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- W4308797587 abstract "For investigating the mechanisms of microstructures and mechanical properties on energy-release capacity under high velocity impacting process of reactive structural materials (RSMs). Zr-Nb alloys with different Nb content were prepared via powder metallurgy. Both the α/β phase proportion and phase distribution vary with Nb content. The energy-release capacity under high-velocity impaction of Zr-Nb alloys shows an obvious difference. Micro-analyzing reveals that the smaller size of fragments after impaction is crucial for facilitating Zr reaction with oxygen, resulting in better energy-release capacity. However, the size of fragments after impaction is not only determined by the plasticity of alloys but also influenced by the microstructure. A continuous distribution of brittle α surrounding β is beneficial to controlling crack propagation path and forming fragments with small sizes. In the present work, the Zr-20Nb alloy exhibits excellent energy-release capacity. • Zr-Nb alloys with different plasticity&strength were prepared by powder metallurgy. • α phase surrounds β phase assist to form tiny fragments under impacting process. • Proper plasticity assists in the accumulation of adiabatic temperature rise. • Fragments with small size and high adiabatic temperature violently react with oxygen. • Zr-20Nb alloy exhibits excellently comprehensive energy-release capacity." @default.
- W4308797587 created "2022-11-15" @default.
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- W4308797587 date "2023-02-01" @default.
- W4308797587 modified "2023-09-29" @default.
- W4308797587 title "Mechanism and influence factors on energy-release capacity under the high-velocity impact fragmentation of Zr-Nb alloys" @default.
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- W4308797587 doi "https://doi.org/10.1016/j.jallcom.2022.168022" @default.
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