电感耦合等离子体原子发射光谱法测定AlNbTiVZr高熵合金中铝铌钛钒锆  

Determination of aluminum,niobium,titanium,vanadium and zirconium in AlNbTiVZr high entropy alloy by inductively coupled plasma atomic emission spectrometry

作　　者：朱茜 郭勇[1] ZHU Xi;GUO Yong(College of Chemistry,Sichuan University,Chengdu 610064,China;Chengdu Advanced Metal Materials Industry Technology Research Institute Co.,Ltd.,Chengdu 610300,China)

机构地区：[1]四川大学化学学院,四川成都610064 [2]成都先进金属材料产业技术研究院股份有限公司,四川成都610300

出　　处：《冶金分析》2023年第10期29-35,共7页Metallurgical Analysis

摘　　要：AlNbTiVZr合金中各主元素原子个数比需达到1∶1∶1∶1∶1才能产生高熵效应。对于多元素合金中主元素的测定,经典化学分析法干扰多、分离操作繁琐、流程长。实验采用氢氟酸-硝酸溶解样品,确定各待测元素的分析线分别为Al 396.152 nm、Nb 269.706 nm、Ti 323.657 nm、V 292.402 nm、Zr 327.305 nm,选择Y 371.030 nm为内标线,实现了电感耦合等离子体原子发射光谱法(ICP-AES)对AlNbTiVZr合金中高含量铝、铌、钛、钒、锆的测定。方法测定范围为:7.50%~17.50%(铝)、25.00%~40.00%(铌)、15.00%~25.00%(钛)、15.00%~25.00%(钒)和15.00%~35.00%(锆);各待测元素校准曲线线性相关系数均大于0.999。按照实验方法测定两个AlNbTiVZr合金样品中铝、铌、钛、钒、锆含量,测定结果的相对标准偏差(RSD,n=6)均小于1.0%;对另两个AlNbTiVZr合金样品进行正确度考察,测定值与标准方法的测定值相吻合。The atomic number ratio of each main element in AlNbTiVZr alloy needs to reach 1∶1∶1∶1∶1 to produce high entropy effect.For the determination of main elements in multi-element alloys,the classical chemical analysis methods usually have many interferences,cumbersome separation operations,and long processes.The sample was dissolved with HF-HNO3.Al 396.152 nm,Nb 269.706 nm,Ti 323.657 nm,V 292.402 nm and Zr 327.305 nm were selected as the analytical lines,and Y 371.030 nm was selected as the internal standard line.A method for the determination of high content aluminum,niobium,titanium,vanadium and zirconium in AlNbTiVZr alloy by inductively coupled plasma atomic emission spectrometry(ICP-AES)was established.The detection range of the method was as follows:7.50%-17.50%for aluminum,25.00%-40.00%for niobium,15.00%-25.00%for titanium,15.00%-25.00%for vanadium,and 15.00%-35.00%for zirconium,respectively.The linear correlation coefficients of calibration curves were all higher than 0.999.The contents of aluminum,niobium,titanium,vanadium and zirconium in two AlNbTiVZr alloy samples were determined according to the experimental method,and the relative standard deviations(RSD,n=6)of determination results were less than 1.0%.The trueness test was conducted on another two AlNbTiVZr alloy samples,and the found results were consistent with those obtained by the standard methods.

关 键 词：电感耦合等离子体原子发射光谱法(ICP-AES) AlNbTiVZr高熵合金 铝 铌 钛 钒 锆 内标校正 光谱干扰 

分 类 号：O657.31[理学—分析化学] TF801.3[理学—化学]