CN109507100A - Corrosion electrochemistry test method and device under plate-shape metal sample high stress - Google Patents
Corrosion electrochemistry test method and device under plate-shape metal sample high stress Download PDFInfo
- Publication number
- CN109507100A CN109507100A CN201811407170.6A CN201811407170A CN109507100A CN 109507100 A CN109507100 A CN 109507100A CN 201811407170 A CN201811407170 A CN 201811407170A CN 109507100 A CN109507100 A CN 109507100A
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- electrolytic cell
- corrosion
- high stress
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
-
- 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
- G01N2203/0236—Other environments
- G01N2203/024—Corrosive
Abstract
The invention discloses electrochemical test method and devices under a kind of plate-shape metal sample high stress, are related to field of electrochemical test.The electrochemical test method is using the wide centre in both ends is narrow and both ends are provided with the plate-shape metal tensile sample of connecting hole, it is connected between tensile sample and fixture using pin type, pin is using high-intensitive silicon carbide ceramics stick, ensure that pin is able to bear high stress and the insulation between sample, plate tensile sample between insulation clamping screw and electrolytic cell etch pit by being adjacent to, and by rubber seal rings for seal waterproof, 1000MPa high stress level can be loaded onto and carry out accurate electrochemical measurement in situ.The experimental provision is made of corrosion electrolytic cell, loads fixture, plate tensile sample three parts, and the corrosion electrolytic cell includes stationary barrier and closed cylinder etchant solution pond, and etchant solution pond has multiple apertures, and temperature control, ventilation, solution circulation may be implemented.Present apparatus method is simple and easy, convenient disassembly, and electrochemical parameter measurement is accurate, can be carried out electro-chemical test under high stress level, and be able to achieve the simulation test of a variety of environmental conditions.
Description
Technical field
The present invention relates to electrochemical test method and its device more particularly to a kind of plates under a kind of metal material stress
Corrosion test and electrochemical test method and device under shape metal material high stress.
Background technique
It is compound in stress and corrosive medium to be suitable for research metal material for corrosion testing apparatus under metal material stress
Corrosion process rule under effect.And by electrochemical test method, it can effectively analyze the reaction for obtaining corrosion process
Journey and thermodynamics, dynamic law.It further, can be with by the regulation to factors such as solution system, pH value, temperature, times
Obtain stress and multifactor collective effect to the affecting laws of corrosion process.Currently, the tensile stress for metal material acts on
Lower electrochemical test experiment device is mainly placed at organic glass electrolytic cell internal cavities center using by tensile sample, makes
Solution in sample and electrolytic cell is sealed with rubber stopper, and will be insulated between sample and fixture by polytetrafluoroethylene (PTFE).But this
Presently, there are many limitations for kind test method: sample assembly need to do waterproof sealing processing, be not easy to disassembly, repeatedly measurement；Examination
Sample work area is handled using manual sealing mode, and work area is inaccurate, easy crevice corrosion, the depth of parallelism are poor；It is poly- by coating
It insulate, insulate under high stress vulnerable between tetrafluoroethene and fixture, be not suitable for measuring under high stress level.
Summary of the invention
In view of the drawbacks of the prior art, it is an object of the invention to realize a variety of rings under plate-shaped metal material high stress level
Accurate electrochemical measurement under the factor stimulation control condition of border, the lower test button Corrosion Thermodynamics of analysis high stress level effect,
Dynamic law inquires into corrosion process changing rule, show that varying environment factor and stress collective effect influence corrosion process
Rule.The present invention provides corrosion electrochemistry test method and devices under a kind of plate-shaped metal material high stress level, not only may be used
To realize the electro-chemical test under high stress level, and it is convenient using load, and easy to operate, measurement accuracy is high, can carry out
The control of a variety of environmental factors is simulated.
Corrosion electrochemistry test method and device under a kind of plate-shape metal sample high stress, the electro-chemical test side
Method is narrow using the wide centre in both ends and both ends are provided with connecting hole for the electrochemical in-situ precise measurement under great horizontal stress effect
Plate-shape metal tensile sample.It is connected between tensile sample and fixture using pin type, pin is using high-intensitive silicon carbide ceramics
Stick ensures that pin is able to bear high stress and the insulation between sample, is loaded onto high stress level, stress by cupping machine
Horizontal reachable 1000MPa.Coating film neoprene on the inside of stretching clamp, it is ensured that sample side and energy when fixture interior side contacts are complete
All insulation.The corrosion electrolytic cell is provided with round etch pit, after plate tensile sample applies load, passes through insulation clamping screw and electricity
It is adjacent between solution pond etch pit, and passes through rubber seal rings for seal waterproof.The experimental rig by corrosion electrolytic cell, loads fixture,
Plate tensile sample three parts composition, the corrosion electrolytic cell includes stationary barrier and closed cylinder etchant solution pond, etchant solution pond
Have multiple apertures, temperature control, ventilation, solution circulation may be implemented, realize the simulation of a variety of environmental factors.
The electrochemical test method uses three-electrode system, and testing procedure is as follows
1) by tensile sample by connecting between high-strength carborundum ceramic rod and fixture, operation cupping machine adds sample
Stress level needed for being downloaded to test；
2) electrolytic cell for being provided with etch pit is adjacent to tensile sample, rubber seal is lined at etch pit, corrode hole site
Registration coupon gauge length section corrosion area screws insulation clamping screw for sample and is adjacent to electrolytic cell etch pit, and etch pit size is
Working electrode area；
3) test solution is added in electrolytic cell opening, adjusts experimental condition needed for experimental rig aperture controls；
4) reference electrode is placed in Luggin capillary, is put into platinum electrode, connect the electrode to electrochemistry work using conducting wire
It stands, starts electro-chemical test；
5) after the completion of testing, first solution is discharged, then sample unloading is removed.
The corrosion electrolytic cell is organic glass processing and fabricating, is equipped with stationary barrier and etchant solution pond, partition and corrosion
It connects and fixes by stainless steel screw rod between solution pool.Stationary barrier center is equipped with screw thread, and is equipped with clamping screw and passes through partition
Center screw thread makes sample be close to etch pit, clamping screw used is the nylon material of insulation by screwing clamping screw.
The corrosion electrolytic cell is equipped with Luggin capillary, auxiliary electrode, and is fixed by rubber stopper.Be provided with gas outlet, into
Liquid mouth, liquid outlet, air inlet.Liquid outlet and air inlet are connected to rubber tube, and are switched by spring clip.The corrosion electrolysis
Pond is additionally provided with thermometer, thermocouple, it can be achieved that temperature real-time monitoring and control.
Corrosion electrochemistry test method and device under plate-shaped metal material high stress level provided by the invention, high stress water
The flat lower insulating protection effect of effect will not fail, dielectric pin is indeformable, and the accurate electrochemical that may be implemented under high stress level is surveyed
Examination.Working electrode area is fixed by the etch pit of etchant solution pond fixed-area, and passes through rubber seal waterproof sealing, work
It is accurate to make electrode area, and does not need approved sample, thus it is easy to operate, and measurement accuracy is high.Sample is bonded by clamping screw to be corroded
Solution pool is fixed, easy to disassemble, multiple measurement.In addition, by ventilation, the monitoring adjusting of temperature, solution loop control, Ke Yijin
The control simulation of a variety of environmental factors of row, obtains varying environment factor and stress collective effect to corrosion process affecting laws.
Detailed description of the invention
Fig. 1 is experimental rig structural schematic diagram of the invention；
Fig. 2 is present invention test electrolytic cell top view；
Fig. 3 is plate-shape metal sample schematic diagram used in the present invention；
In figure:
1- fixture, 2- silicon carbide rod, 3- sample, the gas outlet 4-, 5- inlet, 6- liquid outlet, 7- air inlet, 8- Lu Jinmao
The fixed spiral shell of tubule, 9- thermocouple, 10- heating tube, 11- auxiliary electrode, 12- solution pool, 13- sealing ring, 14- clamping screw rod, 15-
Bar, 16- stationary barrier, 17- rubber stopper.
Specific embodiment:
Corrosion electrochemistry under plate-shape metal sample high stress of the invention is tested with reference to the accompanying drawings and examples
Method and device is described in detail.
Embodiment
Corrosion electrochemistry test method and device under a kind of plate-shape metal sample high stress, may be implemented high stress water
It is flat to act on lower plate-shaped metal material electro-chemical test.This experimental rig is mainly by corrosion electrolytic cell, loads fixture, plate tensile sample three
Part forms, such as Fig. 1.Plate-shape metal sample used is that the wide centre in both ends is narrow and both ends are provided with the plate of connecting hole and stretch examination
Sample 3, sample specific size such as Fig. 3.It is connected between tensile sample 3 and fixture 1 using pin type, pin is using high-intensitive silicon carbide
Ceramic rod 2,3 absolutely insulation, fixtures 1 are connected with cupping machine between sample.1 inside coating film neoprene rubber of stretching clamp
Glue, it is ensured that sample side and energy when fixture interior side contacts are completely insulated.
Corrosion electrolytic cell is organic glass processing and fabricating, such as Fig. 2, be equipped with stationary barrier 16 and etchant solution pond 12,16 every
It connects and fixes by stainless steel screw rod 15 between plate and etchant solution pond 12, intermediate there are a distances for penetrating sample.Gu
16 center of determine dividing plate is equipped with screw thread, and is equipped with clamping screw 14 and passes through partition center screw thread, and clamping screw 14 used is insulation
Nylon material.
It is additionally provided with gas outlet 4, inlet 5, liquid outlet 6, air inlet 7 above etchant solution pond 12, and is put by aperture
Heating tube 10, thermocouple 9 may be implemented temperature control, ventilation, carry out solution circulation using circulating pump, realize a variety of environmental factors
Simulation, obtain varying environment factor and stress collective effect to corrosion process affecting laws.
Electro-chemical test uses three-electrode system, and corrosion electrolytic cell is equipped with Luggin capillary 8, auxiliary electrode 11, and passes through
Rubber stopper 17 is fixed, and when test, reference electrode is placed in Luggin capillary 8, and electrode is connected to electrochemical workstation by conducting wire.
Specific experiment process of the invention are as follows:
1) tensile sample 3 is passed through and corrodes electrolytic cell and fixture 1, behind appropriate alignment jig position, by silicon carbide ceramics stick 2
It is inserted into the connecting hole of fixture and sample 3, sample is fixed；
2) electrolytic cell for being provided with etch pit is adjacent to tensile sample, rubber seal 13 is lined at etch pit, corrode hole location
Registration coupon gauge length section corrosion area is set, clamping screw 14 is then aligned the intermediate fragment position of tensile sample 3, turn clamping screw
14 make 3 interlude of tensile sample be close to etch pit, apply 1000MPa stress to tensile sample 3 by cupping machine；
3) liquid outlet 6 is closed, test solution is added from inlet 5, air inlet 7 connects gas cylinder and is passed through gas, and adjusts
Air inflow.Later, heating tube 10 and thermocouple 9 are connect with temperature controller, adjusts solution temperature；
4) be put into saturated calomel electrode in Luggin capillary 8, by working electrode, that is, tensile sample 3, saturated calomel electrode,
Auxiliary electrode 11 is connected by conducting wire with electrochemical workstation, and electro-chemical test is carried out；
5) after electro-chemical test, first conducting wire is unloaded, the discharge test solution of liquid outlet 6 is opened, then unclamps and compress
Screw rod 14 unloads it to tensile sample by cupping machine, finally unloads tensile sample 3.
Corrosion electrochemistry test method and device under plate-shape metal sample high stress as described above, may be implemented height
Stress level load, easy to operate, load is convenient, and measurement is accurate, and multiple environmental conditions control simulation may be implemented, obtain different rings
Border factor and stress collective effect are to corrosion process affecting laws.
Claims (4)
1. corrosion electrochemistry test method and device under a kind of plate-shape metal sample high stress, the electrochemical test method
For the electrochemical in-situ precise measurement under great horizontal stress effect, using three-electrode system, it is characterised in that: wide using both ends
Intermediate narrow and both ends are provided with the plate-shape metal tensile sample 3 of connecting hole, are connected between tensile sample 3 and fixture 1 using pin type,
Pin ensures that pin is able to bear high stress and the insulation between sample, by stretching using high-intensitive silicon carbide ceramics stick 2
Testing machine is loaded onto high stress level, and stress level is rotten by sample and electrolytic cell by insulation clamping screw 14 up to 1000MPa
It is adjacent between borrosion hole, it is ensured that the accuracy of insulation and working electrode area, and waterproof is sealed by rubber seal 13, it is added real
After testing solution, environmental condition control simulation is carried out by adjusting experimental rig aperture；The experimental rig by corrosion electrolytic cell, plus
Fixture, plate tensile sample three parts composition are carried, the corrosion electrolytic cell includes stationary barrier 16 and closed cylinder etchant solution pond, corruption
Erosion solution pool has multiple apertures, and temperature control, ventilation, solution circulation may be implemented, realize the simulation of a variety of environmental factors.
2. corrosion electrochemistry test method and device under plate-shape metal sample high stress described in accordance with the claim 1,
Be characterized in that: steps are as follows for the electro-chemical test
1) by tensile sample 3 by connecting between high-strength carborundum ceramic rod 2 and fixture 1, operation cupping machine adds sample
Stress level needed for being downloaded to test；
2) electrolytic cell for being provided with etch pit is adjacent to tensile sample, rubber seal, etch pit position alignment is lined at etch pit
Sample marking distance section corrosion area screws insulation clamping screw 14 for sample and is adjacent to electrolytic cell etch pit, and etch pit size is work
Make electrode area；
3) test solution is added in electrolytic cell opening, adjusts experimental condition needed for experimental rig aperture controls；
4) reference electrode is placed in Luggin capillary 8, is put into platinum electrode, connect the electrode to electrochemical operation using conducting wire
It stands, starts electro-chemical test；
5) after the completion of testing, first solution is discharged, then sample unloading is removed.
3. corrosion electrochemistry test method and device under plate-shape metal sample high stress described in accordance with the claim 1,
It is characterized in that, the corrosion electrolytic cell is equipped with stationary barrier 16, is consolidated partition and etchant solution pond 12 using stainless steel screw rod 15
It is fixed, partition center screw thread is passed through using nylon material clamping screw 14, by screwing clamping screw, sample is made to be close to etch pit.
4. corrosion electrochemistry test method and device under plate-shape metal sample high stress described in accordance with the claim 1,
Be characterized in that: the corrosion electrolytic cell is equipped with Luggin capillary 8, auxiliary electrode 11, and fixed by rubber stopper 17；It is provided with outlet
Mouth 4, inlet 5, liquid outlet 6, air inlet 7, liquid outlet and air inlet are connected to rubber tube, and are switched by spring clip；Institute
State corrosion electrolytic cell be additionally provided with heating tube 10, thermocouple 9, it can be achieved that temperature real-time monitoring and control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811407170.6A CN109507100A (en) | 2018-11-23 | 2018-11-23 | Corrosion electrochemistry test method and device under plate-shape metal sample high stress |
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|---|---|---|---|
| CN201811407170.6A CN109507100A (en) | 2018-11-23 | 2018-11-23 | Corrosion electrochemistry test method and device under plate-shape metal sample high stress |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261294A (en) * | 2019-06-04 | 2019-09-20 | 中国船舶重工集团公司第七二五研究所 | Metal erosion electrochemical test experiment device in cracked zone under a kind of simulated deep-sea environment |
| CN111504801A (en) * | 2020-05-20 | 2020-08-07 | 西安稀有金属材料研究院有限公司 | Device and method for performing stress corrosion experiment in high-temperature liquid phase corrosion environment |
| CN111855556A (en) * | 2020-06-30 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Metallographic detection device and detection method for corrosion-resistant iron matrix welded joint |
| CN113588417A (en) * | 2021-06-24 | 2021-11-02 | 中国特种设备检测研究院 | Metal coating stress corrosion test method and device in corrosion environment |
| CN113866083A (en) * | 2021-08-16 | 2021-12-31 | 中山大学 | Corrosion device for simulating combined action of dynamic microorganisms and stress |
| CN115112555A (en) * | 2022-07-20 | 2022-09-27 | 黄山学院 | Stress electrochemical corrosion device |
| CN115855653A (en) * | 2022-12-15 | 2023-03-28 | 太原理工大学 | Corrosion electrochemistry testing arrangement of controllable temperature |
| CN116539512A (en) * | 2023-05-12 | 2023-08-04 | 北京科技大学 | Stress corrosion simulation experiment equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217798Y (en) * | 1994-12-15 | 1996-01-17 | 核工业理化工程研究院 | Spring constant-load stress corrosion testing device |
| CN101608995A (en) * | 2008-06-20 | 2009-12-23 | 宝山钢铁股份有限公司 | The measuring method of galvanic corrosion and sample thereof under the high-stress state of welded tube weld seam |
| CN103323387A (en) * | 2013-06-25 | 2013-09-25 | 沈阳建筑大学 | Electro-chemical corrosion simulator with in-situ loading |
| CN204116137U (en) * | 2014-10-24 | 2015-01-21 | 中国石油天然气集团公司 | A kind of electrochemical corrosion test fixture loading tension for petroleum pipeline |
| CN106769474A (en) * | 2017-01-14 | 2017-05-31 | 常州大学 | Loading biaxial tension stress sample Experiment in Erosive Electrochemistry device and method of testing |
-
2018
- 2018-11-23 CN CN201811407170.6A patent/CN109507100A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217798Y (en) * | 1994-12-15 | 1996-01-17 | 核工业理化工程研究院 | Spring constant-load stress corrosion testing device |
| CN101608995A (en) * | 2008-06-20 | 2009-12-23 | 宝山钢铁股份有限公司 | The measuring method of galvanic corrosion and sample thereof under the high-stress state of welded tube weld seam |
| CN103323387A (en) * | 2013-06-25 | 2013-09-25 | 沈阳建筑大学 | Electro-chemical corrosion simulator with in-situ loading |
| CN204116137U (en) * | 2014-10-24 | 2015-01-21 | 中国石油天然气集团公司 | A kind of electrochemical corrosion test fixture loading tension for petroleum pipeline |
| CN106769474A (en) * | 2017-01-14 | 2017-05-31 | 常州大学 | Loading biaxial tension stress sample Experiment in Erosive Electrochemistry device and method of testing |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261294A (en) * | 2019-06-04 | 2019-09-20 | 中国船舶重工集团公司第七二五研究所 | Metal erosion electrochemical test experiment device in cracked zone under a kind of simulated deep-sea environment |
| CN110261294B (en) * | 2019-06-04 | 2022-04-19 | 中国船舶重工集团公司第七二五研究所 | Electrochemical test device for simulating metal corrosion of crack area under deep sea environment |
| CN111504801A (en) * | 2020-05-20 | 2020-08-07 | 西安稀有金属材料研究院有限公司 | Device and method for performing stress corrosion experiment in high-temperature liquid phase corrosion environment |
| CN111855556A (en) * | 2020-06-30 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Metallographic detection device and detection method for corrosion-resistant iron matrix welded joint |
| CN113588417A (en) * | 2021-06-24 | 2021-11-02 | 中国特种设备检测研究院 | Metal coating stress corrosion test method and device in corrosion environment |
| CN113866083A (en) * | 2021-08-16 | 2021-12-31 | 中山大学 | Corrosion device for simulating combined action of dynamic microorganisms and stress |
| CN115112555A (en) * | 2022-07-20 | 2022-09-27 | 黄山学院 | Stress electrochemical corrosion device |
| CN115112555B (en) * | 2022-07-20 | 2023-09-22 | 黄山学院 | Stress electrochemical corrosion device |
| CN115855653A (en) * | 2022-12-15 | 2023-03-28 | 太原理工大学 | Corrosion electrochemistry testing arrangement of controllable temperature |
| CN116539512A (en) * | 2023-05-12 | 2023-08-04 | 北京科技大学 | Stress corrosion simulation experiment equipment |
| CN116539512B (en) * | 2023-05-12 | 2023-12-22 | 北京科技大学 | Stress corrosion simulation experiment equipment |
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Application publication date: 20190322 |