The present study focuses on the completely recrystallized grain growth of NiCrMoV steel. All the
samples were austenitised at 1 250 ?C for 5min, and then were compressed with strain rate of 0.01 s?1 and finial
strain of 0.8. Once the compression completed, the specimens were held for different time before water quenching.
Based on the experimental results, the completely recrystallized grain growth model was established and the effects
of temperature and holding time on austenite grain size were investigated. Comparison between the experimental
and predicted results was carried out. A good agreement between the experimental and predicted results verifies
the developed model.
CHEN Fei*(陈 飞), LI Cui-dong (李翠冬), CUI Zhen-shan (崔振山)
. Modeling the Completely Recrystallized Grain Growth of NiCrMoV Rotor Steel[J]. Journal of Shanghai Jiaotong University(Science), 2015
, 20(5)
: 600
-605
.
DOI: 10.1007/s12204-015-1667-y
[1] Cao Y C, Wei X L, Wu J X, et al. Development of ultra-supercritical power plant in china[C]//International Conference on Power Engineering.Hangzhou, China: [s.n.], 2007: 231-236.
[2] Chen Fei. Simulation of microstructure evolution during discontinuous hot forging processes using cellular automaton method [D]. Shanghai: School of Materials Science and Engineering, Shanghai Jiao Tong University,2012 (in Chinese).
[3] Chen R K, Gu J F, Han L Z, et al. Novel process to refine grain size of NiCrMoV steel [J]. Material Science Technology, 2012, 28(7): 773-778.
[4] ASTM E112-13, Standard test methods for determining average grain size [S].
[5] Sakai T. Dynamic recrystallization microstructures under hot working conditions [J]. Journal of Materials Processing Technology, 1995, 53: 349-361.
[6] Shaban M, Eghbali B. Characterization of austenite dynamic recrystallization under different Z parameters in a microalloyed steel [J]. Journal of Materials Science & Technology, 2011, 27(4): 359-363.
[7] Kim S-II, Yoo Y C. Dynamic recrystallization behavior of AISI 304 stainless steel [J]. Materials Science and Engineering A, 2001, 311(1): 108-113.
[8] Muojekwu C A. Modeling of thermomechanical and metallurgical phenomena in steel strip during hot direct rolling and run out table cooling of thin-cast slabs[D]. Columbia: Department of metals and Materials engineering, the University of British Columbia, 1998.
[9] Sellars C M. Computer modelling of hot-working processes [J]. Materials Science and Technology, 1985,1: 325-331.
