作者机构:[1]School of Materials Science and Engineering, Southeast University, [2] Jiangsu Key Laboratory for Advanced Metallic Materials, Nanjing 211198, China
相关基金:Acknowledgements The authors would like to thank Profs. Guoxiong Sun and Ye Pan at Southeast University, and Dr. Q.G. Wang at GM Powertrain, for valuable discussion. This work was supported by the National Natural Science Foundation of China under Grant No. 50771031 and the Research Foundation of Southeast University under Grant No. XJ0612238.