A modified continuum composite model was utilized to analyze the stress–strain behavior of as-quenched steels with a fully martensitic microstructure. The employed express curves obtained by simple tensile test and those forward backward loading using shear machine. study confirmed that can represent under both deformation. In addition, evolution local strain distributions during plastic deform...

Steels with regulated austenitic transformation during exploitation (RATE) are a new class of ferritic-based tungsten-free tool steels for hot forming. The study obtained quantitative data on the high-temperature strength RATE steel composition after quenching and tempering. stress-strain curves plotted tendency to strain hardening at temperatures 450 750 °C is estimated. It was established tha...

Abstract The article presents the test results of surface quality parameters after broaching heat-resistant steels grades: 1.7335 (13CrMo4-5) and 1.4841 (X15CrNiSi25-20). aim work is to determine technological methods obtaining lowest treated roughness, layer hardening elimination defects broaching. To investigate influence cutting conditions (cutting speed, tool geometry feed) on roughness har...

This paper deals with the comparison of two tool steels M390 and M398 produced by powder metallurgy MICROCLEAN type. The primary use steel is in plastics industry to produce screws for injection moulding machines. main purpose analyze hardness after different stages heat treatment. first part article evaluates hardening, which was performed using a hardening dilatometer DIL805A. A total 8 contr...

In present global scenario, aluminum alloys are coining the attention of many innovators as competing structural materials for automotive and space applications. Comparing to other challenging alloys, especially, 7xxx series aluminum alloys have been studied seriously because of benefits such as moderate strength; better deforming characteristics and affordable cost. It is expected that substit...