Observations conducted on scanning electron microscope in the area 1 revealed twin strains (marked in Fig. 6a)
and presence in grains of elongated twin limits (marked in Fig. 6b), which are characterized at magnesium alloys
deformation [7]. In the microstructure of forgings base in the area 3 a region was localized, which underwent a small
deformation. In this area grains of mean size 7.9÷11.2 μm are slightly deformed, which is confirmed by their small
elongation in comparison with initial state (Fig. 5c). Visible darker places (spots) on the placed microstructures
(Fig. 5) can mean appearance of micro hollows or impurity in initial material.
Research results on initial material mechanical properties and formed brackets forgings are presented in table 2.
In the static test of tension such parameters as: tensile strength Rm, yield strength Re, elongation A5 were determined.
Hardness in particular forgings areas marked during structure research (Fig. 4b) was determined.