and transmission electron microscopy. Comparison of mechanical properties after shock-wave loading (SWL)
under a pressure of 5–15 GPa and after subsequent aging indicates that the yield strength and ultimate tensile
strength are weakly affected by aging. However, the succession of the aging and SWL operations is of impor-
tance, and the efficiency of the combined treatments increases if SWL is the finishing operation. It was shown
that the fractographic data obtained on specimens tested by tension to failure are consistent with both the elec-
tron-microscopic data and the values of relative reduction of area
. The character of changes and scatter observed in
values are caused by local nonuniformities in the occurrence of the 
deformation twins 
martensitic transformation.