Abstract
A high elastic admissible strain (EAS), which is essential for bio-implant applications, is difficult to be achieved due to the synergy between the elastic modulus and the yield strength. Here, the EAS values of 1.94–2.50%, which are much higher than those (EAS <1.3%) of reported biomedical materials, have been achieved in a TiZr alloy by using cold rolling deformation. The highest EAS of 2.50% in the sample with a rolling strain of 0.37 can be attributed to its low elastic modulus due to the existence of nanoscale low-elastic modulus α″ phase with a volume fraction of ∼14% and its high strength resulted from the strengthening of high-density α″ phase boundaries.
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