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Analysis method for determining titanium, vanadium, tungsten, manganese and silicon in K25 chromium-base high temperature alloy

A technology of superalloy, titanium vanadium, applied in the field of alloy constant element analysis, can solve the problems of incomplete dissolution, long analysis period, long time for dissolving samples, etc.

Active Publication Date: 2014-02-26
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Description
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AI Technical Summary

Problems solved by technology

Corresponding analysis methods can be found for different alloy grades. Regarding the analysis of titanium, vanadium, tungsten, manganese, and silicon in K25 chromium-based superalloys, there is currently no accurate analysis method for this alloy at home and abroad. Basically, nickel-based, For iron-based superalloy or other alloy methods, there are disadvantages such as long time to dissolve the sample, incomplete dissolution, uncertain selection of analysis line, etc., resulting in a long analysis cycle.

Method used

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  • Analysis method for determining titanium, vanadium, tungsten, manganese and silicon in K25 chromium-base high temperature alloy
  • Analysis method for determining titanium, vanadium, tungsten, manganese and silicon in K25 chromium-base high temperature alloy
  • Analysis method for determining titanium, vanadium, tungsten, manganese and silicon in K25 chromium-base high temperature alloy

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Experimental program
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Effect test

Embodiment 1

[0072] To measure the content of titanium, vanadium, tungsten, manganese and silicon in K25 chromium-based superalloy, an inductively coupled plasma emission spectrometer is used. The working conditions and analysis lines of the instrument are as follows: high frequency frequency: 40.68MHz; incident power: 0.95~1.1Kw ;Reflected power: <15W; Cooling air flow: 12~20L / min; Sheath air flow: 0.1~0.6L / min; Sample lift: 1.0~1.5ml / min; Integration time: 1~10s; : Titanium 334.941nm; Vanadium 292.402nm; Tungsten 207.911nm; Manganese 257.610nm; Silicon 288.158nm or 251.611nm;

[0073] (1) The reagents used in the determination process are as follows:

[0074] (1.1) Hydrochloric acid, ρ1.19g / mL; superior grade;

[0075] (1.2) Nitric acid, ρ1.42g / mL; superior grade;

[0076] (1.3) Sulfuric acid, ρ1.84g / mL; superior grade;

[0077] (1.4) Hydrofluoric acid, ρ1.15g / mL, superior grade;

[0078] (1.5) sulfuric acid, 1+1;

[0079] (1.6) Nitric acid, 1+1;

[0080] (1.7) Ammonium sulfate: so...

Embodiment 2

[0120] To measure the content of titanium, vanadium, tungsten, manganese and silicon in K25 chromium-based superalloy, an inductively coupled plasma emission spectrometer is used. The working conditions and analysis lines of the instrument are as follows: high frequency frequency: 40.68MHz; incident power: 0.95~1.1Kw ;Reflected power: <15W; Cooling air flow: 12~20L / min; Sheath air flow: 0.1~0.6L / min; Sample lift: 1.0~1.5ml / min; Integration time: 1~10s; : Titanium 334.941nm; Vanadium 292.402nm; Tungsten 207.911nm; Manganese 257.610nm; Silicon 288.158nm or 251.611nm;

[0121] (1) The reagents used in the determination process are as follows:

[0122] (1.1) Hydrochloric acid, ρ1.19g / mL; superior grade;

[0123] (1.2) Nitric acid, ρ1.42g / mL; superior grade;

[0124] (1.3) Sulfuric acid, ρ1.84g / mL; superior grade;

[0125] (1.4) Hydrofluoric acid, ρ1.15g / mL, superior grade;

[0126] (1.5) sulfuric acid, 1+1;

[0127] (1.6) Nitric acid, 1+1;

[0128] (1.7) Ammonium sulfate: so...

Embodiment 3

[0162] To measure the content of titanium, vanadium, tungsten, manganese and silicon in K25 chromium-based superalloy, an inductively coupled plasma emission spectrometer is used. The working conditions and analysis lines of the instrument are as follows: high frequency frequency: 40.68MHz; incident power: 0.95~1.1Kw ;Reflected power: <15W; Cooling air flow: 12~20L / min; Sheath air flow: 0.1~0.6L / min; Sample lift: 1.0~1.5ml / min; Integration time: 1~10s; : Titanium 334.941nm; Vanadium 292.402nm; Tungsten 207.911nm; Manganese 257.610nm; Silicon 288.158nm or 251.611nm;

[0163] (1) The reagents used in the determination process are as follows:

[0164] (1.1) Hydrochloric acid, ρ1.19g / mL; superior grade;

[0165] (1.2) Nitric acid, ρ1.42g / mL; superior grade;

[0166] (1.3) Sulfuric acid, ρ1.84g / mL; superior grade;

[0167] (1.4) Hydrofluoric acid, ρ1.15g / mL, superior grade;

[0168] (1.5) sulfuric acid, 1+1;

[0169] (1.6) Nitric acid, 1+1;

[0170] (1.7) Ammonium sulfate: so...

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Abstract

The invention belongs to the new material alloy element analysis technology, and relates to an analysis method for determining titanium, vanadium, tungsten, manganese and silicon in a K25 chromium-base high temperature alloy. The analysis steps comprise: weighing a sample; preparing a sample solution; preparing a calibration solution; measuring concentrations of titanium, vanadium, tungsten, manganese and silicon in the sample solution; and calculating the measurement result to obtain contents of titanium, vanadium, tungsten, manganese and silicon. According to the present invention, the ICP-AES method for determining contents of titanium, vanadium, tungsten, manganese and silicon in the K25 chromium-base high temperature alloy is provided, wherein the method has characteristics of high analysis sensitivity, simple operation, short analysis period, high efficiency and wide application prospect, can meet engineering application of the high temperature alloy, can meet requirements of scientific research and production on material quality control, and further has characteristics of product scrap rate reduction, development saving and production cost saving.

Description

technical field [0001] The invention belongs to alloy constant element analysis technology, and relates to an analysis method for determining titanium, vanadium, tungsten, manganese and silicon in K25 chromium-based superalloy. Background technique [0002] With the development of the national defense industry, new materials are constantly introduced, and the requirements for the composition of various materials with excellent performance are becoming more and more stringent. The content of alloying elements has a very important influence on the performance of materials. Literature research found that the detection methods of titanium, vanadium, tungsten, manganese, and silicon in superalloys mainly include inductively coupled plasma emission spectrometry, atomic absorption method and chemical method, all of which are aimed at titanium, Detection method of vanadium, tungsten, manganese and silicon. No composition analysis method directly aimed at chromium-based superalloys ...

Claims

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Application Information

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IPC IPC(8): G01N21/73
Inventor 冯艳秋叶晓英孙涛杨春晟
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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