《2016-2》.pdfVIP

22 2 Vol. 22, No. 2 2010 2 Journal of Iron and Steel Research February 2010 2205 1, 2 2 2 1 宋红梅 , 江来珠 , 余 敏 , 林 勤 ( 1. , 1000 3; 2. , 200431) : 2205 1000~ 1200 0 01~ 30 s- 1 sinhArrhenius 519KJ/ mol T EM , : ; : T G 142 71 : A :2010) 02004 105 Hot Workability of 2205 Duplex Stainless Steel 1, 2 2 2 1 SONG Hongmei , JIANG Laizhu , YU M in , LIN Qin ( 1. University of Science and T echnology Beijing, Beijing 1000 3, China; 2. Baoshan Iron and Steel Co, Ltd, Research Institute, Shanghai 200431, China) Abstract:T he duplex stainless steel 2205 w as subjected to compression test ing over the range of temperature from 1000 to 1200 and strain rates from 0 01- 30s- 1 to their hot w orking behavior . The characterizes of the flow curves w ere investigated and the activation energy of 519 KJ/ mol w as calculated by sinhArrhenius equation. T he optical microscopy and Transmission electron microscopy (T EM) observat ion w ere employed to study the recovery and recrystallization behavior in bot h austenite and ferrite in different hot w orking condition. Key words: duplex stainless steel; hot workability Cl- , 300 1 试验过程 120tAOD 2205, ( , %) 1, 200 mm , , 30 mm , mm ! 12 mm , T her , momasterZ [ 1- 2] : 10 / s 2205 1000~ 1200 1250 min, 5 / s 001~ 30 s- 1 , 30 s, 1200~ sinhArrhenius 1000 50 , 001, 01, 5, - 1 , 30 s , 0 , , : (