PSI - Issue 36

Ihor Koval et al. / Procedia Structural Integrity 36 (2022) 51–58 Ihor Koval et al. / Structural Integrity Procedia 00 (2021) 000 – 000

57 7

Fig. 5. SEM image alloy 4 (a) with spectrum points, line distribution, EDS result in binder (b).

Table 5. Chemical composition of structure elements in alloy 4.

Core

Rim

Binder

Homogeneous carbide grain

Element

wt%

at%

wt%

at%

wt%

at%

wt%

at%

C

16.70 45.13 17.66 51.07 10.39 35.08 78.84 53.44 55.48 40.24 28.58 24.19

14.39 55.83

44.46 43.24

Ti Cr Ni

0.35 0.70 1.34 2.07

0.22 0.39 0.47 0.37

1.53 3.11 8.83

1.02 1.84 3.30 2.53

10.41

8.12

4.63 5.65 7.59

3.30 3.57 3.03 2.40

45.30 31.28

Nb

0.73 4.58

0.32 1.01

W

13.39

11.90

Fig. 6. EDS elemental surface distribution of the alloy 2 and 4 with 13.5% (wt.) nano Ni (a) and fine Ni (b).

As it can be seen from Fig. 6, the components elemental distribution of alloys testifies the conclusions on the intensification of diffusion processes in the presence of nano nickel, which could result in its strengthening and directly affects the mechanical properties.