MICRORADIOGRAPHIC CHARACTERIZATION OF PITTING CORROSION DAMAGE AND FATIGUE LIFE

机译：点蚀腐蚀损伤和疲劳寿命的射线照相特征

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The applicability of microradiography for the detection of pit and fatigue cracks in 2024-T3 aluminum alloys is demonstrated. A fracture mechanics model for fatigue cracks initiating and propagating from a single corrosion pit has been developed. The model is validated by fatigue experiments on samples with a single artificial corrosion pit of different depths. Good agreement between theory and experiment is observed in Al 2024-T3 alloy. The applicability of the proposed empirical relation is demonstrated by comparing with experiments and computations for several different types of material and various fatigue conditions

机译：证明了显微照相技术在2024-T3铝合金中检测凹坑和疲劳裂纹的适用性。已经建立了从单个腐蚀坑开始和蔓延的疲劳裂纹的断裂力学模型。通过对具有不同深度的单个人工腐蚀坑的样品进行疲劳实验，验证了该模型。在Al 2024-T3合金中观察到理论与实验之间的良好一致性。通过与几种不同类型的材料和各种疲劳条件下的实验和计算进行比较，证明了所提出的经验关系的适用性

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来源
《Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US)》|1998年|P.1795-1804|共10页
会议地点 SnowbirdUT(US)
作者
S. I. Rokhlin; B. Zoofan; J.-Y. Kim;
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The Ohio State University Nondestructive Evaluation Program Edison Joining Technology Center 1248 Arthur E. Adams Dr. Columbus, OH 43221;

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原文格式 PDF
正文语种 eng
中图分类无损探伤仪器;
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1. Fatigue life prediction of welded joints with artificial corrosion pits based on continuum damage mechanics [J] . Jie Zhiyu, Li Yadong, Wei Xing, Journal of Constructional Steel Research . 2018,第SEPa期

机译：基于连续损伤力学的人工腐蚀坑焊接接头疲劳寿命预测
2. Damage tolerance approach for probabilistic pitting corrosion fatigue life prediction [J] . Pan Shi, Sankaran Mahadevan Engineering Fracture Mechanics . 2001,第13期

机译：概率腐蚀点疲劳寿命预测的损伤容限方法
3. Characterization of pitting damage and prediction of remaining fatigue life [J] . K. van der Walde, B.M. Hillberry International Journal of Fatigue . 2008,第1期

机译：点蚀损伤的表征和剩余疲劳寿命的预测
4. MICRORADIOGRAPHIC CHARACTERIZATION OF PITTING CORROSION DAMAGE AND FATIGUE LIFE [C] . S. I. Rokhlin, B. Zoofan, J.-Y. Kim Annual Symposium on Quantitative Nondestructive Evaluation . 1999

机译：蚀腐蚀损伤和疲劳寿命的微观造影表征
5. Pitting effects on the corrosion fatigue life of 7075-T6 aluminum alloy. [D] . Ma, Li. 1994

机译：点蚀对7075-T6铝合金的腐蚀疲劳寿命有影响。
6. Effect of Pre-Corrosion Pits on Residual Fatigue Life for 42CrMo Steel [O] . Dezheng Liu, Yan Li, Xiangdong Xie, 2019

机译：预腐蚀坑对42CrMo钢残余疲劳寿命的影响
7. Microradiographic Characterization of Pitting Corrosion Damage and Fatigue Life [O] . Rokhlin, Stanislav I., Zoofan, B., Kim, J.-Y. 1999

机译：点蚀腐蚀损伤和疲劳寿命的显微放射学表征
8. Incorporation of Pitting Corrosion Damage into F-111 Fatigue Life Modelling [R] . Mills, T. , Sharp, P. K. , Loader, C. 2002

机译：在F-111疲劳寿命模型中加入点蚀腐蚀损伤

MICRORADIOGRAPHIC CHARACTERIZATION OF PITTING CORROSION DAMAGE AND FATIGUE LIFE

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