Challenges to multiscale multiphysics modeling for the development of high temperature alloys
讲座名称：
Challenges to multiscale multiphysics modeling for the development of high temperature alloys
讲座时间：
2012-04-05
讲座人：
Tomonori Kitashima
形式：
校区：
兴庆校区
实践学分：
讲座内容：
应热流科学与工程教育部重点实验室和流体机械国家专业实验室刘立军教授的邀请，日本国立材料科学研究所的Tomonori Kitashima博士近期来访我校，访问期间将在学院作如下学术交流报告。
报告题目：Challenges to multiscale multiphysics modeling for the development of high temperature alloys
报告人：Dr. Tomonori Kitashima
时间： 2012年04月5日（周四）下午2:30-4:00
地点： 能动学院北二楼1401会议室
联系人：刘立军教授 电话：13571802763
报告摘要：
High temperature materials such as nickel-base superalloys and titanium alloys are used in the compressor and/or the turbine of thermal power plants and jet engines. Increasing the temperature capability of these alloys contributes to improving the thermal efficiencies of these thermal engines, which results in a reduction of CO2 gas emission and fuel consumption. Therefore, the development of materials with high temperature capabilities is sought by heavy industries, engine makers and airlines. In my work, modeling and development of nickel-base superalloys and titanium alloys have been carried out. In this talk, from the view of materials science, I will introduce how such high temperature materials can be developed using modeling and simulation as an example. These practical alloys are multicomponent systems in which the effects of elemental additions are not often well-known. Therefore, it is more efficient to combine the theoretical and empirical methods. After introducing multiscale multiphysics modeling as applied in my work, I will focus especially on the simulations of microstructure evolution during precipitation and oxygen solution during thermal oxidation using the phase-field method, the calphad (calculations of phase diagram) method, and the finite volume method.
相关视频