Variation of Magnetic Memory Signals in Fatigue Crack Initiation and Propagation Behavior
Abstract
:1. Introduction
2. Theoretical Modeling
3. Experiment
3.1. Specimen Preparation
3.2. Instrument and Testing Method
4. Results and Discussion
4.1. Four-Point Fatigue Bending Test
4.2. Relationship between Magnetic Memory Signals and Fatigue Loading Cycles
4.3. Relationship between Characteristic Parameters and Fatigue Loading Cycles, Fatigue Crack Length
4.4. Discussion
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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C | Mn | Si | P | S | Mo | Ni | Cr | Cu | Nb | Ti | Al |
---|---|---|---|---|---|---|---|---|---|---|---|
0.07 | 1.39 | 0.21 | 0.011 | 0.002 | 0.003 | 0.255 | 0.223 | 0.129 | 0.082 | 0.015 | 0.035 |
Steel | σ0.2 (MPa) | σb (MPa) | ψ | σ0.2/σb |
---|---|---|---|---|
API 5L X80 | 650.9 | 694.8 | 71% | 0.94 |
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Zhou, W.; Fan, J.; Ni, J.; Liu, S. Variation of Magnetic Memory Signals in Fatigue Crack Initiation and Propagation Behavior. Metals 2019, 9, 89. https://doi.org/10.3390/met9010089
Zhou W, Fan J, Ni J, Liu S. Variation of Magnetic Memory Signals in Fatigue Crack Initiation and Propagation Behavior. Metals. 2019; 9(1):89. https://doi.org/10.3390/met9010089
Chicago/Turabian StyleZhou, Wei, Jianchun Fan, Jinlu Ni, and Shujie Liu. 2019. "Variation of Magnetic Memory Signals in Fatigue Crack Initiation and Propagation Behavior" Metals 9, no. 1: 89. https://doi.org/10.3390/met9010089