Al对Ti_(70)Zr_(20)Ta_(10)合金力学性能的影响  

Effect of Al Addition on Mechanical Properties of Ti_(70)Zr_(20)Ta_(10) Alloys

作　　者：徐家文 梁磊 刘爱莲 高志远 XU Jia-wen;LIANG Lei;LIU Ai-lian;GAO Zhi-yuan(College of Material Science and Engineering,Heilongjiang University of Science and Technology,Heilongjiang Harbin 150022,China)

机构地区：[1]黑龙江科技大学材料科学与工程学院,黑龙江哈尔滨150022

出　　处：《广州化工》2024年第5期88-90,100,共4页GuangZhou Chemical Industry

基　　金：黑龙江省省属高等学校基本科研业务项目(2021-KYYWF-1457,2022-KYYWF-0535)。

摘　　要：为了研究Al对固溶处理态Ti_(70)Zr_(20)Ta_(10)合金力学性能的影响,本文利用光学显微镜、扫描电镜和万能试验机研究了Ti_(70)Zr_(20)Ta_(10)-xAlx合金的显微组织和室温拉伸性能。结果表明,Al元素固溶到马氏体基体中形成固溶体,几乎不改变固溶态Ti-Zr-Ta合金的晶粒尺寸,Ti-Zr-Ta-Al合金室温下均处于马氏体状态。Al的加入改善了Ti-Zr-Ta合金的力学性能,Ti-Zr-Ta-Al合金室温抗拉强度随Al含量增加而升高,断裂延伸率随Al含量的增加呈先增加后减少的趋势,当Al含量为1.0at%时,Ti-Zr-Ta-Al合金断裂延伸率最大(13.92%)。In order to investigate the effect of aluminum content on mechanical properties of Ti_(70)Zr_(20)Ta_(10) alloy,the microstructure and tensile properties at room temperature were studied by optical microscopy,scanning electron microscopy and universal testing machine.The results showed that Al addition didn t change the grain size of Ti-Zr-Ta alloy and Al solubilizes in the martensite matrix,and all the alloys were in martensite state at room temperature.The mechanical properties of Ti-Zr-Ta alloywas improved by Al addition.With the Alcontent increased,the tensile strength of Ti_(70)Zr_(20)Ta_(10)-x Al x alloys increased.Moreover,the elongation of the experimental alloys firstly increased and then decreased with the increase of Al content,and the elongation of Ti-Zr-Ta-Al alloy containing 1.0at%Al had the maximum value(13.92%).

关 键 词：Ti-Zr-Ta合金 AL 高温形状记忆合金 力学性能 

分 类 号：TG139.6[一般工业技术—材料科学与工程]