Abstract
This study uses a split-Hopkinson bar to investigate the mechanical response and microstructural evolution of Ti-13Zr-13Nb biomedical alloy under dynamic loading. Dynamic compression tests are performed at room temperature (25°C) and 500°C under strain rates of 900 s - 1, 1900 s - 1 and 2800 s - 1, respectively. It indicates that the mechanical response of Ti-13Zr-13Nb biomedical alloy is very influenced by strain rate and temperature. The plastic flow stress and strain rate sensitivity increase with the increasing strain rate but decrease with increasing temperature. It reveals that the Ti-13Zr-13Nb alloy fail due to the intensive localized shearing by fracture observation. Furthermore, TEM observations reveal that the dislocation density increases with an increasing strain rate, but decrease with increasing temperature.
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Schedule a callMore From: Technology and health care : official journal of the European Society for Engineering and Medicine
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