4
1.4 Conclusion
304L-VAR stainless steel was characterized in tension with a full coverage from low, intermediate to high strain rates, particularly with a significant focus on intermediate strain rates between 10
0
and 10
2
s
−1
. The 304L-VAR stainless steel possessed a significant work-hardening response with a significant strain rate effect. The strain rate sensitivity of the flow stress
was observed to depend on strain. The material showed a high ductility with approximately 50% strain prior to the onset of
necking. The true failure strain was calculated based on the final necked diameter of the sample. The true failure strains were
Fig. 1.3 Strain rate effect on
flow stress
Fig. 1.4 Strain rate effect on
true failure strain
B. Song et al.
1.4 Conclusion
304L-VAR stainless steel was characterized in tension with a full coverage from low, intermediate to high strain rates, particularly with a significant focus on intermediate strain rates between 10
0
and 10
2
s
−1
. The 304L-VAR stainless steel possessed a significant work-hardening response with a significant strain rate effect. The strain rate sensitivity of the flow stress
was observed to depend on strain. The material showed a high ductility with approximately 50% strain prior to the onset of
necking. The true failure strain was calculated based on the final necked diameter of the sample. The true failure strains were
Fig. 1.3 Strain rate effect on
flow stress
Fig. 1.4 Strain rate effect on
true failure strain
B. Song et al.