The mechanical control of the materials is performed under strictly defined conditions, through the use of laboratory benches and test bodies, made of the test material. It proves the guaranteed mechanical properties of the material.
TENSILE STRENGTH
The tensile test consists in loading the test body with a tensile force until it breaks, in order to determine one or more mechanical properties (tensile or ductile).
RELATIVE ELONGATION AND SHRINKAGE
The result of the tensile test is determined the relative elongation after demolition A (residual relative elongation, expressed as a percentage) and the relative shrinkage after failure Z (the maximum change in cross-sectional area, expressed as a percentage).
THE BORDER OF PROVLACHANE
The yield strength is determined depending on the type of chart. For a yield pad diagram, an upper /ReH/ and lower /ReL/ yield limit is defined, and for a diagram without a platform – conditional yield strength /Re/.
THE BEND TEST
The bending test consists in subjecting the test body to a load, causing bending. Bending continues until a certain bending angle is reached or until failure (appearance of a crack).
IMPACT BENDING
Impact bending by the Charpy method
The method consists in the destruction of a sample (with a pre-prepared incision) by a single stroke of a falling pendulum.
The absorbed energy in joules is determined. This energy is a measure of the material's impact strength.
MACRO AND MICROSTRUCTURE ANALYSIS
The method consists in visualizing and evaluating macro and microstructures of metals .
Gives information about the size of the grains in the structure, the quantitative ratio, micro defects etc.
