North University of China, North University of China, North University of China, affiliation not provided to SSRN, affiliation not provided to SSRN, North University of China, University of Science and Technology of China (USTC) - School of Materials Science and Engineering, China Iron and Steel Research Institute (CISRI) - Institute for Special Steels, China Iron and Steel Research Institute (CISRI) - Institute for Special Steels and North University of China