Skip to main content
    • Aa
    • Aa

Study on microstructural evolution and constitutive modeling for hot deformation behavior of a low-carbon RAFM steel

  • Jianguo Chen (a1), Yongchang Liu (a1), Chenxi Liu (a1), Xiaosheng Zhou (a1) and Huijun Li (a1)...

The constitutive equation was established based on the consideration of strain compensation to describe the hot deformation behavior of low carbon reduced activation ferritic/martensitic (RAFM) steels at the temperatures of 850–1050 °C and the strain rates of 0.01–10 s−1. The result indicates that the flow stress is increased with the increase of strain rate but decreased with increase of deformation temperature. During the hot deformation process, the increase of temperature is beneficial to attain the complete dynamic recrystallization (DRX). However, excessively high temperature leads to grow up of dynamic recrystallized grain. Higher strain rate leads to finer recrystallized grains. The material constants (α, n, A) and deformation activation energy (Q) are calculated by the regression analysis. The increase of strain caused the decrease of Q, indicating the DRX occurred more easily. In addition, the developed constitutive equation could accurately predict the hot deformation behavior of the low carbon RAFM steel.

Corresponding author
a) Address all correspondence to this author. e-mail:
Hide All

Contributing Editor: Jürgen Eckert

Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

S.J. Zinkle , A. Moeslang , T. Muroga , and H. Tanigawa : Multimodal options for materials research to advance the basis for fusion energy in the ITER era. Nucl. Fusion 53, 113 (2013).

K. Ehrlich , W. Cierjacks , S. Kelzenberg , and A. Moeslang : The development of structural materials for reduced long-term activation. In 17th International Symposium on Effects of Radiation on Materials, Vol. 1270, D. Gelles , R. Nanstad and A. Kumar , eds. (ASTM STP, West Conshocken, 1996); pp. 11091122.

M.R. Gilbert and R.A. Forrest : Comprehensive handbook of activation data calculated using EASY-2003. Fusion Eng. Des. 81, 15111516 (2006).

R.L. Klueh , D.J. Alexander , and M. Rieth : The effect of tantalum on the mechanical properties of a 9Cr–2W–0.25V–0.07Ta–0.1C steel. J. Nucl. Mater. 273, 146154 (1999).

Q. Huang , N. Baluc , Y. Dai , S. Jitsukawa , A. Kimura , J. Konys , R.J. Kurtz , R. Lindau , T. Muroga , G.R. Odette , B. Raj , R.E. Stoller , L. Tan , H. Tanigawa , A-A.F. Tavassoli , T. Yamamoto , F. Wan , and Y. Wu : Recent progress of R&D activities on reduced activation ferritic/martensitic steels. J. Nucl. Mater. 442, S2S8 (2013).

M. Taneike , K. Sawada , and F. Abe : Effect carbon concentration on precipitation behavior of M23C6 carbides and MX carbonitrides in martensitic 9Cr steel during heat treatment. Metall. Mater. Trans. A 35, 12551262 (2004).

M. Taneike , F. Abe , and K. Sawada : Creep-strengthening of steel at high temperature using nano-sized carbonitrides dispersions. Nature 424, 294296 (2003).

A.S. Taylor and P.D. Hodgson : Dynamic behaviour of 304 stainless steel during high Z deformation. Mater. Sci. Eng., A 528, 33103320 (2011).

Z. Akbari , H. Mirzadeh , and J.M. Cabrera : A simple constitutive model for predicting flow stress of medium carbon microalloyed steel during hot deformation. Mater. Des. 77, 126131 (2015).

S.K. Badjena : Dynamic recrystallization behavior of vanadium micro-alloyed forging medium carbon steel. ISIJ Int. 54, 650656 (2014).

C. Zhang , L. Zhang , W. Shen , C. Liu , Y. Xia , and R. Li : Study on constitutive modeling and processing maps for hot deformation of medium carbon Cr–Ni–Mo alloyed steel. Mater. Des. 90, 804814 (2016).

Y. Zhou , Y. Liu , X. Zhou , C. Liu , L. Yu , and C. Li : Processing maps and microstructural evolution of the type 347H austenitic heat-resistant stainless steel. J. Mater. Res. 30, 20902100 (2015).

W.T. Wang , X.Z. Guo , B. Huang , J. Tao , H.G. Li , and W.J. Pei : The flow behaviors of CLAM steel at high temperature. Mater. Sci. Eng., A 599, 134140 (2014).

Z.B. Zhang , O.V. Mishin , N.R. Tao , and W. Pantleon : Microstructure and annealing behavior of a modified 9Cr–1Mo steel after dynamic plastic deformation to different strains. J. Nucl. Mater. 458, 6469 (2015).

Z. Zhang , Y. Zhang , O.V. Mishin , N. Tao , W. Pantleon , and D.J. Jensen : Microstructural analysis of orientation-dependent recovery and recrystallization in a modified 9Cr–1Mo steel deformed by compression at high strain rate. Metall. Mater. Trans. A 47, 46824693 (2016).

Z.X. Xia , C. Zhang , N.Q. Fan , Y.F. Zhao , F. Xue , and S.J. Liu : Improve creep properties of reduced activation steels by controlling precipitation behaviors. Mater. Sci. Eng., A 545, 9196 (2012).

W.B. Liu , C. Zhang , Z.X. Xia , and Z.G. Yang : Improving high temperature creep resistance of reduced activation steels by addition of nitrogen and intermediate heat treatment. J. Nucl. Mater. 455, 402406 (2014).

S. Banerjee , P.S. Robi , A. Srinivasan , and L.P. Kumar : High temperature deformation behavior of Al–Cu–Mg alloys micro-alloyed with Sn. Mater. Sci. Eng., A 527, 24982503 (2010).

M.R. Rokni , A. Zarie-Hanzaki , A.A. Roostaei , and A. Abolhasani : Constitutive base analysis of a 7075 aluminum alloy during hot compression testing. Mater. Des. 32, 49554960 (2011).

H. Mirzadeh , J.M. Cabrera , J.M. Prado , and A. Najafizadeh : Hot deformation behavior of a medium carbon microalloyed steel. Mater. Sci. Eng., A 528, 38763882 (2011).

Y.C. Lin , Y.C. Xia , X.M. Chen , and M.S. Chen : Constitutive descriptions for hot compressed 2124-T851 aluminum alloy over a wide range of temperature and strain rate. Comput. Mater. Sci. 50, 227233 (2010).

H.Y. Li , D.D. Wei , J.D. Hu , Y.H. Li , and S.L. Chen : Constitutive modeling for hot deformation behavior of T24 ferritic steel. Comput. Mater. Sci. 53, 425430 (2012).

Y.C. Lin , M.S. Chen , and J. Zhong : Prediction of 42CrMo steel flow stress at high temperature and strain rate. Mech. Res. Commun. 35, 142150 (2008).

Q-s. Wu , S-h. Zheng , Q-y. Huang , S-j. Liu , and Y-y. Han : Continuous cooling transformation behaviors of CLAM steel. J. Nucl. Mater. 442, S67S70 (2013).

Y.C. Lin , M.S. Chen , and J. Zhong : Microstructure evolution in 42CrMo steel during compression at elevated temperatures. Mater. Lett. 62, 21322135 (2008).

C.M. Sellars and W.J. McTegart : On the mechanism of hot deformation. Acta Metall. 14, 11361138 (1966).

S. Srinivasulu and A. Jain : A comparative analysis of training methods for artificial neural network rainfall-runoff modes. Appl. Soft. Comput. 6, 295306 (2006).

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Full text views

Total number of HTML views: 4
Total number of PDF views: 79 *
Loading metrics...

Abstract views

Total abstract views: 162 *
Loading metrics...

* Views captured on Cambridge Core between 13th March 2017 - 22nd August 2017. This data will be updated every 24 hours.