Title : "Dr. Xiaoyan Song from Beijing University of Technology visits STM Group" Location : "Engineering Department" Start Date : 25 January, 2016 End Date : 29 January, 2016 Description : “Nanoscale Cemented Carbides  Fundamental Studies and Industrial Applications” Dr. Xiaoyan Song College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing 100124, China. 26/01/2016 ore 10:00 Dipartimento di Ingegneria - Via della Vasca Navale 79, Rome – Stanza dir01 2°Piano Abstract In the presentation, our work progress regarding preparation, scaling up production and application of nanoscale cemented carbides (so called as hard metal materials) will be introduced. Using the unique in-situ synthesized WC-Co composite powder with super-ultrafine nanostructure, the dense ultrafine and nanocrystalline cemented carbide bulk materials were prepared. Detailed studies on the combination of WC and Co phases, characteristics of the WC/Co phase boundaries and WC/WC grain boundaries, and the factors that influence the mechanical properties of the cemented carbides were performed. Particularly, the mechanisms concerning the effects of the orientation relationship and atomic correspondence at interfaces on the fracture toughness and strength of the ultrafine and nanocrystalline cemented carbides were proposed. The developed techniques have been scaled up and the products are applied in industries. Our works are expected to provide effective approach to achieve superior combination properties of the nanostructured cermet materials. Dr. Xiaoyan Song is a group leader of Metallic Nanomaterials and Computational Materials Science at College of Materials Science and Engineering, Beijing University of Technology and Key Laboratory of Advanced Functional Materials, Ministry of Education of China. She received her Ph. D degree from University of Science and Technology Beijing in 1999, and worked as Humboldt fellow and visiting scholar at Darmstadt University of Technology, Germany in 2000-2003. She has published over 280 scientific papers, and has over 50 patents authorized. Some of her patents have been industrialized and lead to more than 10 kinds of high-grade engineering products. She has been engaged as the Associate Editor of Int. J. Refract. Met. Hard Mater. since 2013, and served as committee members of several international and domestic academic societies. Event Web Site : More info :