Yachen ZHANG, Jia MENG, Kun CAI, Xiaochen SHENG, Jun LE, Lixin SONG. Bending Failure Mechanism Study of Si-Cr-Ti High Temperature Oxidation Resistance Coating via Acoustic Emission Technique [J]. Journal of Inorganic Materials, 2021, 36(11): 1185
- Journal of Inorganic Materials
- Vol. 36, Issue 11, 1185 (2021)
1. Schematic diagram of the bending specimen
2. SEM image of cross-section of high temperature oxidation resistance coating
3. Four stages of stress-strain curves and acoustic emission events with time in three-point bending experiments
4. Calculated results of DBI with change of k
5. Clustering result of acoustic emission signal
6. SEM images of specimen
7. Frequency spectra of the AE signal from (a) surface vertical cracks, (b) substrate deformation, (c) opening interface cracks, and (d) sliding interface cracks
8. Wavelet energy spectra of the AE signal from (a) surface vertical cracks, (b) substrate deformation, (c) opening interface cracks, and (d) sliding interface cracks
9. Linear fit results for a set of data
10. Evaluation of b value of 4 types AE signals with time
11. Schematic diagram of failure mechanism
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