摘要
烧结蒙乃尔合金多孔材料是重要的金属过滤材料之一,凭借其优良的耐高温抗腐蚀及良好的抗冲击、可焊接等优势广泛应用于化工、核工业、石化等诸多领域。随着蒙乃尔过滤材料应用领域的拓展及使用环境越来越苛刻,其力学性能的研究显得尤为重要。采用粉末冶金法制备20mm×25mm柱状压缩试件,利用MTS810对这些试件进行力学性能测试,采用准静态单一轴向的加载方式对试样进行压缩性能的测试,并详细分析了相同孔隙度下粒度对镍合金多孔材料压缩性能的影响,结果表明,镍合金多孔材料的压缩应力-应变曲线有塑性材料的特征;对于同一孔隙度的试样,弹性模量和屈服强度都随着粒度的减小而增加,当粒度<75μm时,屈服强度和弹性模量增加得很快。
Monel alloy sintered porous material is one of the important metallic filter materials. It is widely used in chemical, nuclear and petrochemical et al industries because it exhibits extremely high temperature corrosion resistance, high resistance to impact and good weldabilty. Research on its mechanical properties has become very important with application enlargement and condition more and more serious. In this paper, cylinder-like samples 20mm×25mm by powder metallurgy were selected for compression test. Experiments were carried out by MTS810 with unique axes load in quasi-static state. The effect of particle size on compressive property of nickel alloy porous materials with same porosity was investigated. The experiment results indicated that the compressive stress-strain curve of nickel alloy porous materials possess the characteristics of plastic materials. The elastic modulus and yield strength increase with decreasing particle size, such as particle size is less than 75μm, the elastic modulus and yield strength increase obviously.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第A03期527-529,共3页
Journal of Functional Materials
基金
国家高技术研究发展计划(863计划)重点资助项目(2009AA032601)
陕西省“13115”科技创新工程重大科技专项资助项目(2008ZDKG-40)
关键词
金属多孔材料
压缩
屈服强度
弹性模量
sintered porous material
condensation
elastic modulus
yield strength
