Influence of the Strain Rate and Heat Treatment on the Mechanical Properties of Steel Sheets

Abstract:

The paper analyses the influence of the strain rate on the behaviour of unalloyed steels with R_e 210 – 550 MPa in the deformation process. It presents and analyses the results of the influence of the strain rate ranging from 10^-3 to 2.5.10² s^-1 on the yield point, the tensile strength, the elongation and the reduction of area. It analyses the non-homogeneity of development of plastic deformation from both the macroscopic and microscopic points of view, as well as the influence of the strain rate on the development of plastic deformation. Since the intensity of the influence of the strain rate on the properties of materials depends on their internal structure, the tested steels are divided into three groups based on their yield point and yield point to tensile strength ratio.

• Periodical: Key Engineering Materials (Volume 635)
• Pages: 100-105
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.635.100
• Online since: December 2014
• Authors: Ján Micheľ, Marián Buršák, Petra Lacková
• Keywords: Heat Treatment, Mechanical Property, Strain Rate

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