Paper Title:

Mathematical Model of Hot Deformation Resistance of X120 Pipeline Steel

Periodical Advanced Materials Research (Volumes 538 - 541)
Main Theme Materials Processing Technology II
Edited by Liancheng Zhao, Haowei Wang and Changfa Xiao
Pages 1724-1731
DOI 10.4028/www.scientific.net/AMR.538-541.1724
Citation Hong Wei Zheng et al., 2012, Advanced Materials Research, 538-541, 1724
Online since June, 2012
Authors Hong Wei Zheng, Di Tang, Hui Bin Wu, Liu Yang
Keywords Deformation Resistance, Hot Compression Test, Mathematical Model, X120 Pipeline Steel
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Abstract

The high-temperature deformation resistance of X120 pipeline steel was studied under different deformation temperature and different deformation rate through the hot compression test on the Gleeble-3500 thermal/mechanics simulation test machine. The influence of deformation degree, deformation temperature and deformation rate on deformation resistance was thoroughly investigated. The deformation resistance of X120 pipeline steel increased slowly when deformation degree was higher than 0.2. With the increase of deformation temperature, the work-hardening effect was weakened, so the deformation resistance decreased. And the deformation rate had dual influences on the deformation resistance, including the effect of temperature and time. Based on the experiment data, the parameters in the mathematical model were regressed by using SPSS (Statistic Package for Social Science), and the mathematical model of the deformation resistance of X120 pipeline steel was established finally. Through the regression analysis, the model had been proved to have great matching precision.