The numerical simulation for high temperature creep of the porous Cu alloy

被引：2

作者：

Chen, Jian ^{[1
]}

Huang, Zihan ^{[1
]}

Li, Wei ^{[1
]}

Ren, Yanjie ^{[1
]}

He, Zhuo ^{[1
]}

Qiu, Wei ^{[1
]}

He, Jianjun ^{[1
]}

Chen, Jianlin ^{[1
]}

机构：

[1] Changsha Univ Sci & Technol, Sch Energy & Power Engn, Changsha 410114, Hunan, Peoples R China

来源：

ENGINEERING MATERIALS VII | 2014年 / 573卷

关键词：

molten carbonate fuel cell; porous Cu alloy; elevated temperature; creep; numerical simulation; CARBONATE FUEL-CELLS; SINTERING RESISTANCE; ANODE ELECTRODE;

D O I：

10.4028/www.scientific.net/KEM.573.105

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this research, the compression deformation were investigated under different elevated temperatures and strain rates, in order to obtain the creep constitutive equation. The effects of aperture load and pore shape on the compression properties of porous Cu alloys were studied by simulating the creep compression deformation at elevated temperature in ANSYS software. Pore size, pore shape and load are the main factors on the high temperature compression creep properties in porous Cu alloys. Samples with larger pore size, higher load and temperature showed inferior compression creep resistance such as bigger creep deformation, faster creep rates, and more unstable creep deformation. Stress concentrations generating around the edge in the wall of the pore were observed. Otherwise, the shape of pore has a severe influence on the structure properties of the material, i.e. every increase of pore edge corresponds to a decrease of stability in structure.

引用

页码：105 / 112

页数：8

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