M. Stańczyk, T. Figlus, The Silesian University of Technology, Faculty of Transport Katowice, Poland In the work the influence results of two different hardening coolant agents on the basic mechanical proprieties and microstructure of the round hot rolled bars were presented. The bars of 42CrMo4 steel were exposed to analysis, and for those bars in the hardening process, water and modern pro-ec...

In this work, the initial anisotropy and its evolution with strain, hardening and rupture of DC04 mild steel are characterized by using (i) a phenomenological constitutive model composed by the non-quadratic Yld2004-18p yield criterion combined with an isotropic hardening law and (ii) a macroscopic rupture criterion. For this purpose, an inverse methodology of material parameters identification...

Considering the extensive usage of electronic systems in Spacecraft and harsh radiation environment in the Space, radiation effects on electronic systems and development of radiation hardening electronic systems have been a topic of research. Researchers are trying to solve this problem at various abstraction levels, starting from fabrication technology to packaging and at system level. This pa...

The paper deals with devising the combination of fuzzy inference systems (FIS) and neural networks called the adaptive network fuzzy inference system (ANFIS) to determine the forming limit diagram (FLD). In this paper, FLDs are determined experimentally for two grades of low carbon steel sheets using out-of-plane (dome) formability test. The effect of different parameters such as work hardening...

In this paper, results of an investigation on the strain hardening responses of superalloy MP35N with two average grain sizes of 38 and 1 μm, during room temperature tensile testing are reported. The microstructural evolution of the deformed samples was studied using optical and transmission electron microscopy (TEM) techniques. The strain hardening behavior of the 38 μm material was rather sim...

Abstract The influence of anisotropic work-hardening on the component properties and process forces in cold forging is investigated. focus material behaviour exhibited after strain path reversals. three steels characterized for large monotonic strains (equivalent up to 1.7) subsequent reversals (accumulated 2.5). Tensile tests specimens extracted from rods forward extruded at room temperature r...