作者单位:YU Heng(School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China; State Key Laboratory of Advanced Steel Process and Products, Central Iron and Steel Research Institute, Beijing 100081, China)于恒(东北大学材料与冶金学院,辽宁沈阳110819;钢铁研究总院先进钢铁流程及材料国家重点实验室, 北京100081)ZHANG Chun-xia(State Key Laboratory of Advanced Steel Process and Products, Central Iron and Steel Research Institute, Beijing 100081, China)张春霞(钢铁研究总院先进钢铁流程及材料国家重点实验室, 北京100081)