Prakt. Met. Sonderband 38 (2006) 295 
power Fig. 7 Microstructure of the X40CrMoV5-1 tool steel (SEM) after alloying with the 
following parameters: a) beam power 1.2 kW, b) 2.3 kW, layer thickness 0.05 mm 
Fig. 8 EDX point wise analysis of tungsten carbide conglomerates 
power 
The X-Ray analysis shown in figure 9 confirms the presence of WC particles in the matrix 
in form of big conglomerates. The X-Ray diffraction was performed on the remelted 
samples, perpendicularly to the remelted surface. 
250 x 450 
400 SiC 2 
200 350 fie 3 
2 2 5 8 „ 
5 150 | i g 2 a g = BE 
E § 200 S 5 ¢ # 9 Ss 
% 100 fe, = = 
he 100 ; fim! J hf 
han % i 
— _ oo ol a ele EL 
38 45 55 65 75 85 95 108 38 45 55 65 75 85 95 18: 
Reflection angle, 20 Reflection angle,2@ 
the Fig. 9 X-Ray patterns of the hot work tool steel a) 32CrMoV 12-28, b) X40CrMoV5-1 
nm 
4 bh