XU Zhen-Ming1*, ZHENG Ming-Bo1, LIU Zhen-Hui1, LIU Qing-Sheng2
1. College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016, China; 2. Faculty of Materials,Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000, China