Effect of nitrogen content on the hot deformation behavior of 0Cr16Ni5Mo martensitic stainless steel

ZHANG Bao-li; CHEN Gang; SUN Yong-qing; YUAN Wu-hua; LIANG Jian-xiong

doi:10.13374/j.issn2095-9389.2017.10.010

Volume 39 Issue 10

Oct. 2017

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Article Navigation > Chinese Journal of Engineering > 2017 > 39(10): 1525-1531

ZHANG Bao-li, CHEN Gang, SUN Yong-qing, YUAN Wu-hua, LIANG Jian-xiong. Effect of nitrogen content on the hot deformation behavior of 0Cr16Ni5Mo martensitic stainless steel[J]. Chinese Journal of Engineering, 2017, 39(10): 1525-1531. doi: 10.13374/j.issn2095-9389.2017.10.010

Citation:

ZHANG Bao-li, CHEN Gang, SUN Yong-qing, YUAN Wu-hua, LIANG Jian-xiong. Effect of nitrogen content on the hot deformation behavior of 0Cr16Ni5Mo martensitic stainless steel[J]. Chinese Journal of Engineering, 2017, 39(10): 1525-1531. doi: 10.13374/j.issn2095-9389.2017.10.010

Citation:

ZHANG Bao-li, CHEN Gang, SUN Yong-qing, YUAN Wu-hua, LIANG Jian-xiong. Effect of nitrogen content on the hot deformation behavior of 0Cr16Ni5Mo martensitic stainless steel[J]. Chinese Journal of Engineering, 2017, 39(10): 1525-1531. doi: 10.13374/j.issn2095-9389.2017.10.010

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Effect of nitrogen content on the hot deformation behavior of 0Cr16Ni5Mo martensitic stainless steel

doi: 10.13374/j.issn2095-9389.2017.10.010

1) College of Materials Science and Engineering, Hunan University, Changsha 410082, China
2) Central Iron and Steel Research Institute, Beijing 100081, China

Received Date: 2017-01-10

Abstract

Abstract

The hot deformation behavior of 0Cr16Ni5Mo martensitic stainless steel with different nitrogen contents was studied on a Gleeble3800 thermal machine. The true strain-stress curves and deformed microstructures of the tested steels were investigated. The result shows that with an increase in nitrogen content, the stress increases and the recrystallized grain size reduces. Using the flow stress equation combined with Zener-Hollomon parameters, three constitutive equation models were established. Comparing the stress values from the constitutive equation models and the experiment, the hyperbolic sine model performed best. So, the constitutive equations for the tested steels were obtained by using the hyperbolic sine mode, with some improvements made during the calculation.
- martensitic stainless steel,
- nitrogen content,
- flow stress,
- recrystallized grain,
- constitutive model

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References(13)

References

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