Zr含量及固溶温度对Cu-Zn-Al形状记忆合金性能的影响  

Influence of Zr Content and Solution Temperature on Properties of Cu-Zn-Al SME Alloy

作　　者：周如[1] 陈忠家[1] 张志[1] 姚奇[1] 

机构地区：[1]合肥工业大学 材料科学与工程学院,安徽合肥230009

出　　处：《有色金属加工》2014年第3期14-17,共4页Nonferrous Metals Processing

基　　金：安徽省科技计划项目(09020203073)

摘　　要：通过金相观察、形状回复率测试和拉伸试验,研究Zr含量及固溶温度对Cu-Zn-Al形状记忆合金性能的影响。结果表明:在一定范围内,增加Zr含量,可以细化晶粒,提高铜基记忆合金的记忆性能、抗拉强度和延伸率,改善合金冷加工性能;固溶温度对铜基形状记忆合金影响很大,在810℃时,金相呈现典型的板条状马氏体,形状回复率能达到90%以上,抗拉强度和延伸率也较高。The paper studied the influence of Zr content and solution temperature on properties of Cu-Zn-Al SME al oy via metal ographic observation, shape recovery rate test and tensile testing, it concluded that the increase in Zr content within a certain range can improve properties of copper-based SME al oy on shape memory effect, tensile strength and elongation by grain refinement, as wel as raise the performance of al oy cold work; Solution temperature has a significant influence on microstructure and properties of the al oy： typical lath martensite emerged in metal ographic observation at 810℃, shape recovery rate was over 90%with higher tensile strength and elongation.

关 键 词：固溶温度 回复率 

分 类 号：TG139.6[一般工业技术—材料科学与工程]