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Effects of Rare Earth Ce on High Temperature Plastic Deformation and Dynamic Recrystallization of T91 Steel
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Zhan-chuan Zhang, Xiao-yang Fu, Ji-chun Yang
Rare Earth Steel | 2019, 45(6) : 79 - 84
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Rare Earth Steel | 2019, 45(6): 79-84
• Quality of Variety and Experiment and Research •
Effects of Rare Earth Ce on High Temperature Plastic Deformation and Dynamic Recrystallization of T91 Steel
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Zhan-chuan Zhang, Xiao-yang Fu, Ji-chun Yang
Affiliations
  • School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia Autonomous Region, China
Published: 2019-10-25 doi: 10.13647/j.cnki.btgkj.2019.06.020
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In order to study the high temperature deformation behavior of T91 steel containing 0.016% rare earth Ce, the thermal shrinkage test was carried out with the Gleeble-1500D thermal simulator. Its stress-strain curves were measured when the deformation temperature T was 1 100~1 250 ℃ and the strain rate was 0.5~5.0 s-1. The constitutive equation of high temperature plastic deformation was constructed with the Zener-Hollomon parametric method, the energy dissipation diagram was calculated and the high temperature deformed microstructure was studied with optical microscope. The results showed that the stress-strain curves of T91 steel with rare earth Ce were without characteristics of double peaks and there was dynamic recrystallization; the hot deformation activation energy calculated by flow stress model was 559. 46 kJ·mol-1, which indicated that the addition of rare earth Ce increased the hot deformation activation energy of T91 steel; rare earth Ce delayed the dynamic recrystallization process of T91 steel combining with the energy loss diagram and microstructure as well as dynamic recrystallization was easy to occur at high temperature and low strain rate.

flow stress  /  energy dissipation diagram  /  dynamic recrystallization  /  constitutive equation
张占川, 富晓阳, 杨吉春. 稀土Ce对T91钢高温塑性变形和动态再结晶的影响. 包钢科技, 2019 , 45 (6) : 79 -84 . DOI: 10.13647/j.cnki.btgkj.2019.06.020
Zhan-chuan Zhang, Xiao-yang Fu, Ji-chun Yang. Effects of Rare Earth Ce on High Temperature Plastic Deformation and Dynamic Recrystallization of T91 Steel[J]. Science & Technology of Baotou Steel, 2019 , 45 (6) : 79 -84 . DOI: 10.13647/j.cnki.btgkj.2019.06.020
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Year 2019 volume 45 Issue 6
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doi: 10.13647/j.cnki.btgkj.2019.06.020
  • Receive Date：2019-03-01
  • Online Date：2026-10-20
  • Published：2019-10-25
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  • Received：2019-03-01
Affiliations
    School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia Autonomous Region, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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