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Method for measuring aluminum content of high temperature alloy

A technology of superalloy and aluminum content, which is used in material excitation analysis, thermal excitation analysis, etc.

Active Publication Date: 2011-05-25
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is acid-insoluble aluminum in high-temperature alloys, and the usual sample dissolution method can only measure the content of acid-soluble aluminum in it. Our institute has conducted in-depth experiments in long-term testing work and scientific research, and has developed a method that can measure acid-soluble aluminum and acid-soluble aluminum in high-temperature alloys. Analysis of total insoluble aluminum repeated

Method used

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  • Method for measuring aluminum content of high temperature alloy

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0044] Measure the aluminum content in the InCo718 superalloy, and measure it on the following three instruments

[0045] Using JY ULTIMAIIC Inductively Coupled Plasma Emission Spectrometer, the working conditions and analysis lines of the instrument are as follows: incident power 1050W; reflected power: <10W; cooling air flow: 15L / min; sample lifting volume: 1.5mL / min; integration time: 5s; element analysis line: aluminum 394.40nm; internal standard analysis line: yttrium 371.03nm.

[0046] Using PE OPTIMA5300 Inductively Coupled Plasma Emission Spectrometer, the working conditions and analysis lines of the instrument are as follows: incident power: 1300W; reflected power: <10W; cooling air flow: 15L / min; sample lifting volume: 1.5mL / min; integration time: 1~5s; element analysis line: aluminum 394.40nm; internal standard analysis line: yttrium 371.03nm.

[0047] The TJA IRIS inductively coupled plasma emission spectrometer is used. The working conditions and analysis lines o...

Embodiment 2

[0067] Measure the aluminum content in the DZ125 superalloy, and measure it on the following three instruments

[0068] Using JY ULTIMAIIC Inductively Coupled Plasma Emission Spectrometer, the working conditions and analysis lines of the instrument are as follows: incident power 1050W; reflected power: <10W; cooling air flow: 15L / min; sample lifting volume: 1.5mL / min; integration time: 5s; element analysis line: aluminum 394.40nm; internal standard analysis line: yttrium 371.03nm.

[0069] Using PE OPTIMA5300 Inductively Coupled Plasma Emission Spectrometer, the working conditions and analysis lines of the instrument are as follows: incident power: 1300W; reflected power: <10W; cooling air flow: 15L / min; sample lifting volume: 1.5mL / min; integration time: 1~5s; element analysis line: aluminum 394.40nm; internal standard analysis line: yttrium 371.03nm.

[0070] The TJA IRIS inductively coupled plasma emission spectrometer is used. The working conditions and analysis lines of ...

Embodiment 3

[0087] Measure the aluminum content in the GH3128 superalloy, and measure it on the following three instruments

[0088] Using JY ULTIMAIIC Inductively Coupled Plasma Emission Spectrometer, the working conditions and analysis lines of the instrument are as follows: incident power: 1050W; reflected power: <10W; cooling air flow: 15L / min; sample lifting volume: 1.5mL / min; integration time: 5s; element analysis line: aluminum 394.40nm; internal standard analysis line: yttrium 371.03nm.

[0089] Using PE OPTIMA5300 inductively coupled plasma emission spectrometer, the working conditions and analysis lines of the instrument are as follows: incident power: 1300W; reflected power: <10W; cooling air flow: 15L / min; sample lifting volume: 1.5mL / min; integration time: 1~5s; element analysis line: aluminum 394.40nm; internal standard analysis line: yttrium 371.03nm.

[0090] The TJA IRIS inductively coupled plasma emission spectrometer is used. The working conditions and analysis lines o...

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Abstract

The invention discloses a method for measuring the aluminum content of a high temperature alloy, which ensures high sample dissolution speed, high analysis accuracy and high efficiency and is simple and convenient to operate. In the method, acid-insoluble aluminum in the high temperature alloy can be effectively dissolved, so that aluminum is more completely dissolved. An analytical spectral line aluminum 394.40nm selected by the method is uninterrupted by a substrate element and coexisting elements in the high temperature alloy on each of a plurality of optical spectrum instruments. Therefore, the method is applicable to almost all inductively coupled plasma emission spectrometers, has a wide measurement range, from a lower measurement limit of 0.05 percent to an upper measurement limit of 7.5 percent, and can meet the analysis requirements of the aluminum in great majority of grades of high temperature alloys.

Description

technical field [0001] The method is a method for determining the aluminum content in high-temperature alloys, and belongs to the technical field of alloy element analysis and measurement. Background technique [0002] In the aviation industry, superalloys are important materials for aerospace, energy, transportation and chemical industries because of their excellent performance of withstanding complex stress and long-term reliable work under oxidation and gas corrosion conditions of 600°C to 1100°C. [0003] Superalloys are alloy materials with the most complex chemical composition. Superalloys can be divided into three types according to the matrix: nickel-based, iron-nickel-based and cobalt-based. The high-content coexisting elements include Al, Co, Cr, Cu, Fe, Hf, Mo, Mn, Nb, Re, Ta, Ti, W The presence of these matrix elements and coexisting elements brings difficulties in the analysis of aluminum, such as sample dissolution and spectral interference. [0004] There is...

Claims

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Application Information

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IPC IPC(8): G01N21/73
Inventor 李帆耿晓颖叶晓英赵海燏
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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