作者单位:HU Shao-cheng,WANG Chao-gang,HU Xue-qiang,SHEN Xue-jing(China Iron & Steel Research Institute , Beijing 100081 China)胡少成,王超刚,胡学强,沈学静(钢铁研究总院,北京100081)MAO Jin-hua,GUO Yong-qian(Anyang Iron and Steel Group Co. , Ltd. , Anyang 455004,China)毛尽华,郭永谦(安阳钢铁集团有限责任公司,河南安阳455004)