Characterization of Crater Area in a Target Penetrated by a Wf/Zr-Based Amorphous Matrix Composite Projectile
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Results
3.2. Discussion
4. Conclusions
- It was found that three layers were formed in the lateral direction of the crater, namely, the martensite layer, the deformation strengthening layer, and the original structure layer. Moreover, the martensite layer thickened first and then thinned in the longitudinal direction of the crater.
- ASB occurred in the martensite layer in Area 02, thus leading to an oscillation distribution of the hardness of the target around the crater. The theoretical temperature in ASB can reach up to 1520 °C when the strain rate is 105 and the strain is 10, and the high temperature transfers to the target steel around the ASB, which turns into the martensite layer.
- It was proved that the heat and high temperature were generated by the formation of ASB and the martensite layer, and the performance of target steel decreased since it is softened in such a high-temperature range. This phenomenon benefits the armor-piercing performance of Wf/Zr-based amorphous matrix composite projectiles. The armor-piercing performance was shown to be strong in the experiment, indicating that Wf/Zr-based amorphous matrix composite can be used as a new kind of projectile material.
Author Contributions
Funding
Conflicts of Interest
References
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Condition | Chemical Composition | Original Structure of Material | Characteristic Temperature |
---|---|---|---|
Projectile | 80% W 20% Zr41.25Ti13.75Cu12.5Ni10Be22.5 (Volume fraction) | Crystal structure of tungsten fiber + amorphous matrix | Melt temperature of W: 3683 K Melt temperature of Zr41.25Ti13.75Cu12.5Ni10Be22.5: 993 K |
Target | 0.37–0.44% C, 0.17–0.37% Si, 0.5–0.8% Mn, 0.6–0.9% Cr, 0.15–0.25% Mo, 0.5–0.8% W, ≤0.3% S, 0.25–1.65% Ni (Weight fraction) | Sorbite | Melt temperature: 1793 K |
A (MPa) | B (MPa) | n | C | m |
---|---|---|---|---|
792 | 510 | 0.26 | 0.0147 | 1.03 |
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Ye, X.; Zou, M.; Chen, J. Characterization of Crater Area in a Target Penetrated by a Wf/Zr-Based Amorphous Matrix Composite Projectile. Materials 2020, 13, 5523. https://doi.org/10.3390/ma13235523
Ye X, Zou M, Chen J. Characterization of Crater Area in a Target Penetrated by a Wf/Zr-Based Amorphous Matrix Composite Projectile. Materials. 2020; 13(23):5523. https://doi.org/10.3390/ma13235523
Chicago/Turabian StyleYe, Xianghai, Minming Zou, and Jiankang Chen. 2020. "Characterization of Crater Area in a Target Penetrated by a Wf/Zr-Based Amorphous Matrix Composite Projectile" Materials 13, no. 23: 5523. https://doi.org/10.3390/ma13235523