and corrosion time was a power function, while the fractal dimension was linear with the fatigue life. The prediction results of the established life prediction model for low cycle fatigue lives were relatively conservative, and the relative error with the test result was within 25%. The prediction results for high cycle fatigue lives were relatively accurate, and the relative error of the test result was reduced to less than 15%. The fatigue limit calculated by life prediction model was close to the test value, and the relative error of less than 5%.
中图分类号 V252 TG171 DOI 10.11973/jxgccl202212013
所属栏目 物理模拟与数值模拟
基金项目 江苏省高等学校自然科学研究面上项目(21KJB460020);国家自然科学基金青年基金资助项目(52105157);江苏高校“青蓝工程”优秀青年骨干教师资助项目(苏教师函[2021]11号)
收稿日期 2022/8/31
修改稿日期 2022/11/8
网络出版日期
作者单位点击查看
联系人作者郭一冰高级工程师
备注王勇刚(1990-),男,江苏苏州人,讲师,硕士
引用该论文: WANG Yonggang,GUO Yibing,DONG Yijun,ZHOU Song,ZHI Shanjie,ZHANG Jingkuo,LU Yaping,LI Dongya,WANG Shuang. Fatigue Life Prediction of Pre-corroded Aluminum Alloy Based on Fractal Dimension Method[J]. Materials for mechancial engineering, 2022, 46(12): 79～84
王勇刚,郭一冰,董逸君,周松,职山杰,张景扩,卢亚平,李东亚,王爽. 基于分形维数的预腐蚀铝合金疲劳寿命预测[J]. 机械工程材料, 2022, 46(12): 79～84
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参考文献
【1】ZHAO Q, GUO C, NIU K, et al. Long-term corrosion behavior of the 7A85 aluminum alloy in an industrial-marine atmospheric environment[J]. Journal of Materials Research and Technology, 2021, 12: 1350-1359.
【2】GOTO M, NISITANI H. Crack initiation and propagation behavior of a heat treated carbon steel in corrosion fatigue[J].Fatigue & Fracture of Engineering Materials & Structures, 1992, 15(4): 353-363.
【3】KEY J W, KACHER J. Establishing first order correlations between pitting corrosion initiation and local microstructure in AA5083 using automated image analysis[J]. Materials Characterization, 2021, 178(1): 111237.
【4】CRAWFORD B R, LOADER C, LIU Q C, et al. Can pitting corrosion change the location of fatigue failures in aircraft?[J]. International Journal of Fatigue, 2014, 61: 304-314.
【5】MOLENT L. Managing airframe fatigue from corrosion pits:A proposal[J]. Engineering Fracture Mechanics, 2015, 137: 12-25.
【6】房豪杰,曲华,杨黎晖,等.9C系列粉末冶金高耐蚀铝合金腐蚀行为研究[J].中国腐蚀与防护学报,2021,41(6):775-785. FANG H J,QU H,YANG L H,et al.Corrosion behavior of 9C series of powder metallurgy Al-alloy with high corrosion resistance[J].Journal of Chinese Society for Corrosion and Protection,2021,41(6):775-785.
【7】申媛媛,董耀华,杨懿,等.切削液中的微生物对2219铝合金腐蚀行为影响[J].润滑与密封,2022,47(4):11-21. SHEN Y Y,DONG Y H,YANG Y,et al.Effect of bacteria in the metalworking emulsions on corrosion behavior of 2219 aluminum alloys[J].Lubrication Engineering,2022,47(4):11-21.
【8】李斌,董丽虹,王海斗,等.航空航天铝合金腐蚀疲劳研究进展[J].表面技术,2021,50(7):106-118. LI B,DONG L H,WANG H D,et al.Research progress on corrosion fatigue of aerospace aluminum alloy[J].Surface Technology,2021,50(7):106-118.
【9】李庆宏,陈景浩,申媛媛,等.切削液中类产碱假单胞菌对铝合金腐蚀行为的影响[J].表面技术,2021,50(5):269-280. LI Q H,CHEN J H,SHEN Y Y,et al.Microbially influenced corrosion behavior of aluminium alloy in metalcutting fluid containing pseudomonas pseudoalcaligenes[J].Surface Technology,2021,50(5):269-280.
【10】SANKARAN K K,PEREZ R,JATA K V.Effects of pitting corrosion on the fatigue behavior of aluminum alloy 7075-T6:Modeling and experimental studies[J].Materials Science and Engineering:A,2001,297(1/2):223-229.
【11】WALDE K,HILLBERRY B M.Characterization of pitting damage and prediction of remaining fatigue life[J].International Journal of Fatigue,2008,30(1):106-118.
【12】韦丽金.点蚀疲劳寿命估算的投影面积法[D].南京:南京航空航天大学,2008:23-47. WEI L J.Projected area approach for pitting corrosion fatigue life prediction[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2008:23-47.
【13】张玮.金属腐蚀形貌特征提取用于腐蚀诊断的研究[D].大连:大连理工大学,2004:5-18. ZHANG W.Characteristics extraction of metallic corrosion morphology for corrosion diagnosis[D].Dalian:Dalian University of Technology,2004:5-18.
【14】许成龙,吕胜利,王振果,等.铝合金表面腐蚀形态演化规律的分形几何表征[J].机械科学与技术,2011,30(2):233-236. XU C L,LU S L,WANG Z G,et al.Characteristics of the fractal geometry in the evolution rhythm of surface corrosion morphology of aluminum alloy[J].Mechanical Science and Technology for Aerospace Engineering,2011,30(2):233-236.
【15】张川,姚卫星.铝合金预腐蚀剩余寿命的分形维数预测方法[J].中国机械工程,2013,24(17):2337-2340. ZHANG C,YAO W X.Prediction of residual life of pre-corrosion aluminum alloy with fractal dimension[J].China Mechanical Engineering,2013,24(17):2337-2340.
【16】ZHANG C,CHEN Y H,YAO W X.The use of fractal dimensions in the prediction of residual fatigue life of pre-corroded aluminum alloy specimens[J].International Journal of Fatigue,2014,59:282-291.
【2】GOTO M, NISITANI H. Crack initiation and propagation behavior of a heat treated carbon steel in corrosion fatigue[J].Fatigue & Fracture of Engineering Materials & Structures, 1992, 15(4): 353-363.
【3】KEY J W, KACHER J. Establishing first order correlations between pitting corrosion initiation and local microstructure in AA5083 using automated image analysis[J]. Materials Characterization, 2021, 178(1): 111237.
【4】CRAWFORD B R, LOADER C, LIU Q C, et al. Can pitting corrosion change the location of fatigue failures in aircraft?[J]. International Journal of Fatigue, 2014, 61: 304-314.
【5】MOLENT L. Managing airframe fatigue from corrosion pits:A proposal[J]. Engineering Fracture Mechanics, 2015, 137: 12-25.
【6】房豪杰,曲华,杨黎晖,等.9C系列粉末冶金高耐蚀铝合金腐蚀行为研究[J].中国腐蚀与防护学报,2021,41(6):775-785. FANG H J,QU H,YANG L H,et al.Corrosion behavior of 9C series of powder metallurgy Al-alloy with high corrosion resistance[J].Journal of Chinese Society for Corrosion and Protection,2021,41(6):775-785.
【7】申媛媛,董耀华,杨懿,等.切削液中的微生物对2219铝合金腐蚀行为影响[J].润滑与密封,2022,47(4):11-21. SHEN Y Y,DONG Y H,YANG Y,et al.Effect of bacteria in the metalworking emulsions on corrosion behavior of 2219 aluminum alloys[J].Lubrication Engineering,2022,47(4):11-21.
【8】李斌,董丽虹,王海斗,等.航空航天铝合金腐蚀疲劳研究进展[J].表面技术,2021,50(7):106-118. LI B,DONG L H,WANG H D,et al.Research progress on corrosion fatigue of aerospace aluminum alloy[J].Surface Technology,2021,50(7):106-118.
【9】李庆宏,陈景浩,申媛媛,等.切削液中类产碱假单胞菌对铝合金腐蚀行为的影响[J].表面技术,2021,50(5):269-280. LI Q H,CHEN J H,SHEN Y Y,et al.Microbially influenced corrosion behavior of aluminium alloy in metalcutting fluid containing pseudomonas pseudoalcaligenes[J].Surface Technology,2021,50(5):269-280.
【10】SANKARAN K K,PEREZ R,JATA K V.Effects of pitting corrosion on the fatigue behavior of aluminum alloy 7075-T6:Modeling and experimental studies[J].Materials Science and Engineering:A,2001,297(1/2):223-229.
【11】WALDE K,HILLBERRY B M.Characterization of pitting damage and prediction of remaining fatigue life[J].International Journal of Fatigue,2008,30(1):106-118.
【12】韦丽金.点蚀疲劳寿命估算的投影面积法[D].南京:南京航空航天大学,2008:23-47. WEI L J.Projected area approach for pitting corrosion fatigue life prediction[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2008:23-47.
【13】张玮.金属腐蚀形貌特征提取用于腐蚀诊断的研究[D].大连:大连理工大学,2004:5-18. ZHANG W.Characteristics extraction of metallic corrosion morphology for corrosion diagnosis[D].Dalian:Dalian University of Technology,2004:5-18.
【14】许成龙,吕胜利,王振果,等.铝合金表面腐蚀形态演化规律的分形几何表征[J].机械科学与技术,2011,30(2):233-236. XU C L,LU S L,WANG Z G,et al.Characteristics of the fractal geometry in the evolution rhythm of surface corrosion morphology of aluminum alloy[J].Mechanical Science and Technology for Aerospace Engineering,2011,30(2):233-236.
【15】张川,姚卫星.铝合金预腐蚀剩余寿命的分形维数预测方法[J].中国机械工程,2013,24(17):2337-2340. ZHANG C,YAO W X.Prediction of residual life of pre-corrosion aluminum alloy with fractal dimension[J].China Mechanical Engineering,2013,24(17):2337-2340.
【16】ZHANG C,CHEN Y H,YAO W X.The use of fractal dimensions in the prediction of residual fatigue life of pre-corroded aluminum alloy specimens[J].International Journal of Fatigue,2014,59:282-291.
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