Chen, Xuewen

Ma, Xiang

Zhou, Huijun

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8th International Conference on Physical and Numerical Simulation of Materials Processing (ICPNS)14–17 October 2016Seattle, Washington | Hosted by Purdue UniversitySESSION 3: DEFORMING AND RECRYSTALLIZATION, SALON CCo-Chairs: Lin Hua, Wuhan University of Technology; Kexing Song, Henan University of Science and Technology; Mei Zhang, Shanghai University; Baohui Tian, Bohler Special SteelSATURDAY, OCTOBER 15, 2016Hot deformation behavior and Hansel–Spittel constitutive  model of Cr5 alloy for heavy backup rollXuewen Chen, Henan University of Science and Technology; Xiang Ma, SINTEF Materials and Chemistry;  Huijun Zhou, Henan University of Science and TechnologyABSTRACTThe heavy backup roll is a key component in large steel rolling production line, as it supports the work roll to prevent any excessive deflection. The backup rolls are traditionally produced by large-scale forging process. To accurately describe the high-temperature flow behavior of a newly developed roll material Cr5 alloy for numerical forging simulation, a thermal simulation testing machine, Gleeble-1500D, is used in this work. The isothermal com-pression experiments are carried out to study the flow behavior of Cr5 alloy at temperature range of 900–1200°C, and strain rate range of 0.005–5 s−1. Hansel–Spittel model is thus used to establish the constitutive equation of the material under hot deformation. The accuracy of the constitutive equation is analyzed by using correlation coeffi-cient r. The validation shows that this equation can accurately predict the thermal deformation behavior Cr5 alloy.KEYWORDS: Cr5 alloy steel, hot deformation, Hansel–Spittel model, dynamic recrystallization

Hot deformation behavior and Hansel–Spittel constitutive model of Cr5 alloy for heavy backup roll

https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1192&amp;context=icpns

Hot deformation behavior and Hansel–Spittel constitutive model of Cr5 alloy for heavy backup roll

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