[Kovove materialy - Metallic materials]
    Fri - April 12, 2024 - 23:36 No. of hits : 1740515 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 61 (2023), Issue 4

Analysis of thermal deformation behavior and workability of 37CrS4 special steel
vol. 61 (2023), no. 4, pp. 233 - 242
DOI: 10.31577/km.2023.4.233

In order to optimize the thermal forging process of 37CrS4 special steel, single-pass thermal pressing tests are conducted, and a strain compensation based on Arrhenius constitutive equation is proposed based on the stress-strain curves of 37CrS4 at the temperature of 900–1100 °C and the strain rate of 0.1–10 s−1. The stress values calculated from the equation are in good agreement with the counterparts in the thermal simulation compression test. The high correlation between the calculated and experimental data verifies the correctness of the strain compensation Arrhenius constitutive equation. According to the dynamic material model and instability criterion, the processing maps of 37CrS4 are established. It is concluded that 37CrS4 is more suitable for thermal working at a strain rate of 0.1–0.37 s−1 and temperature of 1000–1100 °C.

Key words
37CrS4 special steel, stress-strain curves, Arrhenius constitutive equation, strain compensation, processing maps

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Full title of this journal is bilingual: Kovov materily - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.

Article abstracts updated: 2023-10-26 07:45
Articles in press revised: 2024-04-11 09:16
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