CN108426904A - It is a kind of medical treatment steel part in typical fibers tissue content quantitative analysis method - Google Patents
It is a kind of medical treatment steel part in typical fibers tissue content quantitative analysis method Download PDFInfo
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- CN108426904A CN108426904A CN201810454079.3A CN201810454079A CN108426904A CN 108426904 A CN108426904 A CN 108426904A CN 201810454079 A CN201810454079 A CN 201810454079A CN 108426904 A CN108426904 A CN 108426904A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/2202—Preparing specimens therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
- G01N2223/624—Specific applications or type of materials steel, castings
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Abstract
The present invention provides a kind of quantitative analysis methods of typical fibers tissue content in medical steel part, include the following steps：1) medical steel part steel metallographic specimen is corroded using general corrosive agent and pipeline structure of steel；2) the secondary electron imaging method acquisition step 1 of scanning electron microscope is utilized) the secondary electron image photo of treated medical steel part steel metallographic specimen typical fibers tissue；3) reference pixel for determining secondary electron image photo establishes image expression figure corresponding with fibr tissue, including provides calibration error；4) quantitative analysis that corresponding expression figure to secondary electron image photo carries out typical fibers tissue content of the image with fibr tissue is used.The present invention makes fibr tissue and matrix distinguish using reference pixel, solves the quantitative analysis method of typical fibers tissue content in medical steel part steel, easy to operate, and it is accurate to measure, and is easy to implement in production testing.
Description
Technical field
The application belongs to pipe line steel technical field of measurement of tissue, and in particular to it is a kind of medical treatment steel part in typical fibers tissue
The quantitative analysis method of content.
Background technology
Medical field steel part used at present is more and more, is generally adopted by Hi-grade steel steel, produces this steel
When blank material, the composition design and TMCP rolling mill practices of low-carbon and low-alloy, this manufacturing process is generally used to lead to the in the wrong strong of steel
Increase than the raising with grade of steel, higher yield tensile ratio will reduce the survivability of pipeline, therefore the yield tensile ratio one of pipe line steel
As control below 0.95.Fibr tissue state has direct influence to yield tensile ratio in pipe line steel, and in medical instrument, especially
Medical apparatus in the operations such as orthopaedics (has steel plate, has ball collar on steel plate, the spherical shape that can place ball collar is provided on steel plate
The inner wall in hole, spherical pore is equipped with interior frictional groove, and the outer wall of ball collar is equipped with the external friction slot to match with interior frictional groove, fixed
Position pin is riveted with steel plate, and structure is more complicated, and steel using amount and structure are increasingly complex) requirement to yield tensile ratio is more stringent, therefore grinds
Study carefully in medical steel part that typical fibers tissue content produces medical instrument steel and application is of great significance, but currently without compared with
Good measurement method can accurately detect fibr tissue content, and lerepa reagent etch condition is harsh, operating difficulties, it is difficult to
Corrode and fibr tissue, and timing error of uniting is larger.
Invention content
It is an object of the invention to solve the above technical problem, provides typical fibers tissue in a kind of medical steel part and contain
The quantitative analysis method of amount.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions：
The quantitative analysis method of typical fibers tissue content, includes the following steps in medical steel part：
1) medical steel part steel metallographic specimen is corroded using general corrosive agent and pipeline structure of steel；
2) the secondary electron imaging method acquisition step 1 of scanning electron microscope is utilized) treated medical steel part steel metallographic
The secondary electron image photo of sample typical fibers tissue；
3) reference pixel for determining secondary electron image photo establishes image expression figure corresponding with fibr tissue, including
Calibration error is provided；
4) image is used to carry out typical fibers group to secondary electron image photo to corresponding expression figure with fibr tissue
Knit the quantitative analysis of content.
Preferably, medical steel part steel metallographic specimen is prepared using the method for mechanical lapping polishing in the step 1).
Preferably, when carrying out medical steel part and being prepared with steel metallographic specimen, successively with No. 600, No. 800, No. 1000 with
And No. 1200 waterproof abrasive papers grind measuring surface step by step, when the left cut of current one of sand paper grinding does not observe completely, change
Continue to grind with thin No.1 sand paper, after carrying out grinding step by step with the measuring surface of steel metallographic specimen to medical steel part, with 1-1.5 μm
Granularity polishing fluid is processed by shot blasting, is corroded with the nital of 3%-4% after drying, etching time 20-40
Second.
Preferably, in the step 2), scanning electron microscope is in acquisition step 1) treated, and medical steel part is tried with steel metallographic
When the secondary electron image photo of sample typical fibers tissue, image capture position is amplified at 1/8th of thickness of sample
Multiple is 2000-6000 times.
Preferably, determine that the reference pixel of secondary electron image photo includes described in the step 3)：According in medical treatment
The fibr tissue of the inside at steel part edge or between internal medical steel part edge and external medical steel part edge
Fibr tissue is analyzed to determine the reference pixel of the secondary electron image photo, wherein internal medical treatment steel part edge uses
Phase equalization is initially determined that by the threshold value of medical steel part image statistics foundation, once reference pixel is found, image
It can be quantized by self calibration and then.
Preferably, the reference pixel selection course includes：
3-1) generate the three-dimensional histogram of typical fibers tissue in image；
3-2) gap of the detection between two peak values of histogram；
3-3) interstitial site corresponds to internal medical steel part edge, and inside medical treatment steel part edge is searched for establishing
The gap is detected in the place of rope reference pixel using phase equalization or by threshold value, and the threshold value is by checking the figure
It is calculated as statistical value.
Preferably, described image statistical value includes minimum and maximum pixel value, average pixel value or median pixel value.
Preferably, image expression figure corresponding with fibr tissue is established in the step 3), including calibration error is provided, packet
It includes：Coordinate in image data, which goes out, measures pixel value, and is converted into " fibr tissue A and its thickness a ", the fiber group
Knitting tissue thickness a and the content of the typical fibers tissue has determining functional relation.
Preferably, in the step 4) when analysis, gray value is located at the bottom of first normal state gray scale peak value, gray value model
It is trapped among between 43-46.
Preferably, in the secondary electron image photo of the medical steel part steel metallographic specimen typical fibers tissue of acquisition with
Machine acquires 2-10 fibr tissue photos, then carries out the quantitative analysis of fibr tissue content respectively according to the method for step 4),
Finally obtained fibr tissue content is averaged, as the fibr tissue content of the medical treatment steel part steel metallographic specimen.
Compared with prior art, the present invention corrodes microscopic structure, profit using the common corrosive agent nitric acid alcohol of steel material
With the secondary electron imaging method acquisition step 1 of scanning electron microscope) medical steel part steel metallographic specimen typical fibers that treated
The secondary electron image photo of tissue；The reference pixel for determining secondary electron image photo establishes pair of image and fibr tissue
It should indicate to scheme, including calibration error is provided；Corresponding expression figure shines secondary electron image with fibr tissue using the image
Piece is analyzed, to obtain the quantitative analysis of typical fibers tissue content.The present invention makes fibr tissue and matrix using reference pixel
Tissue division comes, and which solve the quantitative analysis method of typical fibers tissue content in medical steel part steel, this method behaviour
Make simply, it is accurate to measure, and is easy to implement in production testing.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Description of the drawings
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.The target and feature of the present invention will be apparent from view of following description taken together with the accompanying drawings,
In attached drawing：
Fig. 1 is medical steel part steel scanning electron microscope secondary electron image picture according to the ... of the embodiment of the present invention, wherein white
Color region part is typical fibers tissue；
Fig. 2 (a) and 2 (b) are reference pixel selection schematic diagrames according to the ... of the embodiment of the present invention；
Fig. 3 is image according to the ... of the embodiment of the present invention expression figure corresponding with fibr tissue.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without making creative work, should all belong to protection of the present invention
Range.
Using the bone surgery object that steel plate is used as the quantitative analysis method of this implementation typical fibers tissue content,
Steel plate is manufactured using TMCP techniques, includes iron, silicon, manganese, chromium, titanium, nickel, molybdenum, vanadium, copper, phosphorus, silicon and carbon etc. containing element.Steel plate
The certain thickness cross section sample of upper interception, long side direction vertical rolling direction when interception, then to medical steel part steel gold
Phase sample is corroded using general corrosive agent pipeline structure of steel, and medical steel part steel is prepared using the method for mechanical lapping polishing
Metallographic specimen.When the medical steel part of progress is prepared with steel metallographic specimen, successively with No. 600, No. 800, No. 1000 and 1200
Number waterproof abrasive paper grinds measuring surface step by step, when the left cut of current one of sand paper grinding does not observe completely, uses instead thin by one
Number sand paper continues to grind, and after carrying out grinding step by step with the measuring surface of steel metallographic specimen to medical steel part, is thrown with 1-1.5 μm of granularity
Light liquid is processed by shot blasting, is corroded with the nital of 3%-4% after drying, and etching time is 20-40 seconds.
Shown in Fig. 1, the medical steel part steel metallographic after the secondary electron imaging method acquisition process of scanning electron microscope is utilized
The secondary electron image photo of sample typical fibers tissue, medical steel part of the scanning electron microscope after acquisition process are tried with steel metallographic
When the secondary electron image photo of sample typical fibers tissue, image capture position is amplified at 1/8th of thickness of sample
Multiple is 4000 times.
As shown in Fig. 2 (a), (b), the reference pixel of secondary electron image photo is determined, establish image and fibr tissue
It is corresponding to indicate figure, including calibration error is provided, determine that the reference pixel of secondary electron image photo includes：According in medical steel
The fibr tissue of the inside at product edge or the fiber between internal medical steel part edge and external medical steel part edge
Tissue is analyzed to determine the reference pixel of secondary electron image photo, wherein internal medical treatment steel part edge is consistent using phase
Property or the threshold value established by medical steel part image statistics initially determine that, once find reference pixel, image can by from
It calibrates and is then quantized.Wherein reference pixel selection course includes：1) the three-dimensional histogram of typical fibers tissue in image is generated
Figure；2) gap of the detection between two peak values of histogram；3) interstitial site corresponds to internal medical steel part edge,
Inside medical treatment steel part edge is used to establish the place of searching for reference pixel, is examined using phase equalization or by threshold value
Survey the gap, the threshold value by check described image statistical value come, including minimum and maximum pixel value, average pixel value or in
Between pixel value calculate
Fig. 3, which is shown, establishes image expression figure corresponding with fibr tissue, including provides calibration error, including：In image
Coordinate in data, which goes out, measures pixel value, and is converted into " fibr tissue A and its thickness a ", and the fibr tissue tissue is thick
The content for spending a and the typical fibers tissue has determining functional relation.
Typical fibers tissue is carried out to secondary electron image photo to corresponding expression figure with fibr tissue using the image
The quantitative analysis of content, gray value are located at the bottom of first normal state gray scale peak value, and intensity value ranges are set as 45.
The random acquisition in the secondary electron image photo of the medical steel part steel metallographic specimen typical fibers tissue of acquisition
2 fibr tissue photos, as shown in Figure 1, then carrying out quantitative point of fibr tissue content respectively according to the method for step 4)
Analysis, is finally averaged obtained fibr tissue content, the fibr tissue of the as medical treatment steel part steel metallographic specimen contains
Amount, the application are that the typical fibers tissue content that strength measures acquisition is 17%.
Compared with prior art, the present invention corrodes microscopic structure, profit using the common corrosive agent nitric acid alcohol of steel material
With the secondary electron imaging method acquisition step 1 of scanning electron microscope) medical steel part steel metallographic specimen typical fibers that treated
The secondary electron image photo of tissue；The reference pixel for determining secondary electron image photo establishes pair of image and fibr tissue
It should indicate to scheme, including calibration error is provided；Corresponding expression figure shines secondary electron image with fibr tissue using the image
Piece is analyzed, to obtain the quantitative analysis of typical fibers tissue content.The present invention makes fibr tissue and matrix using reference pixel
Tissue division comes, and which solve the quantitative analysis method of typical fibers tissue content in medical steel part steel, this method behaviour
Make simply, it is accurate to measure, and is easy to implement in production testing.
It, will not be by these embodiments although the present invention is described by reference to specific illustrative embodiment
Restriction and only limited by accessory claim.It should be understood by those skilled in the art that can be without departing from the present invention's
The embodiment of the present invention can be modified and be changed in the case of protection domain and spirit.
Claims (10)
1. the quantitative analysis method of typical fibers tissue content in a kind of medical treatment steel part, it is characterised in that include the following steps：
1) medical steel part steel metallographic specimen is corroded using general corrosive agent and pipeline structure of steel；
2) the secondary electron imaging method acquisition step 1 of scanning electron microscope is utilized) treated medical steel part steel metallographic specimen
The secondary electron image photo of typical fibers tissue；
3) reference pixel for determining secondary electron image photo is established image expression figure corresponding with fibr tissue, including is provided
Calibration error；
4) it uses the image to carry out typical fibers tissue to secondary electron image photo to corresponding expression figure with fibr tissue to contain
The quantitative analysis of amount.
2. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 1
Sign is：Medical steel part steel metallographic specimen is prepared using the method for mechanical lapping polishing in the step 1).
3. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 2
Sign is：When the medical steel part of progress is prepared with steel metallographic specimen, successively with No. 600, No. 800, No. 1000 and No. 1200
Waterproof abrasive paper grinds measuring surface step by step, when the left cut of current one of sand paper grinding does not observe completely, uses thin No.1 instead
Sand paper continues to grind, and after carrying out grinding step by step with the measuring surface of steel metallographic specimen to medical steel part, is polished with 1-1.5 μm of granularity
Liquid is processed by shot blasting, is corroded with the nital of 3%-4% after drying, and etching time is 20-40 seconds.
4. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 1
Sign is：In the step 2), scanning electron microscope is in acquisition step 1) treated, and medical steel part is typical fine with steel metallographic specimen
When the secondary electron image photo of dimensional tissue, image capture position is at 1/8th of thickness of sample, and amplification factor is
2000-6000 times.
5. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 1
Sign is：Determine that the reference pixel of secondary electron image photo includes described in the step 3)：According on medical steel part side
The fibr tissue of the inside of edge or the fibr tissue between internal medical steel part edge and external medical steel part edge
Analysis determine the reference pixel of the secondary electron image photo, wherein internal medical treatment steel part edge is consistent using phase
Property or the threshold value established by medical steel part image statistics initially determine that, once find reference pixel, image can by from
It calibrates and is then quantized.
6. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 5
Sign is that the reference pixel selection course includes：
3-1) generate the three-dimensional histogram of typical fibers tissue in image；
3-2) gap of the detection between two peak values of histogram；
3-3) interstitial site corresponds to internal medical steel part edge, and inside medical treatment steel part edge is for establishing search ginseng
The gap is detected in the place for examining pixel using phase equalization or by threshold value, and the threshold value is by checking that described image is united
Evaluation calculates.
7. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 6
Sign is：Described image statistical value includes minimum and maximum pixel value, average pixel value or median pixel value.
8. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 1
Sign is：Image expression figure corresponding with fibr tissue is established in the step 3), including calibration error is provided, including：Scheming
Pixel value is measured as the coordinate in data goes out, and is converted into " fibr tissue A and its thickness a ", the fibr tissue tissue
Thickness a and the content of the typical fibers tissue have determining functional relation.
9. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 1
Sign is：In the step 4) when analysis, gray value is located at the bottom of first normal state gray scale peak value, and intensity value ranges are in 43-
Between 46.
10. the quantitative analysis method of typical fibers tissue content, special in a kind of medical steel part according to claim 1
Sign is：The random acquisition 2- in the secondary electron image photo of the medical steel part steel metallographic specimen typical fibers tissue of acquisition
10 fibr tissue photos, then carry out the quantitative analysis of fibr tissue content respectively according to the method for step 4), finally to obtaining
To fibr tissue content be averaged, the as fibr tissue content of the medical treatment steel part steel metallographic specimen.
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|---|---|---|---|---|
| CN101871118A (en) * | 2010-06-30 | 2010-10-27 | 四川大学 | Method for preparing titanium dioxide layer with multi-level pore structure on surface of medicinal titanium |
| CN102890027A (en) * | 2012-09-29 | 2013-01-23 | 攀钢集团攀枝花钢铁研究院有限公司 | Metallographic structure display method of interstitial free (IF) steel cold-rolled sheet containing titanium (Ti) |
| CN103123329A (en) * | 2012-12-31 | 2013-05-29 | 上海大学 | Rapid detection method and rapid detection device of non-metallic inclusions in metal |
| CN104374789A (en) * | 2014-10-24 | 2015-02-25 | 中国石油天然气集团公司 | Quantitative analysis method for content of martensite-austenite island structures in high-strength microalloy pipeline steel |
-
2018
- 2018-05-14 CN CN201810454079.3A patent/CN108426904A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871118A (en) * | 2010-06-30 | 2010-10-27 | 四川大学 | Method for preparing titanium dioxide layer with multi-level pore structure on surface of medicinal titanium |
| CN102890027A (en) * | 2012-09-29 | 2013-01-23 | 攀钢集团攀枝花钢铁研究院有限公司 | Metallographic structure display method of interstitial free (IF) steel cold-rolled sheet containing titanium (Ti) |
| CN103123329A (en) * | 2012-12-31 | 2013-05-29 | 上海大学 | Rapid detection method and rapid detection device of non-metallic inclusions in metal |
| CN104374789A (en) * | 2014-10-24 | 2015-02-25 | 中国石油天然气集团公司 | Quantitative analysis method for content of martensite-austenite island structures in high-strength microalloy pipeline steel |
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Application publication date: 20180821 |