CN110133090B - In-situ hydrogen charging experimental device - Google Patents
In-situ hydrogen charging experimental device Download PDFInfo
- Publication number
- CN110133090B CN110133090B CN201910555060.2A CN201910555060A CN110133090B CN 110133090 B CN110133090 B CN 110133090B CN 201910555060 A CN201910555060 A CN 201910555060A CN 110133090 B CN110133090 B CN 110133090B
- Authority
- CN
- China
- Prior art keywords
- lower shell
- upper cover
- cover body
- hydrogen charging
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000001257 hydrogen Substances 0.000 title claims abstract description 69
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 69
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 17
- 239000000523 sample Substances 0.000 claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims description 43
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 238000002474 experimental method Methods 0.000 claims description 11
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007373 indentation Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 5
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000000879 optical micrograph Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an in-situ hydrogen charging experimental device which comprises a base, a lower shell and an upper cover body. The longitudinal section of the lower shell is of a convex structure, the lower shell is fixed on the base through a locking bolt, symmetrically arranged through holes are formed in the lower shell and the upper cover body, and the upper cover body is fixed on the lower shell through a fastening screw. The hollow inner chamber of lower casing is equipped with the indent microscope carrier, and upper cover body center is equipped with the syringe needle test hole, and the syringe needle test hole sets up directly over the microscope carrier. The upper cover body is also provided with a wire connecting hole, two sides of the upper convex part of the lower shell are provided with a pair of bulges, and two sides of the upper cover body are provided with grooves matched with the bulges. The invention has novel structural design and convenient use, and can carry out in-situ hydrogen charging test on a hydrogen charging sample. The invention is suitable for the instruments using probes for measuring such as nano indentation, atomic force microscope and the like.
Description
Technical Field
The invention relates to the technical field of electrochemical experiments, in particular to an in-situ hydrogen charging experimental device.
Background
Hydrogen has an adverse effect on almost all metals of hydrogen induced plasticity loss and reduced resistance to hydrogen induced cracking, which phenomena are commonly referred to collectively as hydrogen embrittlement. While the material may have hydrogen entering the material during preparation, processing and use. Therefore, research on the effect of hydrogen on materials has become a key to safe and economical use of materials.
In order to study the effect of hydrogen on the material, mechanical testing of the hydrogen containing samples is required. Common methods of charging are aqueous electrolytic charging, molten salt electrolytic charging and gas phase charging, wherein aqueous electrolytic charging is most widely used because of its safety and ease of operation.
Conventional mechanical experiments such as uniaxial stretching experiments and the like can reflect the influence of hydrogen on the material on a macroscopic scale. However, as research proceeds, the effect of hydrogen on materials, especially the effect of hydrogen on different phases of metallic materials, on a microscopic scale is becoming increasingly important. Microscopic scale studies often require the use of tiny probes to determine the area of investigation, such as nanoindentation equipment.
The traditional test method is to take out the sample after hydrogen filling for testing, and hydrogen in the material can be combined into hydrogen to overflow in the interval from the completion of hydrogen filling to the beginning of the test, so that the accuracy of the experimental result is affected; in addition, in order to ensure the hydrogen concentration during the test, the sample is often charged with hydrogen for a long time, which can damage the surface of the sample and is unfavorable for the next test. The in-situ test can ensure that the test part always maintains higher hydrogen concentration, the hydrogen charging time can be reduced, and no hydrogen overflows. Therefore, the continuous online test while the sample is charged with hydrogen is very beneficial to researching the influence of hydrogen on the material.
As described above, the performance test of the microscopic dimension of the material can be realized by the probe-like equipment such as the nanoindentation instrument, but at present, no device for continuously and online testing the sample while charging hydrogen is provided for the equipment, which is insufficient to meet the requirement of researching the hydrogen embrittlement phenomenon of the material on the microscopic dimension at present.
Disclosure of Invention
The invention aims to provide an in-situ hydrogen charging experimental device, which realizes continuous online test of a sample while charging hydrogen so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the in-situ hydrogen charging experimental device comprises a base, a lower shell and an upper cover body, wherein the longitudinal section of the lower shell is of a convex structure, the lower shell is fixed on the base through a locking bolt, symmetrically arranged through holes are formed in the lower shell and the upper cover body, and the upper cover body is fixed on the lower shell through a fastening screw; the center of the lower shell is provided with a cylindrical hollow inner cavity, the hollow inner cavity is provided with a carrying platform, and the height of the carrying platform is lower than the upper edge of the hollow inner cavity; the center of the upper cover body is provided with a needle head test hole, the needle head test hole is arranged right above the carrier, and the upper cover body is also provided with a wire guide hole; protrusions are arranged on two opposite sides of the upper protruding portion of the lower shell, and grooves matched with the protrusions are arranged on two opposite sides of the upper cover body; an outward overflow port is formed in the bulge; the side wall of the upper bulge of the lower shell is provided with a liquid inlet, and the side wall of the opposite side is provided with a liquid outlet; and a rubber sealing gasket is arranged at the joint between the lower shell and the base.
Preferably, the carrier adopts a concave carrier, and the carrier adopts a cylindrical structure.
Preferably, the base, the lower shell and the upper cover are all made of organic glass polymer materials.
The application method of the in-situ hydrogen charging experimental device comprises the following steps:
A. firstly, connecting a liquid inlet on a lower shell with a flow pump through a liquid inlet pipe, and then connecting a liquid outlet with a container through a liquid outlet pipe;
B. placing the round sample welded with the lead on a carrier, directly injecting the hydrogen charging solution into the lower shell through a lead hole by using an injector, and enabling the liquid level to be 1 mm beyond the surface of the sample;
C. putting the platinum counter electrode into hydrogen charging solution through the wire guide hole, and fixing the upper cover body and the lower shell body by using a fastening bolt;
D. connecting a lead and a platinum counter electrode welded on a sample to an electrochemical workstation, and opening the electrochemical workstation according to the current density preset in an experiment;
E. starting a flow pump, feeding the hydrogen charging solution into the lower shell through a liquid inlet by the flow pump, discharging the hydrogen charging solution into an external container from a liquid outlet, and continuously circulating the hydrogen charging solution in the lower shell;
F. and finally, after the liquid level of the hydrogen charging solution is stable, the operation probe enters the needle head test hole to perform experimental operation.
The beneficial effects of the invention are as follows:
(1) The invention has novel structural design and convenient use, and can continuously test the in-situ mechanical properties of the hydrogen-filled sample. The invention is suitable for the instruments using probes for measuring such as nano indentation, atomic force microscope and the like.
(2) The invention adopts the flow pump to renew the charging solution, thereby ensuring that the container has fresh solution and ensuring the charging concentration.
(3) The upper cover body of the invention has a limit function on the probe and protects the safety of the sensor above the probe.
(4) The invention has compact design and can be used normally even if the probe is short.
(5) The invention uses the concave carrier, which not only limits the freedom degree of the round sample, but also ensures the rigidity of the sample, thereby enabling the experiment to be carried out smoothly.
(6) The base, the lower shell and the upper cover body are all made of high polymer materials, and the base, the lower shell and the upper cover body have excellent wear resistance and corrosion resistance, are not easy to damage and have long service life.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic view of the lower housing structure of the present invention.
Fig. 3 is a schematic view of the structure of the upper cover of the present invention.
The device comprises a base 1, a lower shell 2, an upper cover 3, a fastening screw 4, a carrying platform 5, a needle head test hole 6, a wire guide 7, a protrusion 8, a groove 9, an overflow port 10, a liquid inlet 11 and a liquid outlet 12.
Fig. 4 is an optical micrograph of 2205 duplex stainless steel before and after charging a for 1 hour, b for 5 hours, and c for 5 hours.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The in-situ hydrogen charging experimental device comprises a base 1, a lower shell 2 and an upper cover body 3, wherein the longitudinal section of the lower shell 2 is of a convex structure, the lower shell 2 is fixed on the base 1 through a locking bolt, symmetrically arranged through holes are formed in the lower shell 2 and the upper cover body 3, the upper cover body 3 is fixed on the lower shell 2 through a fastening screw 4, a cylindrical hollow inner cavity is formed in the center of the lower shell 2, a carrying platform 5 is arranged in the hollow inner cavity, and the height of the carrying platform 5 is lower than the upper edge of the hollow inner cavity; the invention discloses a hydrogen charging device, which is characterized in that an indentation needle testing hole 6 is formed in the center of an upper cover body 3, the indentation needle testing hole 6 is arranged right above a carrying platform 5, a wire connecting hole 7 is formed in the upper cover body 3, protrusions 8 are arranged on two opposite sides of an upper protruding portion of a lower shell 2, grooves 9 matched with the protrusions 8 are formed in two opposite sides of the upper cover body 3, an outward overflow port 10 is formed in the protrusions 8, a liquid inlet 11 is formed in one side of a protruding side wall of the lower shell 2, a liquid outlet 12 is formed in the other opposite side of the protruding side wall of the lower shell 2, the liquid inlet 11 is connected with a flow pump through a liquid inlet pipe, and the liquid outlet 12 is connected with a container through a liquid outlet pipe. A rubber sealing gasket is arranged at the joint between the lower shell 2 and the base 1.
In the invention, the upper cover body 3 plays a limiting role on the probe, and the safety of the sensor above the probe is protected.
In the invention, the carrier 5 adopts a concave carrier, which is lower than the upper edge of the hollow inner cavity, and the carrier 5 adopts a cylinder structure. The invention uses the concave carrier, which limits the freedom degree of the round sample and ensures the rigidity of the sample, thereby the experiment can be carried out smoothly.
In the invention, the base 1, the lower shell 2 and the upper cover 3 are all made of organic glass polymer materials, and the organic glass polymer material has excellent wear resistance and corrosion resistance, is not easy to damage and has long service life.
The application method of the in-situ hydrogen charging experimental device comprises the following steps:
A. firstly, a liquid inlet 11 on a lower shell 2 is connected with a flow pump through a liquid inlet pipe, and a liquid outlet 12 is connected with a container through a liquid outlet pipe;
B. placing the round sample welded with the lead on a carrier 5, directly injecting the hydrogen charging solution into the lower shell 2 by a syringe through a lead hole 7, and enabling the liquid level to exceed the surface of the sample by 1 millimeter;
C. putting a platinum counter electrode into a hydrogen charging solution through a wire guide 7, and fixing the upper cover body 3 and the lower shell 2 by using a fastening screw 4;
D. connecting a lead and a platinum counter electrode welded on a sample to an electrochemical workstation, and opening the electrochemical workstation according to the current density preset in an experiment;
E. starting a flow pump, wherein the flow pump sends the hydrogen charging solution into the lower shell 2 through a liquid inlet 11, and discharges the hydrogen charging solution into an external container through a liquid outlet 12, and the hydrogen charging solution in the lower shell 2 is continuously circulated;
F. finally, after the liquid level of the hydrogen charging solution is stable, the operation probe enters the needle head test hole 6 for experimental operation.
Example 1
Taking an in-situ hydrogen filling test of 2205 duplex stainless steel in a Hysicron company TI-premier nanoindenter as an example, the specific embodiments thereof are as follows:
1. the liquid inlet 11 on the lower shell 2 is connected with a flow pump through a liquid inlet pipe, and the liquid outlet 12 is connected with a solution collecting container through a liquid outlet pipe;
2. placing a 2205 duplex stainless steel round sample which is ground and polished and welded with a wire into a carrier 5, enabling the wire to pass through a wire guide 7, directly injecting a hydrogen charging solution into a lower shell 2 by using an injector, enabling the liquid level to exceed the surface of the sample by 1 millimeter, wherein the hydrogen charging solution in the example is a mixed solution containing 0.5mol/L sulfuric acid and 1g/L thiourea;
3. putting a platinum counter electrode into a hydrogen charging solution through a wire guide 7, and fixing the upper cover body 3 and the lower shell 2 by using a fastening screw 4;
4. the whole device is fixed on a sample table top of the TI-premier through a screw hole, a lead wire welded to a sample and a platinum counter electrode are connected to an electrochemical workstation, and the TI-premier sample cabin door is closed.
5. Opening an electrochemical workstation according to the current density preset in the experiment, starting a flow pump, feeding the hydrogen charging solution into the lower shell 2 through a liquid inlet 11 by the flow pump, discharging the hydrogen charging solution into an external solution collecting container from a liquid outlet 12, and continuously circulating the hydrogen charging solution in the lower shell 2;
6. the specimen test area was found under a TI-premier light microscope and the machine was adjusted to the appropriate height. The sample stage is moved to bring the probe into the needle test well 6 and the experimental operation is performed after the level of the hydrogen charged solution has stabilized.
FIG. 4 is a diagram of 2205 duplex stainless steel at 10mA/cm 2 Before and after charging, a is before charging, b is after charging for 1 hour, and c is after charging for 5 hours. Experiments can be continuously carried out on line through the device, and the longer the charging time is, the rougher the surface of the sample is. A rough surface will result in greater displacement and lower calculated hardness than a smooth surface.
In conclusion, the device has novel structural design and convenient use, and can perform in-situ hydrogen charging test on the hydrogen charging sample. The invention is suitable for the instruments using probes for measuring such as nano indentation, atomic force microscope and the like.
Claims (2)
1. The utility model provides an in situ hydrogen charging experimental apparatus, includes base (1), lower casing (2) and upper cover body (3), its characterized in that: the longitudinal section of the lower shell (2) is of a convex structure, the lower shell (2) is fixed on the base (1) through a locking bolt, symmetrically arranged through holes are formed in the lower shell (2) and the upper cover body (3), and the upper cover body (3) is fixed on the lower shell (2) through a fastening screw (4); the center of the lower shell (2) is provided with a cylindrical hollow inner cavity, the hollow inner cavity is provided with a carrying platform (5), and the height of the carrying platform (5) is lower than the upper edge of the hollow inner cavity; the center of the upper cover body (3) is provided with a needle head test hole (6), the needle head test hole (6) is arranged right above the carrier (5), the upper cover body (3) is also provided with a wire guide hole (7), a round sample welded with a wire is placed on the carrier (5), and the wire passes through the wire guide hole (7); protrusions (8) are arranged on two opposite sides of the upper protruding portion of the lower shell (2), and grooves (9) matched with the protrusions (8) are arranged on two opposite sides of the upper cover body (3); an outward overflow port (10) is formed in the boss (8); the side wall of the upper bulge of the lower shell (2) is provided with a liquid inlet (11), and the side wall of the opposite side is provided with a liquid outlet (12); a rubber sealing gasket is arranged at the joint between the lower shell (2) and the base (1);
the carrying platform (5) adopts a concave carrying platform, and the carrying platform (5) adopts a cylindrical structure;
the base (1), the lower shell (2) and the upper cover body (3) are all made of organic glass materials.
2. A method for performing an in situ hydrogen charging experiment using an in situ hydrogen charging experimental apparatus as defined in claim 1, wherein:
A. firstly, a liquid inlet (11) on a lower shell (2) is connected with a flow pump through a liquid inlet pipe, and a liquid outlet (12) is connected with a container through a liquid outlet pipe;
B. directly injecting the hydrogen charging solution into the lower shell (2) by using a syringe, so that the liquid level is 1 mm beyond the surface of the sample;
C. putting a platinum counter electrode into a hydrogen charging solution through a wire guide (7), and fixing an upper cover body (3) and a lower shell body (2) by using a fastening bolt;
D. connecting a lead and a platinum counter electrode welded on a sample to an electrochemical workstation, and opening the electrochemical workstation according to the current density preset in an experiment;
E. starting a flow pump, feeding the hydrogen charging solution into the lower shell (2) through a liquid inlet (11), discharging the hydrogen charging solution into an external container from a liquid outlet (12), and continuously circulating the hydrogen charging solution in the lower shell (2);
F. finally, after the liquid level of the hydrogen charging solution is stable, the operation probe enters the needle head test hole (6) for experimental operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555060.2A CN110133090B (en) | 2019-06-25 | 2019-06-25 | In-situ hydrogen charging experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555060.2A CN110133090B (en) | 2019-06-25 | 2019-06-25 | In-situ hydrogen charging experimental device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110133090A CN110133090A (en) | 2019-08-16 |
| CN110133090B true CN110133090B (en) | 2024-01-19 |
Family
ID=67579499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910555060.2A Active CN110133090B (en) | 2019-06-25 | 2019-06-25 | In-situ hydrogen charging experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110133090B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954586B (en) * | 2019-12-17 | 2022-04-26 | 武汉科技大学 | In-situ hydrogen display detection device and detection method |
| CN113514513A (en) * | 2021-07-13 | 2021-10-19 | 太原理工大学 | Temperature-controllable in-situ electrochemical hydrogen charging and testing integrated device |
| CN113884410B (en) * | 2021-09-13 | 2024-07-09 | 浙江大学 | Device for observing hydrogen diffusion process of local tissue in material by using SKPFM |
| CN113884411B (en) * | 2021-09-13 | 2024-07-09 | 浙江大学 | Method for testing hydrogen diffusion coefficient of local tissue in material by using SKPFM |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040051045A (en) * | 2002-12-11 | 2004-06-18 | (주)바이오니아 | The hybridization device for biological sample |
| WO2013187972A1 (en) * | 2012-06-13 | 2013-12-19 | Schmitz Roger William | Environmental conditioning assembly for use in mechanical testing at micron or nano-scales |
| JP2015059785A (en) * | 2013-09-18 | 2015-03-30 | 新日鐵住金株式会社 | Electrochemical nano-indentation tester and electrochemical nano-indentation testing method |
| CN106501109A (en) * | 2016-09-13 | 2017-03-15 | 北京理工大学 | The in-situ nano impression test platform of energy storage material under a kind of electrochemical hot atmosphere |
| CN106769781A (en) * | 2017-01-26 | 2017-05-31 | 武汉科技大学 | A kind of device and application method for testing metal material hydrogen penetrating quality |
| CN210136203U (en) * | 2019-06-25 | 2020-03-10 | 南京工业大学 | In-situ hydrogen charging experimental device |
-
2019
- 2019-06-25 CN CN201910555060.2A patent/CN110133090B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040051045A (en) * | 2002-12-11 | 2004-06-18 | (주)바이오니아 | The hybridization device for biological sample |
| WO2013187972A1 (en) * | 2012-06-13 | 2013-12-19 | Schmitz Roger William | Environmental conditioning assembly for use in mechanical testing at micron or nano-scales |
| JP2015059785A (en) * | 2013-09-18 | 2015-03-30 | 新日鐵住金株式会社 | Electrochemical nano-indentation tester and electrochemical nano-indentation testing method |
| CN106501109A (en) * | 2016-09-13 | 2017-03-15 | 北京理工大学 | The in-situ nano impression test platform of energy storage material under a kind of electrochemical hot atmosphere |
| CN106769781A (en) * | 2017-01-26 | 2017-05-31 | 武汉科技大学 | A kind of device and application method for testing metal material hydrogen penetrating quality |
| CN210136203U (en) * | 2019-06-25 | 2020-03-10 | 南京工业大学 | In-situ hydrogen charging experimental device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110133090A (en) | 2019-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110133090B (en) | In-situ hydrogen charging experimental device | |
| CN108426929B (en) | Electrochemical testing device with detachable and external working electrode for three-electrode system | |
| CN102168298B (en) | Electrolytic corrosion device of metallographic sample for laboratory and electrolytic corrosion method | |
| CN106226167B (en) | Test device for measuring hydrogen brittleness resistance of metal sample under variable prestress condition | |
| CN106153441A (en) | The material fracture toughness test system and method being flushed with hydrogen under environment based on controllable temperature electrochemistry | |
| CN113884410B (en) | Device for observing hydrogen diffusion process of local tissue in material by using SKPFM | |
| CN111735697B (en) | Dynamic hydrogen-charging slow-stretching test device and method for metal rod-shaped sample | |
| CN113884411B (en) | Method for testing hydrogen diffusion coefficient of local tissue in material by using SKPFM | |
| CN110044811B (en) | Device and method for testing low-temperature sulfate corrosion resistance of solid concrete | |
| CN210136203U (en) | In-situ hydrogen charging experimental device | |
| CN113281156A (en) | Material high-strain creep-fatigue coupling test method under low-temperature corrosion environment | |
| CN107966362A (en) | A kind of metal plate-like sample dynamic is flushed with hydrogen tensile stress etching experimental rig | |
| CN109490398B (en) | Double-electrolysis experimental detection device and detection method for enamel steel scale explosion performance | |
| CN210136202U (en) | In-situ hydrogen charging experimental device | |
| CN104651841A (en) | Corrosive liquid and corrosion method for performing metallographic analysis on nitrided steel | |
| CN205562458U (en) | Simple and easy electrochemistry testing arrangement | |
| CN207816682U (en) | A kind of aluminum alloy extrusion section bar microscopic structure prepares metallographic specimen electrode in examining | |
| CN208766061U (en) | Convenient for adjusting the shear Probe and drilling shear of diameter | |
| CN103308371A (en) | Corrosion method for displaying austenitic stainless steel 310S continuous casting dendritic tissue | |
| CN115506005A (en) | Anode-cathode device for on-site metallographic electrolytic corrosion and use method thereof | |
| CN110161105B (en) | In-situ hydrogen charging experimental device | |
| CN207300718U (en) | A kind of metal plate-like sample dynamic is flushed with hydrogen tensile stress etching experimental rig | |
| CN114594350A (en) | Simulation test device for insulation repair under external injection of power cable and method for insulation repair evaluation | |
| CN112748062A (en) | Device and method for detecting hydrogen-induced cracking resistance of metal material | |
| CN111257214A (en) | In-situ electrochemical cell device capable of measuring electrochemical corrosion performance under electromagnetic field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |