CN108166001A - Material cathode protection tester and method under a kind of slow tensional state - Google Patents
Material cathode protection tester and method under a kind of slow tensional state Download PDFInfo
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- CN108166001A CN108166001A CN201810047858.1A CN201810047858A CN108166001A CN 108166001 A CN108166001 A CN 108166001A CN 201810047858 A CN201810047858 A CN 201810047858A CN 108166001 A CN108166001 A CN 108166001A
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- 239000000463 material Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004210 cathodic protection Methods 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000013535 sea water Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
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- 238000005339 levitation Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000011160 research Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
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- 238000010998 test method Methods 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/22—Monitoring arrangements therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The present invention provides material cathode protective device under a kind of slow tensional state, including：Container, upper electromagnetic attraction device, lower electromagnetic attraction device, upper magnetic clamp, magnetic fixture, sample limiting balancing device, optical positioning sensors, elaborate servo transmission device, current control device, impressed cathodic positioning system, external cathodic protection potential lead and solid state reference electrode.It by using magnetic levitation technology, with reference to accurate coordinate detection and feedback technique and electromagnetic field control and feedback technique, realizes in corrosive medium, under material tensional state, realizes that detected materials are electrically insulated with test equipment, obtain accurate cathodic protection potential value.
Description
Technical field
The invention belongs to measuring for materials fields, and in particular to material cathode under slow tensional state in a kind of corrosive environment
Protection tester and method.
Background technology
It when marine high strength steel is on active service in marine environment, can be corroded by seawater, therefore apply cathodic protection skill to it
Art, to reduce corrosiveness of the seawater to steel construction.Since high-strength steel material usually has certain Hydrogen Embrittlement, and with material
Expect the increase of intensity, Hydrogen Embrittlement enhancing.When the cathodic protection potential of application is relatively negative, metal material surface can be caused to analyse
Hydrogen after hydrogen diffuses into metal structure inside, may cause the hydrogen embrittlement fracture of material.Therefore, rationally effective cathode is protected for selection
Shield potential region needs emphasis to consider the problems of when being and carrying out cathodic Protection Design to high-strength steel.
When stress corrosion fracture (SCC) is that material is on active service in corrosive medium environment, acted on by applied stress, two
The phenomenon that lower metal material of common interaction of person is broken.The mechanical performance of metal material is in stress and corrosive medium ring
Reduction amplitude under the synergistic effect in both borders is often respectively acting on metal material later phase again than the two single factor tests
It mutually stacks up much greater.In recent years, scientific research personnel both domestic and external carries out the materials such as metal and its alloy in terms of SCC
The reason of very extensive research, the origin of micro-crack of the metal material when SCC occurs, crack propagation and the process grown up
It is the basic problem for studying SCC, and then analyzes until gradually grasping and understand its mechanism of action.
Experimental study to metal material SCC is exactly to detect stress corrosion of the metal material in specific use environment to open
The sensibility split is rationally designed according to the feature of its stress corrosion cracking and experiment purpose, to take necessary arrange
It applies to reduce loss.The factors such as stress loading, corrosive medium environment however, as the difference of metal material and suffered by it
Difference, the research method of stress corrosion cracking are also different.The persevering load test of experiment research, perseverance generally at present
Deformation test, fracture mechanics experiments and slow strain rate test, field test and laboratory simulation experiment and various realities
The research methods such as the combination experiment tested.
For Steel material E460, E500, E550 etc., slow strain rate experiment (SSRT) is that the studies above method is most common
Research method, mainly using CMT5205/5305 electronic universal testers, steel and its weldment using the tired of Japanese Shimadzu Corporation
Labor cupping machine, it is glycerine and seawater to stretch surrounding medium, when corrosive medium is seawater, sample is mounted on specific rotten
It loses slot and adds in natural sea-water, and be inserted into saturated calomel electrode (SCE) and to electrode (herein to electrode using stereotype, stereotype surface
Product is sufficiently large), when being stretched slowly, working electrode is connected in the lower end of sample, using general three-electrode system and homemade
Potentiostat applies the tensile sample in Seawater constant potential cathodic protection, and the cathodic protection potential of application is respectively certainly rotten
It loses current potential and is determined according to the polarization curve of respective material.
The materials such as metal material, particularly high-strength steel have the characteristics such as high intensity and high tenacity, in drawing process, examination
The fixture of sample must also use the metal material of high intensity.The fixture of sample is communicated with the outside by stretch rod, cause sample with
Whole equipment becomes equipotential body, in cathodic protection test is carried out, leads to be applied to the potential conductance of sample to whole equipment
Even greatly, there is deviation in test, leads to not obtain the exact value of actually applied current potential.
Invention content
The present invention is for detected materials and test equipment present in existing slow strain rate cathode potential test method
It can not insulate, the problem of so as to cause actually applied current potential exact value cannot be obtained, it is cloudy to provide material under a kind of slow tensional state
Pole protection tester and test method, by using magnetic levitation technology, with reference to accurate coordinate detection and feedback technique and
Electromagnetic field controls and feedback technique, realizes in corrosive medium, under material tensional state, realizes detected materials and test equipment electricity
Insulation, obtains accurate cathodic protection potential value.
The present invention provides material cathode protective device under a kind of slow tensional state, including container, upper electromagnetic attraction device,
Lower electromagnetic attraction device, upper magnetic clamp, magnetic fixture, sample limiting balancing device, optical positioning sensors, elaborate servo
Transmission device, current control device, impressed cathodic positioning system, cathodic protection potential lead and solid state reference electrode.
Wherein, the lower electromagnetic attraction device is fixed on the container bottom of material cathode protection tester, described to power on
Magnetic pull device is fixed on the container top of material cathode protection tester, with being similarly disposed at material cathode protection test dress
The elaborate servo transmission device for putting external container is connected.
Wherein, the solid state reference electrode is used for the current potential of test sample, and cathodic protection potential lead is connected to stretching examination
Sample, the protection potential of sample are applied by external cathodic protection potential lead, and impressed cathodic positioning system is placed on container
Outside.
Wherein, the upper magnetic clamp and magnetic fixture are respectively used to fixed material sample upper/lower terminal, fixture according to
Specimen shape and dimensioned.
Wherein, the sample limits balancing device between upper and lower electromagnetic attraction device, the upper magnetic clamp and institute
State the upper and lower part that magnetic fixture is located in sample limiting balancing device.
Wherein, the electromagnetic attraction device is the electromagnet by current control magnetism intensity.
Wherein, the elaborate servo transmission device is servo motor.
Wherein, the optical positioning sensors are fixed on the outside of limiting balancing device, limit upper and lower the two of balancing device
Hold 2 sensors of each installation.
The present invention also provides carry out material cathode protection test using material cathode protective device under above-mentioned slow tensional state
Method, including：
Upper magnetic clamp and magnetic fixture are respectively charged into sample to be tested upper and lower ends and fixation by the first step；
Material sample and magnetic clamp are fitted into limiting balancing device and are fitted into test chamber, noted in container by second step
Enter corrosive medium needed for seawater etc.；
Third walks, firing current control device, provides electric current to electromagnetic attraction device so that material sample and magnetic clamp
In stable suspersion state；
4th step, open optical alignment sensing device, measure sample upper and lower side position and with electromagnetic attraction device
Distance；
5th step sets rate of extension, and servomechanism is started to work, and optical alignment sensing device obtains change in location
Parameter is transmitted to current control device, automatically adjusts current value, changes magnetic force value, is stretched to sample with pulling force, drawing process
In, sample is in suspended state, is electrically insulated with experimental rig；
6th step, in drawing process, impressed cathodic current potential protection system gives sample to apply cathodic protection potential, until sample
It is pulled off, records the data such as pulling force, displacement automatically.
Beneficial technique effect
Material cathode protection tester and method under slow tensional state provided by the invention, will using magnetic levitation effect
The contact force of equipment and sample in traditional tension test, becomes contactless force, using electromagnetic attraction size can by electric current and
The principle of distance controlling automatically controls the implementation of the pulling force of drawing process, by optical positioning sensors automatic collection displacement data,
Computer is fed back to, electric current realization is adjusted and automatically controls.In electric insulating state between sample and equipment, thus avoid equipment with
And the interference of the current potential to being applied to sample such as the earth, accurate cathodic protection potential value can be obtained.
Description of the drawings
Material cathode protection tester structure diagram under the slow tensional states of Fig. 1.
Specific embodiment
Based on this, the present invention provides material cathode protective device under a kind of slow tensional state, draws including container, upper electromagnetism
Power apparatus, lower electromagnetic attraction device, upper magnetic clamp, magnetic fixture, sample limiting balancing device, optical positioning sensors,
Elaborate servo transmission device, current control device, impressed cathodic positioning system, cathodic protection potential lead and solid state reference electricity
Pole.
The lower electromagnetic attraction device is fixed on the container bottom of material cathode protection tester, the upper electromagnetic attraction
Device is fixed on the container top of material cathode protection tester, with being similarly disposed at material cathode protection tester container
External elaborate servo transmission device is connected.
The electromagnetic attraction device is preferably electromagnet.
The elaborate servo transmission device is servo motor.
The upper magnetic clamp and magnetic fixture are respectively used to fixed material sample upper/lower terminal, and fixture is according to sample
Shape and size are formulated.
The sample limits balancing device between upper and lower electromagnetic attraction device, the upper magnetic clamp and it is described under
Magnetic clamp is located at the upper and lower part in sample limiting balancing device, if material sample is cylindrical sample, the limit
Position balancing device is cylindrical sleeve, sets horizon bar outside balancing device, is connected and fixes with cylindrical sample cavity inner wall.
The optical positioning sensors are fixed on the outside of limiting balancing device, and upper/lower terminal respectively installs 2 sensors,
A sensor per upper and lower end form it is a set of, wherein 1 set for monitoring the spacing of electromagnetic attraction device and magnetic clamp, separately
Outer 1 set for measuring sample deformation size.
The current control device is located at the external container of protection tester, the container that conducting wire passes through protection tester
The instrument connection of upper cover plate enter in protection tester and with material sample, electromagnetic attraction device, optical positioning sensors are connected
It connects, which is used to provide electric current to electromagnetic attraction device to generate electromagnetic force, by adjusting current value, changes the big of electromagnetic force
It is small.
The solid state reference electrode is used for the current potential of test sample, and cathodic protection potential lead is connected to tensile sample, tries
The protection potential of sample is to be applied by impressed cathodic positioning system by external cathodic protection potential lead, impressed cathodic current potential system
System is placed on the outside of cathode protection device.
The present invention can increase deep sea pressure device, such as booster pump as needed, and persistent pressure reaches and keeps the pressure set
Force value realizes the cathodic protection test under deep sea condition tensional state.
The present invention also provides carry out material cathode protection test using material cathode protective device under above-mentioned slow tensional state
Method, including：
Upper magnetic clamp and magnetic fixture are respectively charged into sample to be tested upper and lower ends and fixation by the first step；
Material sample and magnetic clamp are packed into limiting balancing device and are packed into test chamber, noted in container by second step
Enter corrosive medium needed for seawater etc.；
Third walks, firing current control device, provides electric current to electromagnetic attraction device so that material sample and magnetic clamp
In stable suspersion state；
4th step, open optical alignment sensing device, measure sample upper and lower side position and with electromagnetic attraction device
Distance；
5th step sets rate of extension, and servomechanism is started to work, and optical alignment sensing device obtains change in location
Parameter is transmitted to current control device, automatically adjusts current value, changes magnetic force value, is stretched to sample with pulling force；
6th step, in drawing process, impressed cathodic positioning system gives sample to apply cathodic protection potential, until sample is drawn
It is disconnected, the data such as pulling force, displacement are recorded automatically.
Below using embodiment and attached drawing come the embodiment that the present invention will be described in detail, how skill is applied to the present invention whereby
Art means solve technical problem, and the realization process for reaching technique effect can fully understand and implement according to this.
As shown in Figure 1, under _ slow tensional state provided by the invention material cathode protection tester include container 16, on
Electromagnet 6, lower electromagnet 5, upper magnetic clamp 2, magnetic fixture 3, as sample limiting balancing device sleeve 4, optics it is fixed
Level sensor 19, servo motor 9, impressed cathodic positioning system 18 and current control device 17.The lower electromagnet 5 passes through lower solid
Determine the container bottom that bolt 7 is fixed on material cathode protection tester, the upper electromagnet 6 is fixed by upper fixing bolt 8
In the container top of material cathode protection tester, with being similarly disposed at watching for material cathode protection tester external container
Motor 9 is taken to be connected.Between upper and lower electromagnet 5 and 6,4 outside setting horizon bar of sleeve tries the sleeve 4 with cylinder
Sample cavity inner wall is connected and fixes.The optical positioning sensors are fixed on outside sleeve 4, and upper/lower terminal respectively installs 2 sensings
Device, a sensor per upper and lower end form it is a set of, wherein 1 set for monitoring the spacing of electromagnetic attraction device and magnetic clamp,
Other 1 set for measuring sample deformation size.
The current control device is located at the outside of protection tester, and conducting wire is upper by protection tester container 16
The instrument connection 10-13 of cover board enter in protection tester container and with material sample, electromagnet, optical positioning sensors are connected
It connects.
The solid state reference electrode 15 is used for the current potential of test sample, and cathodic protection potential lead 14 is connected to stretching examination
Sample, the protection potential of sample are applied by external cathodic protection potential lead 14, the impressed cathodic electricity of cathodic protection potential
Position system is placed on the outside of cathode protection device.
All above-mentioned this intellectual properties of primarily implementation, there is no this new products of implementation of setting limitation other forms
And/or new method.Those skilled in the art will utilize this important information, the above modification, to realize similar execution feelings
Condition.But all modifications or transformation belong to the right of reservation based on new product of the present invention.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made still fall within the protection domain of technical solution of the present invention.
Claims (9)
1. a kind of material cathode protective device under slow tensional state, which is characterized in that including：Container, upper electromagnetic attraction device, under
Electromagnetic attraction device, upper magnetic clamp, magnetic fixture, sample limiting balancing device, optical positioning sensors, elaborate servo pass
Dynamic device, current control device, impressed cathodic positioning system, external cathodic protection potential lead and solid state reference electrode.
2. material cathode protective device under slow tensional state as described in claim 1, it is characterised in that：The lower electromagnetic attraction
Device is fixed on the container bottom of material cathode protection tester, and the upper electromagnetic attraction device is fixed on material cathode protection
The container top of test device, the elaborate servo transmission device with being similarly disposed at material cathode protection tester external container
It is connected.
3. material cathode protective device under slow tensional state as claimed in claim 1 or 2, it is characterised in that：The solid-state ginseng
Than the current potential that electrode is used for test sample, cathodic protection potential lead is connected to tensile sample, and the protection potential of sample is to pass through
What external cathodic protection potential lead applied, the impressed cathodic positioning system of cathodic protection potential is placed on cathode protection device
It is external.
4. material cathode protective device under slow tensional state as described in claims 1 to 3, it is characterised in that：The upper magnetism
Fixture and magnetic fixture are respectively used to fixed material sample upper/lower terminal, and fixture is according to specimen shape and dimensioned.
5. material cathode protective device under the slow tensional state as described in Claims 1-4, it is characterised in that：The sample limit
For position balancing device between upper and lower electromagnetic attraction device, the upper magnetic clamp and the magnetic fixture are located at the examination
Upper and lower part in sample limiting balancing device.
6. material cathode protective device under the slow tensional state as described in claim 1 to 5, it is characterised in that：The electromagnetism draws
Power apparatus is electromagnet.
7. material cathode protective device under the slow tensional state as described in claim 1 to 6, it is characterised in that：The precision is watched
Transmission device is taken as servo motor.
8. material cathode protective device under the slow tensional state as described in claim 1 to 7, it is characterised in that：The optics is determined
Level sensor is fixed on the outside of limiting balancing device, and the upper/lower terminal for limiting balancing device respectively installs 2 sensors.
9. material cathode protection test side is carried out using material cathode protective device under claim 1 to the 8 slow tensional state
Method, which is characterized in that including：
Upper magnetic clamp and magnetic fixture are respectively charged into sample to be tested upper and lower ends and fixation by the first step；
Material sample and magnetic clamp are packed into limiting balancing device and are packed into test chamber, injected in container by second step
Corrosive medium needed for seawater etc.；
Third walks, firing current control device, provides electric current to electromagnetic attraction device so that material sample and magnetic clamp are in
Stable suspersion state；
4th step opens optical alignment sensing device, measures the position of sample upper and lower side and the distance with electromagnetic attraction device；
5th step sets rate of extension, and servomechanism is started to work, and optical alignment sensing device obtains change in location parameter
Current control device is transmitted to, automatically adjusts current value, changes magnetic force value, is stretched to sample with pulling force；
6th step, in drawing process, impressed cathodic positioning system gives sample to apply cathodic protection potential, until sample is pulled off,
The data such as automatic record pulling force, displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047858.1A CN108166001B (en) | 2018-01-18 | 2018-01-18 | Material cathode protection testing device and method in slow stretching state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047858.1A CN108166001B (en) | 2018-01-18 | 2018-01-18 | Material cathode protection testing device and method in slow stretching state |
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| Publication Number | Publication Date |
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| CN108166001A true CN108166001A (en) | 2018-06-15 |
| CN108166001B CN108166001B (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810047858.1A Active CN108166001B (en) | 2018-01-18 | 2018-01-18 | Material cathode protection testing device and method in slow stretching state |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724871A (en) * | 2018-12-11 | 2019-05-07 | 江苏亚星锚链股份有限公司 | Slow tensile test apparatus under a kind of R6 grades of mooring cable cathodic protection |
| CN111398023A (en) * | 2020-03-25 | 2020-07-10 | 中国船舶重工集团公司第七二五研究所 | Device and method for simultaneously realizing compact tensile loading sample corrosive solution environment and cathodic protection test environment and application |
| CN112461736A (en) * | 2020-11-04 | 2021-03-09 | 苏州热工研究院有限公司 | Test equipment and test method for evaluating uniform corrosion of metal material |
| CN114941449A (en) * | 2022-04-29 | 2022-08-26 | 上海交通大学 | Tensioning device, tensioning and reinforcing system and method for TRM (blast furnace top gas recovery turbine module) grating |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008058229A (en) * | 2006-09-01 | 2008-03-13 | Hitachi Ltd | Scc determining method of metallic material, and scc damage suppressing method |
| JP2009036558A (en) * | 2007-07-31 | 2009-02-19 | Hitachi-Ge Nuclear Energy Ltd | Method of monitoring stress corrosion crack, and management method of plant |
| CN102937569A (en) * | 2011-12-27 | 2013-02-20 | 北京化工大学 | Stress corrosion test apparatus |
| CN103499502A (en) * | 2013-09-28 | 2014-01-08 | 中国科学院金属研究所 | Slow stretching experimental device with high-temperature high-pressure circulating water and using method |
| CN103969176A (en) * | 2014-05-21 | 2014-08-06 | 中国船舶重工集团公司第七二五研究所青岛分部 | Method for testing seawater corrosion of low-alloy steel under stress state |
| CN105388101A (en) * | 2015-12-02 | 2016-03-09 | 中国石油天然气集团公司 | Combined-loading stress corrosion testing apparatus and method |
| RU2611699C1 (en) * | 2015-12-30 | 2017-02-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский политехнический университет" | Evaluation method of stress corrosion cracking resistance of low-alloyed pipe steels |
| CN206369665U (en) * | 2016-10-31 | 2017-08-01 | 安科工程技术研究院（北京）有限公司 | Evaluate the experimental rig of Hydrogen Embrittlement of the buried pipeline steel under negative sense current potential |
-
2018
- 2018-01-18 CN CN201810047858.1A patent/CN108166001B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008058229A (en) * | 2006-09-01 | 2008-03-13 | Hitachi Ltd | Scc determining method of metallic material, and scc damage suppressing method |
| JP2009036558A (en) * | 2007-07-31 | 2009-02-19 | Hitachi-Ge Nuclear Energy Ltd | Method of monitoring stress corrosion crack, and management method of plant |
| CN102937569A (en) * | 2011-12-27 | 2013-02-20 | 北京化工大学 | Stress corrosion test apparatus |
| CN103499502A (en) * | 2013-09-28 | 2014-01-08 | 中国科学院金属研究所 | Slow stretching experimental device with high-temperature high-pressure circulating water and using method |
| CN103969176A (en) * | 2014-05-21 | 2014-08-06 | 中国船舶重工集团公司第七二五研究所青岛分部 | Method for testing seawater corrosion of low-alloy steel under stress state |
| CN105388101A (en) * | 2015-12-02 | 2016-03-09 | 中国石油天然气集团公司 | Combined-loading stress corrosion testing apparatus and method |
| RU2611699C1 (en) * | 2015-12-30 | 2017-02-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский политехнический университет" | Evaluation method of stress corrosion cracking resistance of low-alloyed pipe steels |
| CN206369665U (en) * | 2016-10-31 | 2017-08-01 | 安科工程技术研究院（北京）有限公司 | Evaluate the experimental rig of Hydrogen Embrittlement of the buried pipeline steel under negative sense current potential |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724871A (en) * | 2018-12-11 | 2019-05-07 | 江苏亚星锚链股份有限公司 | Slow tensile test apparatus under a kind of R6 grades of mooring cable cathodic protection |
| CN111398023A (en) * | 2020-03-25 | 2020-07-10 | 中国船舶重工集团公司第七二五研究所 | Device and method for simultaneously realizing compact tensile loading sample corrosive solution environment and cathodic protection test environment and application |
| CN111398023B (en) * | 2020-03-25 | 2023-06-23 | 中国船舶重工集团公司第七二五研究所 | Device, method and application for simultaneously realizing compact tensile loading sample corrosion solution environment and cathode protection test environment |
| CN112461736A (en) * | 2020-11-04 | 2021-03-09 | 苏州热工研究院有限公司 | Test equipment and test method for evaluating uniform corrosion of metal material |
| CN114941449A (en) * | 2022-04-29 | 2022-08-26 | 上海交通大学 | Tensioning device, tensioning and reinforcing system and method for TRM (blast furnace top gas recovery turbine module) grating |
| CN114941449B (en) * | 2022-04-29 | 2023-01-20 | 上海交通大学 | Tensioning device, tensioning and reinforcing system and method for TRM (Top gas insulated switchgear) grating |
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