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A Basic Parameter Method of X-ray Fluorescence Spectroscopy for Virtual Synthetic Standard

A basic parameter, fluorescence spectrum technology, applied in the field of X-ray fluorescence spectrum detection, to achieve the effect of fast analysis

Inactive Publication Date: 2016-08-24
DALIAN UNIV OF TECH +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention solves the problem that X-ray fluorescence spectrum detection of certain material components must rely on a set of standard samples of the same material, classifies metal materials according to substrates, and proposes a detection method combining standard samples and basic parameter methods for various alloys, which can be used as The user installs these working curves and configures reliable calibration samples (5 to 7) for long-term preservation of the curves

Method used

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  • A Basic Parameter Method of X-ray Fluorescence Spectroscopy for Virtual Synthetic Standard
  • A Basic Parameter Method of X-ray Fluorescence Spectroscopy for Virtual Synthetic Standard
  • A Basic Parameter Method of X-ray Fluorescence Spectroscopy for Virtual Synthetic Standard

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Experimental program
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Effect test

Embodiment 1

[0026] Application of Iron-Based Alloys

[0027] Step 1: This embodiment selects the following standard samples:

[0028] (1) 1Cr18Ni9Ti, 7 pieces, this sleeve is used as the main sleeve, except for the base, it contains: tin, molybdenum, lead, arsenic, tungsten, copper, nickel, cobalt, manganese, arsenic, titanium, phosphorus, silicon, aluminum There are 15 elements in total.

[0029] (2) Austenitic stainless steel ST21-28 series, 8 pieces, adding elements niobium and tantalum.

[0030] (3) Nickel-chromium-molybdenum-copper stainless steel, 5 pieces, with high copper content and added elements of antimony and vanadium.

[0031] (4) GH2132 (US brand A286), 4 pieces, with high nickel content and low copper content, high titanium content and low vanadium content.

[0032] (5) GH2036 iron-based superalloy, 5 pieces, high manganese content

[0033] (6) W18Cr4V high-speed tool steel, 5 pieces, with high tungsten content.

[0034] (7) Low-alloy steel GSBH40067-93, 7 pieces, wit...

Embodiment 2

[0054] Application of nickel base alloy

[0055] Step 1: This embodiment selects the following standard samples:

[0056] (1) GH3044, 5 pieces, high tungsten solid solution strengthened alloy.

[0057] (2) DZ125, 5 pieces, directionally solidified alloy, high tungsten, tantalum, molybdenum, cobalt strengthened solid solution matrix, and contains high content of aluminum and titanium to form Ni3 (Al, Ti) (γ' phase) aging strengthening alloy.

[0058] (3) GH4169 (Inco718 alloy in the United States), 5 pieces, high niobium content, forming a Ni3Nb (γ” phase) strengthening phase, used for turbine disks, compressor disks, compressor blades, etc., is the most used alloy in aero-engines.

[0059] (4) GH4049, 5 pieces, deformed turbine blade material with high content of molybdenum, tungsten, cobalt, aluminum and titanium.

[0060] (5) N263 (China GH163), 5 pieces, solid solution strengthening alloy with high molybdenum and cobalt, combustion chamber materials.

[0061] (6) C1023 (...

Embodiment 3

[0086] Application of Copper Alloy

[0087] Step 1: This embodiment selects the following standard samples:

[0088] (1) Aluminum bronze, 9 pieces, is characterized by a wide range of aluminum, nickel, and paste elements, and there are many types of elements, including 12 elements.

[0089] (2) Silicon brass, 6 pieces, containing sulfur, antimony, bismuth elements and high content of zinc and silicon elements.

[0090] (3) Gun metal, 5 pieces, with high content of tin, lead and zinc elements, and low content of bismuth, silver and antimony.

[0091] (4) Nickel silver, 5 pieces, characterized by a high content of nickel and zinc elements, with a nickel content of 20.9%.

[0092] (5) QA110-4-4 aluminum-iron-nickel bronze, 5 pieces.

[0093] Step 2: Sample preparation: The sample is ground, and the surface is ground into a smooth plane with consistent texture. In order to avoid the interference of the abrasive on the low content of Al and Si elements in the sample preparation, ...

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Abstract

The invention relates to an X-ray fluorescence spectrum basic parameter method for virtually synthesizing standard samples, and belongs to the technical field of X-ray fluorescence spectrum detection. Combining the standard sample with the basic parameter method, selecting appropriate working conditions, performing comprehensive applications such as effective spectral line overlap correction and background subtraction, to obtain the net intensity value of each element, and then virtual synthesis of a standard sample to establish a virtual synthetic standard The basic parameter method curve made by the sample, the end user can use several standard samples to establish a general working curve for the same substrate material, to achieve accurate detection of the alloy composition of the same substrate, the analysis range is wide, the basic parameter method is not affected by the standard sample The limit of the lower limit does not need to purchase a large number of standard samples, which has great economic benefits. It can also be used for the detection of new materials, to meet the detection of new materials developed by university research institutes, and to solve the problem of no standard samples for new materials. The method has broad application prospects in the detection field of X-ray fluorescence spectrometer.

Description

technical field [0001] The invention relates to an X-ray fluorescence spectrum basic parameter method for virtually synthesizing standard samples, and belongs to the technical field of X-ray fluorescence spectrum detection. Background technique [0002] The chemical composition in the alloy is complex, and there are many elements that need to be analyzed. The use of chemical methods to analyze samples has the disadvantages of long detection cycle, large amount of manpower consumption, and high detection cost. X-ray fluorescence spectroscopy is widely used in metallurgy, ore, powder and other fields due to its advantages of fast analysis speed, high precision, good accuracy, convenient sample preparation, and non-destructive testing. However, the X-ray fluorescence spectrometry has strict requirements on the standard sample, and the effective methods in the fluorescence spectrum, such as the internal standard method, the standard addition method, the dilution method, the mixe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/223
Inventor 张环月唐侠金恒松葛新颖权义宽季守华闫秀芬孙健
Owner DALIAN UNIV OF TECH
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