Answers are grounded in this paper and cite their sources.
Tensile tests with loading and unloading under various strain rates ε^^· were performed for TiNi shape memory alloy wires at various constant temperatures. The influence of strain rate on the stress-strain-temperature relationship was investigated. The main results are summarized as follows. ( 1 ) For ε^^· < 10%/min, the martensitic transformation stress and its reverse transformation stress did not depend on ε^^·. These stresses were almost constant in the transformation regions. ( 2 ) For ε^^· ≥ 10 %/min, the martensitic transformation stress increased and its reverse transformation stress decreased with an increase in ε^^·. These stresses fluctuated in the transformation regions. ( 3 ) The influence of ε^^· on the transformation stress due to R-phase transfor-mation was slight. ( 4 ) The recoverable strain energy density depended slightly on ε^^· but increased significantly in proportion to temperature. The dissipated strain energy density depended slightly on temperature but increased in proportion to ε^^· for ε^^· ≥ l %/min. ( 5 ) The influence of t on deformation properties is important in the evaluation of mechanical properties of shape memory alloy elements.
No takes yet. Share an insight, caveat, or question.
Lin et al. (1996) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: