|
|
Hot Deformation Behavior of F6NM Stainless Steel |
Long-teng MA1,Li-min WANG1,Zheng-dong LIU1,Gang YANG1,Lun LU2,Meng-du PENG1,3 |
1. Institute for Special Steels, Central Iron and Steel Research Institute, Beijing 100081, China 2. Technical Center of Fushun Special Steel Co., Ltd., Dongbei Special Steel Group Co., Ltd., Fushun 113001, Liaoning,China 3. Faculty of Materials Science and Engineering, Kunming University of Science and Technology,Kunming 650093, Yunnan, China |
|
|
Abstract The hot deformation behavior of F6NM stainless steel was investigated by hot compression test in a Gleeble-1500D thermal-mechanical simulator. The flow strain-stress curves were obtained and the corresponding metallographic observation of this steel under different deformation conditions was also carried out. This steel exhibited dynamic recrystallization (DRX) in the temperature range of 1273-1473 K and the strain rate range of 0.01-0.1 s-1. The activation energy for hot deformation was determined to be 457.91 kJ/mol, and the hot deformation equations were also established. The flow instability zone was determined and could be divided into two regions. The first one was located in the temperature range of 1173-1348 K and the strain rate range of 0.056-10 s-1, while the second one is in the temperature range of 1398-1448 K and the strain rate range of 1.25-10 s-1. In the end, the optimum conditions for hot working were provided.
|
Received: 05 September 2013
Published: 13 November 2014
|
Fund:National Outstanding Youth Science Foundation of China |
Corresponding Authors:
Long-Teng MA
E-mail: m_l_t_@msn.com
|
|
|
|
[1] |
Zong-ye Ding,Di Zhang,Qiao-dan Hu,,*,Long Zeng,Jian-guo Li,. Constitutive analysis and optimization on hot working parameters of as-cast high Cr ultra-super-critical rotor steel with columnar grains[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 916-924. |
[2] |
Yong-xing Jiao,Jian-sheng Liu*,Xing-wang Duan,Xiao-hua Zheng,Wen-wu He. Prediction of critical forging penetration efficiency for 06Cr19Ni9NbN steel by dynamic recrystallization[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 649-653. |
[3] |
Gan- lin XIE,An HE,Hai- long ZHANG,Gen- qi WANG,Xi- tao WANG. A Physically Based Dynamic Recrystallization Model Considering Orientation Effects for a Nitrogen Alloyed Ultralow Carbon Stainless Steel during Hot Forging[J]. Chinese Journal of Iron and Steel, 2016, 23(4): 364-371. |
[4] |
Xin-gang LIU,Li-ge ZHANG,Rong-sheng QI,Lei CHEN,Miao JIN,Bao-feng GUO. Prediction of Critical Conditions for Dynamic Recrystallization in 316LN Austenitic Steel[J]. Chinese Journal of Iron and Steel, 2016, 23(3): 238-243. |
[5] |
Wei ZHANG,Jing ZHANG,Ying HAN,,Rong LIU,De-ning ZOU,Guan-jun QIAO. Metadynamic Recrystallization Behavior of As-cast 904L Superaustenitic Stainless Steel[J]. Chinese Journal of Iron and Steel, 2016, 23(2): 151-159. |
[6] |
Ning LIU,,Zheng-dong LIU,,Xi-kou HE,Zhi-qiang YANG,Long-teng MA. Hot Deformation Behavior of SA508GR.4N Steel for Nuclear Reactor Pressure Vessels[J]. Chinese Journal of Iron and Steel, 2016, 23(12): 1342-1348. |
|
|
|
|