形状记忆合金在土木工程中的阻尼特性研究  

Study on Damping Characteristics of Shape Memory Alloy in Civil Engineering

作　　者：仝国芸[1] 王云龙[1] 董中奇[2] 

机构地区：[1]河北工业职业技术学院建筑工程系,河北石家庄050091 [2]河北工业职业技术学院材料工程系,河北石家庄050091

出　　处：《铸造技术》2016年第12期2553-2556,共4页Foundry Technology

摘　　要：采用真空烧结的方法制备了SiC含量分别为0%、3%和5%的土木工程用SiC/NiTi复合材料,并对三种复合材料的物相组成、显微组织和阻尼性能进行了研究。结果表明,随着复合材料中SiC含量的增加,土木工程用SiC/NiTi复合材料的密度和孔隙率都表现为逐渐降低,第二相的种类和含量逐渐增加;土木工程用SiC/NiTi复合材料的内耗值会随着SiC含量的增加而逐渐降低。The SiC/NiTi composites with different SiC content of 0%, 3% and 5% were prepared by vacuum sintering method, and the phase composition, microstructure and damping properties of three composites were studied. The results show that, with the increase of SiC content in the composite, the density and porosity of the SiC/NiTi composite decreases gradually, the kinds and content of the second phase increases gradually. The friction values of SiC/NiTi composite decrease With the increase of SiC content.

关 键 词：土木工程 形状记忆合金 第二相 阻尼 

分 类 号：TU599[建筑科学—建筑技术科学] TG139.6[一般工业技术—材料科学与工程]