CN111413360A - In-situ stress corrosion test device for X-ray microscope - Google Patents
In-situ stress corrosion test device for X-ray microscope Download PDFInfo
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- CN111413360A CN111413360A CN202010438717.XA CN202010438717A CN111413360A CN 111413360 A CN111413360 A CN 111413360A CN 202010438717 A CN202010438717 A CN 202010438717A CN 111413360 A CN111413360 A CN 111413360A
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- 230000007797 corrosion Effects 0.000 title claims abstract description 37
- 238000005260 corrosion Methods 0.000 title claims abstract description 37
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012613 in situ experiment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003963 x-ray microscopy Methods 0.000 description 1
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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
- G01N23/225—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 using electron or ion
- G01N23/2251—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 using electron or ion using incident electron beams, e.g. scanning electron microscopy [SEM]
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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
- G01N23/2204—Specimen supports therefor; Sample conveying means therefore
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0244—Tests performed "in situ" or after "in situ" use
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention provides an in-situ stress corrosion test device for an X-ray microscope, which comprises a tension device and a corrosive liquid container, wherein the tension device is placed in the corrosive liquid container; the tension device comprises a motor, an upper support, a base, a loading screw rod and a tension frame, an output shaft of the motor is connected with the loading screw rod, the loading screw rod is fixedly connected with the tension frame, an upper clamp is fixed at the bottom of the tension frame, and a lower clamp is integrally formed on the upper surface of the base. According to the invention, through the matching of the loading screw rod, the tension frame and the upper and lower clamps, the tension loaded on the sample to be tested can be continuously adjusted, meanwhile, through the matching of the pressure sensor and the motor, the actual load on the sample to be tested is equal to the preset target load, and the device has a small volume and meets the use requirement of the X-ray microscope.
Description
Technical Field
The invention relates to stress corrosion test equipment, in particular to an in-situ stress corrosion test device for an X-ray microscope.
Background
Stress corrosion refers to the corrosion acceleration behavior of a material under the combined action of tensile stress and a corrosion medium, and accidents caused by the stress corrosion are usually not predicted in advance, so that disastrous results such as chemical equipment explosion, oil field pipeline breakage and the like can be caused. Although researchers have conducted extensive research into the behavior of stress corrosion of materials, there are many problems to be clarified regarding the mechanism and process of stress corrosion of different materials.
X-ray microscopy is an emerging material analysis testing technique that can perform non-destructive analysis of the internal structure and crystal orientation distribution of a material through absorption and diffraction of X-rays by the material. Through the development of some in-situ experiment accessories, the service behavior of the material under the environment action can be researched in situ in real time by using an X-ray microscope, the characteristics of the material can be more accurately understood and known, and more bases are provided for the reasonable use of the material and the development of new materials. There is no commercial X-ray microscope attachment available to perform in situ stress corrosion studies.
Due to the limitation of the power of the X-ray source of the X-ray microscope, the distance between the X-ray source and the detector is short, and the space for placing accessories is limited. Meanwhile, in order to obtain a high signal-to-noise ratio and improve the definition and resolution of an imaging effect, the distance between the X-ray source and the detector is required to be as close as possible. Miniaturization is an important requirement and key technical feature of an X-ray microscope in-situ stress corrosion device. The invention provides a small in-situ stress corrosion research device which can be used for an X-ray microscope.
Disclosure of Invention
In order to overcome the defects of the conventional in-situ stress corrosion equipment, the invention provides an in-situ stress corrosion test device for an X-ray microscope.
The technical solution for realizing the purpose of the invention is as follows:
an in-situ stress corrosion test device for an X-ray microscope comprises a tension device and a corrosive liquid container, wherein the tension device is placed in the corrosive liquid container, and corrosive solution is filled in the corrosive liquid container; the tension device comprises a motor, an upper bracket, a base, a loading screw rod and a tension frame, wherein the upper bracket comprises a top panel, a bottom panel and a back panel, and the top panel and the bottom panel are fixedly connected through the back panel; the motor is arranged above the top panel, a speed reducer is arranged on an output shaft of the motor, the output shaft of the motor is connected with the loading screw rod through a coupler, the loading screw rod penetrates through the top panel and extends into the bottom panel, the loading screw rod can rotate along the axis and move along the axial direction, and the bottom panel and the base are connected through a supporting cylinder to form a cavity; the loading screw rod is fixedly connected with the tension frame, the tension frame moves along the axial direction along with the loading screw rod, the tension frame penetrates through the bottom panel and extends into the cavity, an upper clamp is fixed at the bottom of the tension frame, a first clamping groove used for clamping a sample to be tested is formed in the lower surface of the upper clamp, a lower clamp is integrally formed on the upper surface of the base, a second clamping groove used for clamping the sample to be tested is formed in the upper surface of the lower clamp, and the second clamping groove is vertically opposite to the first clamping groove.
Furthermore, the in-situ stress corrosion test device for the X-ray microscope is characterized in that an upper positioning sliding bearing and a lower positioning sliding bearing are respectively arranged in the top panel and the bottom panel of the upper support and are respectively used for limiting the axial displacement of the loading screw rod.
Furthermore, the in-situ stress corrosion test device for the X-ray microscope further comprises a pressure sensor, wherein the pressure sensor is arranged between the tail end of the loading screw rod and the bottom panel of the upper bracket and is connected with the controller of the motor.
Furthermore, the in-situ stress corrosion test device for the X-ray microscope is characterized in that the supporting cylinder is made of carbon fiber, ultra-high molecular weight polyethylene or polytetrafluoroethylene and the like with low X-ray absorption rate.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
the in-situ stress corrosion test device for the X-ray microscope realizes continuous adjustment of the tension loaded on the sample to be tested through the matching of the loading screw rod, the tension frame and the upper and lower clamps, simultaneously realizes the equality of the actual load on the sample to be tested and the preset target load through the matching of the pressure sensor and the motor, has small volume, and meets the use requirement of the X-ray microscope.
Drawings
FIG. 1 is a front view of the overall structure of the in-situ stress corrosion test apparatus for an X-ray microscope according to the present invention.
FIG. 2 is a left side view of the overall structure of the in-situ stress corrosion testing apparatus for an X-ray microscope according to the present invention.
Reference signs mean: 1. the testing device comprises a motor, 2, a coupler, 3, a connecting nut, 4, an upper positioning sliding bearing, 5, a loading screw rod, 6, an upper bracket, 61, a top panel, 62, a back panel, 63, a bottom panel, 7, a lower positioning sliding bearing, 8, a pressure sensor, 9, a tension frame, 10, an upper clamp, 101, a first clamping groove, 11, a supporting cylinder, 111, a cavity, 12, a base, 121, a lower clamp, 122, a second clamping groove, 13 and a corrosive liquid container, and 14 is a sample to be tested.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
An in-situ stress corrosion test device for an X-ray microscope is shown in figures 1 and 2 and comprises a tension device and a corrosion liquid container 13, wherein the tension device is placed in the corrosion liquid container 13, and a corrosion solution is filled in the corrosion liquid container 13.
The tension device comprises a motor 1, an upper bracket 6, a base 12, a loading screw rod 5 and a tension frame 9. The upper bracket 6 comprises a top panel 61, a bottom panel 63 and a back panel 62, wherein the top panel 61 and the bottom panel 63 are fixedly connected through the back panel 62.
The bottom panel 63 and the base 12 are connected by a support tube 11 to form a cavity 111, and the support tube 11 is made of carbon fiber, ultra-high molecular weight polyethylene or polytetrafluoroethylene with low X-ray absorption rate. The loading screw 5 is fixedly connected with a tension frame 9, and the tension frame 9 moves along the axial direction along with the loading screw 5. The tensile frame 9 penetrates through the bottom panel 63 and extends into the cavity 111, an upper clamp 10 is fixed at the bottom of the tensile frame 9, a first clamping groove 101 used for clamping a sample 14 to be tested is formed in the lower surface of the upper clamp 10, a lower clamp 121 is integrally formed on the upper surface of the base 12, a second clamping groove 122 used for clamping the sample 14 to be tested is formed in the upper surface of the lower clamp 121, and the second clamping groove 122 is vertically opposite to the first clamping groove 101.
The working principle of the in-situ stress corrosion test device for the X-ray microscope is as follows:
the motor 1 is used for providing tensile force of a tensile experiment, drives the loading screw rod 5 to rotate through the coupler 2, enables the tensile force frame 9 to move upwards through spiral transmission, and then drives the upper clamp 10 to realize loading on a sample 14 to be tested. The loading screw 5 is limited in its axial displacement by an upper positioning slide bearing 4 and a lower positioning slide bearing 7, between which the loading screw 5 can rotate and move in the axial direction.
In the process of a tensile experiment, the tension frame 9 provides a reaction force with the same magnitude for the loading screw 5, and the bottom of the loading screw 5 is supported by the pressure sensor 8, so that the magnitude of the tension applied to the sample 14 to be tested is equal to the magnitude of the pressure applied to the pressure sensor 8. The loading of the motor 1 is controlled by the pressure signal fed back by the pressure sensor 8 until the actual load of the sample 14 to be measured is equal to the preset target load. The supporting cylinder 1 is a frame connecting the upper bracket 6 and the base 12, and the supporting cylinder 11 is made of carbon fiber, ultra-high molecular weight polyethylene or polytetrafluoroethylene with low X-ray absorption rate.
The tensile device is placed in the corrosive liquid container 13, then the whole test device is placed on an X-ray microanalyzer test bed, and the experimental corrosive solution is injected into the corrosive liquid container 13 in the experimental process.
The foregoing is directed to embodiments of the present invention and, more particularly, to a method and apparatus for controlling a power converter in a power converter, including a power converter, a power.
Claims (4)
1. The in-situ stress corrosion test device for the X-ray microscope is characterized by comprising a tension device and a corrosion liquid container (13), wherein the tension device is placed in the corrosion liquid container (13), and a corrosion solution is filled in the corrosion liquid container (13);
the tension device comprises a motor (1), an upper bracket (6), a base (12), a loading screw rod (5) and a tension frame (9), wherein the upper bracket (6) comprises a top panel (61), a bottom panel (63) and a back panel (62), and the top panel (61) and the bottom panel (63) are fixedly connected through the back panel (62); the motor (1) is arranged above the top panel (61), a speed reducer is arranged on an output shaft of the motor (1), the output shaft of the motor (1) is connected with the loading screw rod (5) through a coupler (2), the loading screw rod (5) penetrates through the top panel (61) and extends into the bottom panel (63), the loading screw rod (5) can rotate along the axis and move along the axial direction, and the bottom panel (63) and the base (12) are connected through a supporting cylinder (11) to form a cavity (111);
the loading screw rod (5) is fixedly connected with a tension frame (9) externally, the tension frame (9) moves along the axial direction along with the loading screw rod (5), the tension frame (9) penetrates through a bottom panel (63) and extends into the cavity (111), an upper clamp (10) is fixed at the bottom of the tension frame (9), a first clamping groove (101) used for clamping a sample (14) to be tested is formed in the lower surface of the upper clamp (10), a lower clamp (121) is integrally formed on the upper surface of the base (12), a second clamping groove (122) used for clamping the sample (14) to be tested is formed in the upper surface of the lower clamp (121), and the second clamping groove (122) is opposite to the first clamping groove (101) in the vertical direction.
2. The in-situ stress corrosion test device for an X-ray microscope according to claim 1, wherein an upper positioning sliding bearing (4) and a lower positioning sliding bearing (7) are respectively arranged in the top panel and the bottom panel of the upper bracket (6) and are respectively used for limiting the axial displacement of the loading screw rod (5).
3. The in-situ stress corrosion test device for the X-ray microscope according to claim 1, further comprising a pressure sensor (8), wherein the pressure sensor (8) is arranged between the tail end of the loading screw (5) and the bottom panel of the upper bracket (6), and the pressure sensor (8) is connected with a controller of the motor (1).
4. The in-situ stress corrosion testing apparatus for an X-ray microscope according to claim 1, wherein the supporting cylinder (11) is made of carbon fiber, ultra-high molecular weight polyethylene or polytetrafluoroethylene, which has low X-ray absorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438717.XA CN111413360A (en) | 2020-05-22 | 2020-05-22 | In-situ stress corrosion test device for X-ray microscope |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010438717.XA CN111413360A (en) | 2020-05-22 | 2020-05-22 | In-situ stress corrosion test device for X-ray microscope |
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| CN111413360A true CN111413360A (en) | 2020-07-14 |
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| CN202010438717.XA Pending CN111413360A (en) | 2020-05-22 | 2020-05-22 | In-situ stress corrosion test device for X-ray microscope |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082927A (en) * | 2020-08-06 | 2020-12-15 | 东莞材料基因高等理工研究院 | In-situ corrosion environment test device for X-ray imaging |
| CN112345563A (en) * | 2020-09-24 | 2021-02-09 | 南京工业大学 | High-temperature in-situ loading experimental device for X-ray microscope |
| CN114166651A (en) * | 2021-12-08 | 2022-03-11 | 北京科技大学 | In-service pressure-bearing equipment micro-sample high-temperature water stress corrosion test device and method |
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| CN108776151A (en) * | 2018-04-02 | 2018-11-09 | 西南交通大学 | A kind of high/low temperature original position loading device based on X-ray transmission |
| CN212059993U (en) * | 2020-05-22 | 2020-12-01 | 南京力变仪器有限公司 | In-situ stress corrosion test device for X-ray microscope |
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2020
- 2020-05-22 CN CN202010438717.XA patent/CN111413360A/en active Pending
Patent Citations (6)
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| KR200338689Y1 (en) * | 2003-10-31 | 2004-01-16 | 탑테크(주) | Device for applying tensile load in sulfide stress corrosion cracking tester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082927A (en) * | 2020-08-06 | 2020-12-15 | 东莞材料基因高等理工研究院 | In-situ corrosion environment test device for X-ray imaging |
| CN112345563A (en) * | 2020-09-24 | 2021-02-09 | 南京工业大学 | High-temperature in-situ loading experimental device for X-ray microscope |
| CN114166651A (en) * | 2021-12-08 | 2022-03-11 | 北京科技大学 | In-service pressure-bearing equipment micro-sample high-temperature water stress corrosion test device and method |
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