Study on thermal deformation behavior and constitutive model of 304 stainless steel

YAO Shuo; CHEN Zhiying; ZHANG Ying; CAO Fenghua; SUN Yan

doi:10.12299/jsues.22-0141

Volume 36 Issue 4

Dec. 2022

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YAO Shuo, CHEN Zhiying, ZHANG Ying, CAO Fenghua, SUN Yan. Study on thermal deformation behavior and constitutive model of 304 stainless steel[J]. Journal of Shanghai University of Engineering Science, 2022, 36(4): 435-439. doi: 10.12299/jsues.22-0141

Citation:

YAO Shuo, CHEN Zhiying, ZHANG Ying, CAO Fenghua, SUN Yan. Study on thermal deformation behavior and constitutive model of 304 stainless steel[J]. Journal of Shanghai University of Engineering Science, 2022, 36(4): 435-439. doi: 10.12299/jsues.22-0141

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Study on thermal deformation behavior and constitutive model of 304 stainless steel

doi: 10.12299/jsues.22-0141

YAO Shuo^{1a
,},
CHEN Zhiying^{1a
,
,},
ZHANG Ying^1b,
CAO Fenghua²,
SUN Yan^1b

1a.
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
1b.
School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
2.
School of Mechanical Engineering, Shanghai Dianji University, Shanghai 200245, China

Received Date: 2022-05-11
Publish Date: 2022-12-30

Abstract

Abstract

Thermal deformation behavior of 304 stainless steel was investigated by utilizing Gleeble−3800 thermo-mechanical simulator. The true stress-strain curves of 304 stainless steel were obtained through the hot compression experiment with temperature range of 800~1200 ℃ and the strain rate range of 0.001~1 s⁻¹. The results show that the flow stress of 304 stainless steel increases with the reduction of temperature and the growth of strain rate during the hot deformation. According to the true stress-strain curves, the Arrhenius constitutive equation of 304 stainless steel was constructed. The hot deformation activation energy is 490 kJ/mol and the linear correlation coefficient between lnZ and ln
\begin{document}${\sigma _{\rm{p}}}$\end{document}
is 0.93, which shows that the stress values predicted by the model are in good agreement with the experimental ones.
- 304 stainless steel,
- thermal deformation,
- flow stress,
- constitutive model

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References(13)

References

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