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Volume 11
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10.3390/met11081217
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Article

Effect of W on the Impact-Induced Energy Release Behavior of Al–Ni Energetic Structural Materials

by
Shun Li
1,
Caimin Huang
1,2,*,
Jin Chen
3,
Yu Tang
1,* and
Shuxin Bai
1
1
Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
2
School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China
3
Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
*
Authors to whom correspondence should be addressed.
Metals 2021, 11(8), 1217; https://doi.org/10.3390/met11081217
Submission received: 24 June 2021 / Revised: 22 July 2021 / Accepted: 26 July 2021 / Published: 30 July 2021
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Abstract

Energetic structural materials (ESMs) are an important class of military materials due to their good structural and energy-releasing characteristics. To improve the damage effect of metal–metal ESMs with good mechanical properties, W was added to the 48Al–52Ni composites, and the effect of W on the impact-induced energy release behaviors was investigated. The results showed that the hot-press process and the addition of W did not change the microstructure and surface state of the constituent particles, leading to a stable onset temperature of the Al–Ni intermetallic reaction in (48Al–52Ni)100-xWx composites. Meanwhile, the decrease in the contact area between Al and Ni in the composites with increased W content resulted in the decrease in reaction heat. During the impact process, the intermetallic reaction of W caused by the Al–Ni intermetallic reaction, as well as the oxidation reaction of Al and Ni caused by the brittle fracture along the weak interface, caused the released energy of (48Al–52Ni)40W60 to reach 2.04 kJ/g.
Keywords: energetic structural materials; Al–Ni composite; W; impact-induced reaction; energy release characteristic energetic structural materials; Al–Ni composite; W; impact-induced reaction; energy release characteristic

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MDPI and ACS Style

Li, S.; Huang, C.; Chen, J.; Tang, Y.; Bai, S. Effect of W on the Impact-Induced Energy Release Behavior of Al–Ni Energetic Structural Materials. Metals 2021, 11, 1217. https://doi.org/10.3390/met11081217

AMA Style

Li S, Huang C, Chen J, Tang Y, Bai S. Effect of W on the Impact-Induced Energy Release Behavior of Al–Ni Energetic Structural Materials. Metals. 2021; 11(8):1217. https://doi.org/10.3390/met11081217

Chicago/Turabian Style

Li, Shun, Caimin Huang, Jin Chen, Yu Tang, and Shuxin Bai. 2021. "Effect of W on the Impact-Induced Energy Release Behavior of Al–Ni Energetic Structural Materials" Metals 11, no. 8: 1217. https://doi.org/10.3390/met11081217

APA Style

Li, S., Huang, C., Chen, J., Tang, Y., & Bai, S. (2021). Effect of W on the Impact-Induced Energy Release Behavior of Al–Ni Energetic Structural Materials. Metals, 11(8), 1217. https://doi.org/10.3390/met11081217

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