电感耦合等离子体原子发射光谱法测定FGH96粉末高温合金中杂质元素  

Determination of impurity elements in FGH96 powder metallurgy superalloy by ICP-AES

作　　者：庞晓辉 高颂 赵海燏 梁钪 Pang Xiaohui;Gao Song;Zhao Haiyu;Liang kang(AECC Beijing Institute of Aeronautical Materials;Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation;Key Laboratory of Science and Technology on Aeronautical Materials Testing and Evaluation, Aeroengine Corporation of China;Aviation Key Laboratory of Science and Technology on Aeronautical Materials Testing and Evaluation, Beijing 100095, China)

机构地区：[1]中国航发北京航空材料研究院 [2]航空材料检测与评价北京市重点实验室 [3]中国航空发动机集团材料检测与评价重点实验室 [4]材料检测与评价航空科技重点实验室,北京100095

出　　处：《分析仪器》2019年第4期27-30,共4页Analytical Instrumentation

摘　　要：FGH96粉末高温合金中杂质元素V、Mn、Fe、Cu、Ta、Hf对合金性能有直接影响,快速准确测定杂质元素含量有重要意义。本研究采用电感耦合等离子体原子发射光谱法(ICP-AES)测定粉末高温合金FGH96中杂质元素,通过优化试样溶解方法、考察合金基体和共存元素对待测元素的影响、优化了仪器工作参数,最终采用盐酸、硝酸混合酸溶解试样,确定各待测元素分析线分别为V 309.310nm、Mn 257.610nm、Fe 239.562nm、Cu327.393nm、Ta 226.230nm、Hf 264.141nm,并通过对工作曲线进行基体匹配消除基体的影响。样品测定试验和加入回收试验表明,方法回收率在90%~120%之间,检出限是0.003~0.01μg/mL,相对标准偏差小于9%。The effects of alloy matrix and coexisting elements on the measured elements were investigated by optimizing the sample dissolution method, and the working parameters of the instrument were optimized. The sample was finally decomposed by mixed acid(HCl and HNO 3). The analytical lines were set as V 309.310 nm, Mn 257.610 nm, Fe 239.562 nm, Cu 327.393 nm, Ta 226.230 nm and Hf 264.141nm, respectively. The matrix effect was eliminated by matrix matching of the working curve. The detection limit was 0.003-0.01μg/ml, the recovery ranged from 90% to 120% and the relative standard deviation(RSD) was less than 9%.

关 键 词：电感耦合等离子体原子发射光谱法 FGH96粉末高温合金 杂质元素 

分 类 号：O657.31[理学—分析化学]