看谱法分析镍基高温合金中的铪  

Analysis of hafnium in nickel-based superalloys by visual spectroscopy

作　　者：陈靖 曹方 付二红 杨春晟 庞晓辉 CHEN Jing;CAO Fang;FU Erhong;YANG Chunsheng;PANG Xiaohui(AECC Beijing Institute of Aeronautical Materials,Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Key Laboratory of Aeronautical Materials Testing and Evaluation,Aero Engine Corporation of China,Beijing 100095,China;AECC AERO Science and Technology Co.,Ltd.,Chengdu 610503,China)

机构地区：[1]中国航发北京航空材料研究院,航空材料检测与评价北京市重点实验室,中国航空发动机集团材料检测与评价重点实验室,北京100095 [2]中国航发航空科技股份有限公司,成都610503

出　　处：《化学分析计量》2022年第8期35-38,共4页Chemical Analysis And Meterage

摘　　要：交流电弧火花发生器与样品之间产生交流电弧,使用光栅看谱镜对弧光的可见光光谱进行观测。采用531.16 nm处铪元素谱线为分析线,531.02 nm处钴元素谱线为比较线,对镍基高温合金样品中的铪元素含量进行定性和半定量分析。当观测到Hf 531.16 nm稳定出现并且强度小于Co 531.02 nm时,可判定样品中铪元素质量分数约为1%~2%;若观测不到Hf 531.16 nm时,可判定样品中铪元素质量分数小于1%。采用电感耦合等离子体原子发射光谱法对样品中铪元素含量进行测量,测定结果与看谱分析结果一致。看谱分析法可用于镍基高温合金中铪元素的定性、半定量分析和牌号鉴别。An AC arc was generated between the AC arc spark generator and the sample,and the visible light spectrum of the arc was observed with a grating spectroscopic mirror.The hafnium element spectral line at 531.16 nm was used as the analytical line,and the cobalt element spectral line at 531.02 nm was used as the comparison line to conduct qualitative and semi-quantitative analysis of the hafnium element content in nickel-based superalloy samples.When Hf 531.16 nm was observed to appear stably and the intensity was lower than that of Co 531.02 nm,it could be determined that the mass fraction of hafnium in the sample was about 1%to 2%;if no Hf 531.16 nm was observed,it could be determined that the mass fraction of hafnium in the sample was less than 1%.The content of hafnium element in the sample was measured by ICP-AES,which was consistent with the analysis result of visual spectroscopic analysis.

关 键 词：看谱分析 交流电弧 铪 镍基高温合金 

分 类 号：O657.3[理学—分析化学]