Ni及热处理对ZA35合金阻尼性能的影响  

Effect of Ni and heat treatment on damping property of ZA35 alloy

作　　者：刘敬福[1,2] 杨光[1] 白彦华[2] 

机构地区：[1]辽宁工程技术大学材料科学与工程学院,辽宁阜新123000 [2]沈阳工业大学材料科学与工程学院,辽宁沈阳110178

出　　处：《兵器材料科学与工程》2014年第4期52-54,共3页Ordnance Material Science and Engineering

基　　金：辽宁省教育厅创新团队项目(2008T137)

摘　　要：研究合金元素Ni和热处理对ZA35合金组织和阻尼性能的影响。结果表明:0.3%Ni使ZA35合金组织细化,二次枝晶臂间距减小,热处理后出现粒状组织;ZA35合金的内耗随温度升高而增加,随测试频率升高而下降,在测试频率为1 Hz、温度为140℃,ZA35合金的内耗达到0.076;测试温度为140℃,ZA35-0.3%Ni合金阻尼较ZA35合金增加12.1%,热处理后阻尼较ZA35合金增加25.8%。The effect of Ni and heat treatment on microstructure and damping property of ZA35 alloy was investigated. The results show that after heat treatment of ZA35 alloy with 0.3%Ni addition, the microstructure refines, the second dendrite arm space diminishes and particular structure is found. The internal friction of ZA35 alloy increases with the temperature increasing, decreases with the increase of test frequency, and goes up to 0.076 at the temperature of 140 ℃ and frequency of 1 Hz. Compared with ZA35 alloy, the damping property of ZA35-0.3Ni alloy increases by 12.t% and 25.8% after heat treatment.

关 键 词：NI 热处理 ZA35合金 阻尼性能 

分 类 号：TG174.2[金属学及工艺—金属表面处理]