CN109556541A - A kind of metal surface alloying layer thickness non-destructive testing device and method based on X-ray - Google Patents
A kind of metal surface alloying layer thickness non-destructive testing device and method based on X-ray Download PDFInfo
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- CN109556541A CN109556541A CN201910033244.2A CN201910033244A CN109556541A CN 109556541 A CN109556541 A CN 109556541A CN 201910033244 A CN201910033244 A CN 201910033244A CN 109556541 A CN109556541 A CN 109556541A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
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Abstract
The present invention provides a kind of metal surface alloying layer thickness non-destructive testing device and method based on X-ray, and device includes X-ray emitter, X-ray detector, amplifier, data processing memory module and display；Method makes the exemplar with different alloying layer thicknesses first, the infiltration layer constituent content of exemplar is calculated using device, and accurately measured exemplar alloying layer thickness by scanning electron microscope mode, establishes infiltration layer constituent content and alloying layer thickness corresponding data table；Secondly test block infiltration layer constituent content to be checked is obtained using device, interpolation resolves to obtain test block alloying layer thickness to be checked in the infiltration layer constituent content and alloying layer thickness corresponding data table demarcated in advance.The present invention can quickly detect the alloying layer thickness for obtaining Diffusional aluminizing layer, it can be achieved that product full inspection, greatly improved working efficiency compared to existing infiltration layer detecting method in the case where not destroying test specimen.
Description
Technical field
The invention belongs to surface engineering technology and precise detection technology field, specially a kind of metal surface based on X-ray
Alloying layer thickness non-destructive testing device and method it is other can to detect its surface under conditions of not destroying metal parts to be detected
The alloying layer thickness of metallic element.
Background technique
Nickel base superalloy is easy to be corroded by high-temperature fuel gas among the process used, only leans on contained by material itself
Cr element is difficult to resist external environment influence, therefore generallys use aluminising processing in engineering and protect to it.Due to current
Solid powder investment is widely used and gas phase diffusion method carries out aluminising, aluminising depth is by temperature, time, aluminizing medium shadow
It rings.As high-temperature alloy surface aluminising processing important indicator, aluminising Thickness sensitivity be high temperature alloy aluminising processing emphasis with
And difficult point, experience is relied on to most of control of its surface thickness.When certain positions carry out local aluminising, it is easy do not answering aluminising
Position generate accidentally seep phenomenon, cause brittlement phase to be assembled, additionally due to aluminized coating is blocked up to will lead to contact site mistake between component
It is full of cooperation, unstable wear leads to accidentally to seep position being easy to happen fracture defect.
At present mainly by scanning electron microscope observation thickness, time-consuming for this method, and measurement cost is higher, can only carry out to part
Damage type sampling check, can not be applied to all blades.
And existing non-destructive detecting device can only judge the presence or absence of aluminized coating, be not possible to carry out to aluminized coating Thickness sensitivity.
Traditional contactless technique be for example vortexed thickness measuring method can only testing conductive matrix surface non-conductive layer thickness, magnetic survey thickness method needle
The matrix and coating material differ greatly to two kinds of magnetic flux rates detects.However Superalloy aluminium technique is to pass through heat
Diffusion principle makes the aluminium atom after activation penetrate into matrix, different in different depth its diffusion rate, and aluminized coating and body it
Between without apparent physical interface, atom mutually mixes in very big region, new NiAl phase is formed, so that infiltration layer and matrix
Between electric conductivity and magnetic conductivity without obvious gap, it can not effectively be detected by existing non-destructive testing means.
Summary of the invention
To solve the problems, such as existing metal alloying layer thickness detection, it is ensured that the security reliability that component uses, the present invention provide
A kind of metal surface alloying layer thickness non-destructive testing device and method based on X-ray realizes the lossless full inspection of component alloying layer thickness.
The technical solution of the present invention is as follows:
The metal surface alloying layer thickness non-destructive testing device based on X-ray, it is characterised in that: occur including X-ray
Device, X-ray detector, amplifier, data processing memory module and display；
The X-ray emitter can issue X-ray and get to surface of test piece to be detected, be acquired by X-ray detector to be checked
The X-ray of test block surface reflection, X-ray detector output detection signal are transferred to data processing storage mould after amplifier
Block, data processing memory module will test result and show in the display；
The infiltration layer constituent content number corresponding with alloying layer thickness demarcated in advance is stored in the data processing memory module
According to table；Test block infiltration layer member to be checked can be calculated in the data processing memory module according to the detection signal that amplifier inputs
Cellulose content, and interpolation resolves to obtain test to be checked in the infiltration layer constituent content and alloying layer thickness corresponding data table demarcated in advance
Part alloying layer thickness.
Further preferred embodiment, a kind of metal surface alloying layer thickness non-destructive testing device based on X-ray are special
Sign is: the metal is nickel base superalloy, and the material of the infiltration layer is aluminium.
The method of the metal surface alloying layer thickness non-destructive testing based on X-ray is carried out using above-mentioned apparatus, it is characterised in that:
Using following steps:
Step 1: making the exemplar with different alloying layer thicknesses, and exemplar alloying layer thickness range covers the infiltration of test block to be checked
Layer design thickness；
Step 2: X-ray being issued using X-ray emitter and gets to sample surface, sample surface is acquired by X-ray detector
The X-ray of reflection, X-ray detector output detection signal is transferred to data processing memory module after amplifier, at data
The infiltration layer constituent content of exemplar is calculated in the detection signal that reason memory module is inputted according to amplifier；
Step 3: exact thickness observation being carried out to exemplar using scanning electron microscope, and according to the infiltration layer constituent content of not same piece
With exact thickness, infiltration layer constituent content and alloying layer thickness corresponding data table are established, and is stored in data processing memory module；
Step 4: using X-ray emitter issue X-ray get to surface of test piece to be detected, by X-ray detector acquisition to
The X-ray of surface of test piece reflection is detected, X-ray detector output detection signal is transferred to data processing storage after amplifier
Test block infiltration layer constituent content to be checked is calculated in module, the detection signal that data processing memory module is inputted according to amplifier,
And interpolation resolves to obtain test block infiltration layer to be checked in the infiltration layer constituent content and alloying layer thickness corresponding data table demarcated in advance
Thickness；Testing result is shown in the display.
Further preferred embodiment, a kind of method of the metal surface alloying layer thickness non-destructive testing based on X-ray,
Be characterized in that: the metal is nickel base superalloy, and the material of the infiltration layer is aluminium.
Beneficial effect
Lossless detection method proposed by the present invention can be the case where not destroying test specimen compared to existing infiltration layer detecting method
Lower quickly detection obtains the alloying layer thickness of Diffusional aluminizing layer, it can be achieved that product full inspection, greatly improved working efficiency.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Metal surface alloying layer thickness non-destructive testing device structural schematic diagram of the Fig. 1 based on X-ray
1, X-ray emitter；2, X-ray detector；3, amplifier；4, data processing memory module；5, display；6, to
Detect test specimen.
Specific embodiment
The embodiment of the present invention is described below in detail, the embodiment is exemplary, it is intended to it is used to explain the present invention, and
It is not considered as limiting the invention.
Shock generation secondary X-ray is carried out to by sample using X-ray, is produced after being excited by different elements
Raw secondary x rays have different energy and wavelength characteristic, according to Moseley lawWherein
Q and δ is constant, it is possible to which the X-fluorescence photon by acquiring different wave length qualitatively or quantitatively divides a certain element
Analysis.
Based on the above principles, having more X-ray detecting equipment at present can be received not by the detector of certain area
With element under X-ray impact generated secondary X-ray photon, and then obtain wherein each constituent content, and to single plating
Layer, can also measure thickness of coating.And for Diffusional aluminizing layer, since it has bigger difference, current equipment between coating
It can not directly measure to obtain alloying layer thickness.
For this purpose, the invention proposes a kind of metal surface alloying layer thickness non-destructive testing device and method based on X-ray, is adopted
Establish infiltration layer constituent content and alloying layer thickness relational database with sample, so the method by comparing interpolation be calculated it is to be measured
The alloying layer thickness of test specimen.
Using aluminising nickel base superalloy blade as test object in the present embodiment, the metal surface infiltration layer based on X-ray is thick
Degree non-destructive testing device include as shown in Figure 1: X-ray emitter, X-ray detector, amplifier, data processing memory module and
Display.
The X-ray emitter can issue X-ray and get to surface of test piece to be detected, be acquired by X-ray detector to be checked
The X-ray of test block surface reflection, X-ray detector output detection signal are transferred to data processing storage mould after amplifier
Block is stored with the infiltration layer constituent content and alloying layer thickness corresponding data table demarcate in advance in the data processing memory module；
The data processing memory module can be calculated test block infiltration layer element to be checked according to the detection signal that amplifier inputs and contain
Amount, and interpolation resolves to obtain test block infiltration to be checked in the infiltration layer constituent content and alloying layer thickness corresponding data table demarcated in advance
Thickness degree；Data processing memory module will test result and show in the display.
The method of the metal surface alloying layer thickness non-destructive testing based on X-ray is carried out using above-mentioned apparatus using following step
It is rapid:
Step 1: by controlling the aluminising time, making the nickel base superalloy exemplar with different aluminising thickness, and exemplar
Aluminising thickness range covers the aluminising design thickness of nickel base superalloy blade to be detected；
Step 2: X-ray being issued using X-ray emitter and gets to sample surface, sample surface is acquired by X-ray detector
The X-ray of reflection, X-ray detector output detection signal is transferred to data processing memory module after amplifier, at data
The aluminising constituent content of each nickel base superalloy exemplar is calculated in the detection signal that reason memory module is inputted according to amplifier；
Step 3: each nickel base superalloy exemplar being cut, accurate aluminising is carried out to exemplar using scanning electron microscope after polishing
Thickness observation, and according to the aluminium element content of not same piece and accurate aluminising thickness, establish aluminium element content and aluminising thickness pair
Tables of data is answered, and is stored in data processing memory module；
Step 4: using X-ray emitter issue X-ray get to surface of test piece to be detected, by X-ray detector acquisition to
The X-ray of surface of test piece reflection is detected, X-ray detector output detection signal is transferred to data processing storage after amplifier
Test block aluminium element content to be checked is calculated in module, the detection signal that data processing memory module is inputted according to amplifier, and
Interpolation resolves to obtain test block aluminising thickness to be checked in the aluminium element content and aluminising thickness corresponding data table demarcated in advance；
Testing result is shown in the display.
Detection method provided by the invention and device can be quick to the nickel base superalloy crop leaf measuring to carry out large repairs
Sorted out blade position aluminized coating whether He Ge blade, inspected by random samples through metallographic method, infiltration layer detection method provided by the invention and
The testing result of device is all correct.The aluminising again of whole blades is avoided, a large amount of costs of repairs are saved.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (4)
1. a kind of metal surface alloying layer thickness non-destructive testing device based on X-ray, it is characterised in that: including X-ray emitter,
X-ray detector, amplifier, data processing memory module and display；
The X-ray emitter can issue X-ray and get to surface of test piece to be detected, acquire test to be checked by X-ray detector
The X-ray of part surface reflection, X-ray detector output detection signal are transferred to data processing memory module after amplifier,
Data processing memory module will test result and show in the display；
The infiltration layer constituent content and alloying layer thickness corresponding data table demarcated in advance are stored in the data processing memory module；
The data processing memory module can be calculated test block infiltration layer element to be checked according to the detection signal that amplifier inputs and contain
Amount, and interpolation resolves to obtain test block infiltration to be checked in the infiltration layer constituent content and alloying layer thickness corresponding data table demarcated in advance
Thickness degree.
2. a kind of metal surface alloying layer thickness non-destructive testing device based on X-ray, feature exist according to claim 1
In: the metal is nickel base superalloy, and the material of the infiltration layer is aluminium.
3. the method for carrying out the metal surface alloying layer thickness non-destructive testing based on X-ray using claim 1 described device, special
Sign is: use following steps:
Step 1: making the exemplar with different alloying layer thicknesses, and exemplar alloying layer thickness range covers the infiltration layer of test block to be checked and sets
Count thickness；
Step 2: X-ray being issued using X-ray emitter and gets to sample surface, by X-ray detector acquisition sample surface reflection
X-ray, X-ray detector output detection signal data processing memory module is transferred to after amplifier, data processing is deposited
The infiltration layer constituent content of exemplar is calculated in the detection signal that storage module is inputted according to amplifier；
Step 3: exact thickness observation being carried out to exemplar using scanning electron microscope, and according to the infiltration layer constituent content of not same piece and standard
True thickness is established infiltration layer constituent content and alloying layer thickness corresponding data table, and is stored in data processing memory module；
Step 4: X-ray being issued using X-ray emitter and gets to surface of test piece to be detected, is acquired by X-ray detector to be detected
The X-ray of surface of test piece reflection, X-ray detector output detection signal are transferred to data processing storage mould after amplifier
Test block infiltration layer constituent content to be checked is calculated in block, the detection signal that data processing memory module is inputted according to amplifier, and
Interpolation resolves to obtain test block infiltration layer thickness to be checked in the infiltration layer constituent content and alloying layer thickness corresponding data table demarcated in advance
Degree；Testing result is shown in the display.
4. a kind of method of the metal surface alloying layer thickness non-destructive testing based on X-ray, feature exist according to claim 3
In: the metal is nickel base superalloy, and the material of the infiltration layer is aluminium.
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| CN110132188A (en) * | 2019-06-19 | 2019-08-16 | 中国人民解放军空军工程大学 | A kind of painting alloying layer thickness calculation method based on multielement X-ray characteristic spectrum comprehensive analysis |
| CN110345889A (en) * | 2019-08-30 | 2019-10-18 | 郑州大学 | A method of utilizing energy spectrum analysis non-destructive testing sample film thickness |
| CN111578852A (en) * | 2020-05-25 | 2020-08-25 | 西安奕斯伟硅片技术有限公司 | Epitaxial wafer thickness measuring method and system |
| CN115466953A (en) * | 2022-10-11 | 2022-12-13 | 郑煤机智鼎液压有限公司 | Laser cladding layer thickness detection method |
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| CN115466953A (en) * | 2022-10-11 | 2022-12-13 | 郑煤机智鼎液压有限公司 | Laser cladding layer thickness detection method |
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Inventor after: Wang Cheng Inventor after: An Zhibin Inventor after: He Jiabang Inventor after: Zhou Ruixiang Inventor after: Gui Min Inventor before: Wang Cheng Inventor before: An Zhibin Inventor before: He Jiabang Inventor before: Zhou Ruixiang |
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