with the highest crystal volume fraction ( f 34%) is about
44% higher than that of the amorphous. The crystal par-
ticle undergoes plastic deformations, hence it is thought
that the increase of df/d f can no longer be expected for
higher volume fractions.
3. 2 Evolution of stress distribution
The equivalent stress distributions in the cross sec-
tion z = Lz/2 are displayed in Fig. 4. The white and
black areas respectively mean that the equivalent stress
is 0 and higher than 6.8 GPa. The result for the sam- ple with low crystal volume fraction, F(L43R12f10), is shown in Fig. 4 (i), and that for the high crystal volume fraction, G(L43R19f34), is shown in Fig. 4 (ii). The stress distribution in the crystal particle is almost homogeneous
even when yy = 0.34. Moreover, local stress concen-
trations cannot be confirmed near the amorphous-crystal
interface. This is because the amorphous phase undergoes easily local structure relaxations compared with the crystal phase. Therefore, the possibility of inducing deformation is small, and the inside-particle plastic deformation is rare.