Lin Geng1*, Tongxiang Fan2, Yan Cui3, Xuexi Zhang1, Bolv Xiao4
1Harbin Institute of Technology, Harbin, 150001, China
2Shanghai Jiaotong University, Shanghai, 200240, China
3North China University ofTechnology, Beijing, 100144, China
4Institute of Metal Research Chinese Academy of Sciences, Shenyang, 101408, China
EXTENDED ABSTRACT: Due to their excellent properties such as light weight, high strength, high stiffness, multifunction and high reliability, representative Al and Ti metal-matrix composites (MMCs) can meet the severe requirements in the field of aerospace and thus leads to increasing applications in recent years. Since the traditional "case study" and "trial and error" methods have been widely adopted to deal with the development of new products for a long time, leading to problems of long development cycle, high cost, poor adaptability and so on, it is urgent to investigate a new high throughput development mode of low cost and fast response. In this paper, we collected interface information of Al and Ti matrix and 6 types of reinforcements combined integrated computing and experiments, built a database of the composite interface and formed an optimized strategy on the composite systems and their performances. Based on the optimization strategy of the composite systems, high throughput preparation methods of Al and Ti matrix composites based on pressureless infiltration and powder metallurgy were developed. High throughput characterization platforms, based on OM, SEM and synchrotron radiation (SR), were developed. These platforms realized the rapid characterization of both composition and morphology of 10x10 array samples, and simultaneous acquisition of multiple parameters in one single sample. Furthermore, a constitutive model of composite materials during forming process was constructed, so that the multi-scale modeling of microstructure evolution, defect formation and residual stress of composites and visual prediction of the microstructure and residual stress in a component can be realized. A software platform for the design of the forming process was built and may guide the precise forming of the composites. Above all, a variety of composite products have been cost- and time-efficiently developed and successfully applied in major national engineering fields such as aerospace, which has promoted the research technology and development of MMCs.
Keywords: material genetic engineering; integrated computing ; high throughput preparation; high throughput characterization; visual deformation prediction
Lin Geng is a full professor in the School of Material Science and Engineering at Harbin Institute of Technology in China. His current research interests are focused on the design, regulation, strengthening mechanisms, and application of Al and Ti matrix composites. He is the principal leader of the school of Materials Science and Engineering of Harbin Institute of Technology and the director of the National Key Laboratory of Materials Behavior and Evaluation Technology in Space Environment.