Effect of shock-induced substructure evolution on the dynamic reloading mechanical behavior of Ti-17 alloy

The effect of shock-induced substructure evolution on the dynamic reloading mechanical behavior of a metastable β titanium alloy, Ti-5Al-2Sn-2Zr-4Mo-4Cr (Ti-17), was systematically investigated in this paper. The preshock treatment with the shock stress amplitude of 6, 10 and 14 GPa were applied on...

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Bibliographic Details
Published in:Journal of physics. Conference series 2022-06, Vol.2285 (1), p.12025
Main Authors: Li, Zheng, Tan, Chengwen, Ren, Yu
Format: Article
Language:English
Subjects:
Edge dislocations
Evolution
Martensite
Mechanical properties
Microstructure
Physics
Strain rate
Titanium base alloys
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Summary:The effect of shock-induced substructure evolution on the dynamic reloading mechanical behavior of a metastable β titanium alloy, Ti-5Al-2Sn-2Zr-4Mo-4Cr (Ti-17), was systematically investigated in this paper. The preshock treatment with the shock stress amplitude of 6, 10 and 14 GPa were applied on the Ti-17 alloy with equiaxed β microstructure. Then the dynamic reloading tests at strain rate of 3000 s -1 were carried out on these shock-prestrained samples. The results show that, the shock-induced substructure in Ti-17 with equiaxed β microstructure involves shock-induced α" martensite, shock-induced ω phase, dislocation proliferation and slip band. The shock-induced substructure evolution directly influences the mechanical properties of Ti-17 alloy during dynamic reloading.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2285/1/012025