Finite element modeling of creep behavior of porous nickel alloys at the operating conditions of molten carbonate fuel cell

摘要：

In this paper, creep behavior of porous Ni-Al alloys for molten carbonate fuel cell (MCFC) anode materials at 650 C was simulated by using finite element method. Influences of porosity, pore size, and loading on the material deformation behavior and stress distribution were investigated, respectively. The results show that the material service life is decreased with the porosity and pore diameter increasing if other conditions are constant and stresses mainly distribute in the weak edges of porous materials. The porous materials are inclined to deform, especially for the border regions of porous materials, when the loading becomes larger. The finite element simulation of the creep behavior of porous Ni-Al alloys can be used for predicting the material characteristics and lifetime.

关键词： Molten carbonate fuel cell Creep Nickel alloy Porosity Finite element analysis

作者: Zhuo He Jian Chen Jianjun He Jianlin Chen Yanjie Ren Wei Qiu

作者单位: School of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410114, China

会议类型: 国际会议

会议名称: 2011 International Symposium on Structural Integrity 2011国际结构完整性学术研讨会--核工程结构完整性技术 ISSI 2011

会议地点: 合肥

会议语种:英文

页码: 139-143

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）