METHOD OF METAL MECHANICAL TESTING Russian patent published in 2015 - IPC G01N3/08 

FIELD: metallurgy.

SUBSTANCE: it is suggested to test using special prepared specimen in form of disk, that is several times rolled in rolls of the laboratory mill, then after each rolling length of axes of the produced ellipse is measured, logarithmic relative deformations longitudinal and transverse the rolling direction are calculated, deformation intensity, as well as hardness are measured, as result of the approximation of the graphical relationship between the deformation intensity εi and hardness HV the expression $$HV=N{\epsilon }_i^n$$ is solved, in it the numerical value of the argument exponent represents susceptibility of the tested metal to cold work.

EFFECT: determination of the metal susceptibility to cold work during process operation under pressure, characterised by unlimited large deformations.

2 dwg, 2 tbl