Development of quality control sample of GH4169 superalloy for spectrum analysis
WANG Minghai1, DU Jinhui2, LIN Fei3
1. China NIL Research Center for Proficiency Testing,Beijing 100081, China; 2. High Temperature Material Research Institute,Iron and Steel Research Institute Co., Ltd.,Beijing 100081, China; 3. NCS Testing Technology Co., Ltd.,Beijing 100081, China
Abstract：At present, there is no domestic GH4169 certified reference materials with high content of P and Nb for quality control in the testing process. The quality control samples of GH4169 superalloy with the highest content of P and Nb of 0.014% and 5.37% respectively were developed, which could meet the requirement of quality control in analysis process. 4 kinds of GH4169 raw materials produced in USA and China were selected to prepare quality control samples. The samples were determined by spark discharge atomic emission spectrometry, and the consistency of surface distribution and longitudinal distribution of each element in the raw material was investigated by t-test. The results showed that there was no segregation of each element。The homogeneity of the quality control samples was checked by variance analysis, and the results showed that the homogeneity of sample is well. The values and the expanded uncertainty of 12 elements,include Nb, P and Ni, Cr, Mo, Ti, etc. were determined by wet analysis method in 12 laboratories with rich experience in superalloy determination. The linearity between the quality control samples and the nickel-based certified reference materials was investigated by spark discharge atomic emission spectrometry and X-ray fluorescence spectrometry, and the results showed that there was a good linear relationship.
王明海, 杜金辉, 蔺菲. 光谱分析用GH4169高温合金质量控制样品的研制[J]. 冶金分析, 2022, 42(12): 83-90.
WANG Minghai, DU Jinhui, LIN Fei. Development of quality control sample of GH4169 superalloy for spectrum analysis. , 2022, 42(12): 83-90.
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