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Martensitic transformation under impact with high strain rate

✍ Scribed by Shun-cheng Song; Ding Gui-bao; Duan Zu-ping

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
211 KB
Volume
25
Category
Article
ISSN
0734-743X

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✦ Synopsis

This paper deals with the quantitative prediction of the volume fraction of martensitic transformation in a austenitic steel that undergoes impact with high strain rate. The coupling relations between strain, stress, strain rate, transformation rate and transformed fraction were derived from the OTC model and modified Bodner-Partom equations, where the impact process was considered as an adiabatic and no entropyincreased process (pressurep20 GPa). The one-dimensional results were found to model and predict various experimental results obtained on 304 stainless steel under impact with high strain rate.

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## Abstract The mechanical behavior of semicrystalline Nylon 11 was studied at strain rates between 10^βˆ’3^ and 8800 s^βˆ’1^. X‐ray diffraction and DSC were employed to examine the crystal structure and the crystallinity content. The as‐received material comprised a mixed structure of a predominately