A comparative study on modified and optimized Zerilli-Armstrong and arrhenius-type constitutive models to predict the hot deformation behavior in 30Si2MnCrMoVE steel

• DOI: 10.1016/j.jmrt.2022.08.134
• Publication Date: 2022-09-06T09:06:55Z
• Authors: Fan Li; Chengcheng Zhu; Shuangjiang Li; Hong Jiang; Peng Zhang; Ruigeng Yang; Shengdun Zhao
• Keywords: Phenomenological model; Flow stress; Atmospheric temperature range

To better understand the elevated temperature flow behaviors of 30Si2MnCrMoVE low-alloy ultra-high strength steel, hot compressive deformation tests were performed at a wide range forming temperatures (1123–1423 K) and strain rates (0.01–1s−1). The constitutive equations material established through physical-based modified Zerilli-Armstrong (ZA) phenomenological Arrhenius-type models, along with optimized ZA model compensation constructed based on model. Suitability these models evaluated by comparing correlation coefficient absolute average error between prediction experimental data, its ability to predict behavior, amount calculation required for constants. Results show that cannot accurately describe behavior steel in abovementioned working zone. Arrhenius-Type require similar computational effort, both can effectively high steel. Relatively, Arrhenius type has highest accuracy.