Modified ZERILLI-ARMSTRONG model for 21-4N heat-resistant steel

X. M. Huang; H. Y. Long; Y. M. Li; H. L. Duan

Metalurgija (Jan 2020)

Modified ZERILLI-ARMSTRONG model for 21-4N heat-resistant steel

X. M. Huang,
H. Y. Long,
Y. M. Li,
H. L. Duan

Affiliations

X. M. Huang: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. Y. Long: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
Y. M. Li: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. L. Duan: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China

Journal volume & issue: Vol. 59, no. 3
pp. 305 – 308

Abstract

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The Gleeble - 1500D thermal simulator was used to conduct the isothermal compression test of 21 - 4N heat-resistant steel under the T range of 1 273 - 1 453 K and ε̇ of 0,01 – 10 s-1. Using the obtained stress - strain data, various parameters of the modified Zerilli-Armstrong (m – Z - A) model were calculated. The constitutive equations of 21 - 4N heat-resistant steel based on the m – Z - A were established. The m – Z - A model can well describe the rheological behavior of 21 - 4N heat-resistant steel. The simulation process can be completed successfully, indicating that the established models can be used for the simulation study of thermal deformation of 21 - 4N heat-resistant steel and are correct. The results can provide some important basic data for the simulation of 21 - 4N heat resistant steel on plastic deformation process.

Published in Metalurgija

ISSN: 0543-5846 (Print); 1334-2576 (Online)
Publisher: Croatian Metallurgical Society
Country of publisher: Croatia
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://pubweb.carnet.hr/metalurg/journal-metalurgija-2/about-journal

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