基金Projects (61274081, 50902113, 50902114) supported by the National Natural Science Foundation of ChinaProject (2011CB610406) supported by the National Basic Research Program of China+2 种基金Project (B08040) supported by the 111 Project of ChinaProject (JC20100228) supported by Foundation for Fundamental Research of Northwestern Polytechnical University (NPU), ChinaProject (SKLSP201012) supported by the Research Fund of the State Key Laboratory of Solidification Processing (NPU), China