The Tensile Behavior of Lotus-type Porous Copper Fabricated by Gasar Process

摘要：

　　Lotus-type porous copper with va rious pore structural parameters was fabricated by the Gasar process.The anisotropy in the uniaxial tensile behavior of the porous copper is examined.Math models and numerical simulation were per formed and confirmed by experimental data.Results show that tensile properties of porous Cu depend on porosity and tensile direction.Ultimate tensile strength of samples with the same porosity whose pore axes are parallel to tensile direction is better than that whose pore axes are perpendicular to ten sile direction.For the porous Cu whose pore axes are parallel to tensile direction, ultimate tensile strength decrease linearly with increasing the porosi ty, which indicate that pores have no stress concen tration on matrix.While that whose pore axes are perpendicular to tensile direction decrease signifi cantly as porosity increases.Ultimate tensile strength from experiments, models and numerical simulations of two kinds of specimens are consistent well.

关键词： lotus-type porous copper Gasar process tensile behavior ultimate strength stress concentration

作者: Zaijiu Li Qinglin Jin Yehua Jiang Rong Zhou

作者单位: Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,P.R.China

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 551-555

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）