Paper Title:
Critical Strain Model of Cr4 Steel for Heavy Supporting Roller
  Abstract

Critical strain is the basis to determine whether the dynamic recrystallization occurs during hot deformation process, it is important for designers to control hot forming process and microstructure of final product. In order to investigate the influence of deformation temperature and strain rate on critical strain of Cr4 steel, hot compression simulation experiment was conducted for Cr4 steel in the temperature range of 750~1200°C and strain rate of 0.002~5S-1 by means of Gleeble−1500D thermo-simulation machine. The results showed that the critical strain increase with decreasing deformation temperature and increasing strain rate. Based on the experimental data and regression analysis method, the mathematical model of the critical strain of Cr4 steel is constructed. The critical strain model provides data support to predict the dynamic recrystallization during Cr4 heavy supporting roller hot forging process.

  Info
Periodical
Chapter
Chapter 8: Material Processing Technology
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
1770-1773
DOI
10.4028/www.scientific.net/AMM.117-119.1770
Citation
X. W. Chen, Q. Zhang, "Critical Strain Model of Cr4 Steel for Heavy Supporting Roller", Applied Mechanics and Materials, Vols. 117-119, pp. 1770-1773, 2012
Online since
October 2011
Export
Price
$32.00
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