engleski

Tool material behavior at elevated temperatures

In this paper experimentally obtained data related to material mechanical properties, material behavior at elevated temperatures and numerical modeling of material creep responses are presented. Tensile tests at different elevated temperatures are carried out, and for some of these temperatures one-dimensional short time creep tests for different constant stresses are made. Before presented experimental investigations the used materials were not treated. The curves representing specimen strain elongation are also presented. The materials under consideration are 56NiCrMoV7 (1.2714) and X153CrMoV12 (1.2379)

tool steel; mechanical properties; short-time creep; 1.2714 steel; 1.2379 steel; rheological model; Burgers model; finite element modelling; stress-strain curves; elevated temperature; uniaxial test; testing machine; high-temperature extensometer; numerical modelling; constitutive law.

nije evidentirano