CN107860820A - Heat-resisting steel part deterioration appraisal procedure, device and magnetic parameters instrument - Google Patents
Heat-resisting steel part deterioration appraisal procedure, device and magnetic parameters instrument Download PDFInfo
- Publication number
- CN107860820A CN107860820A CN201711318193.5A CN201711318193A CN107860820A CN 107860820 A CN107860820 A CN 107860820A CN 201711318193 A CN201711318193 A CN 201711318193A CN 107860820 A CN107860820 A CN 107860820A
- Authority
- CN
- China
- Prior art keywords
- heat
- steel part
- resisting steel
- micro
- test sample
- 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.)
- Pending
Links
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
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/14—Measuring or plotting hysteresis curves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses a kind of heat-resisting steel part deterioration appraisal procedure, device and magnetic parameters instrument, heat-resisting steel part deteriorates appraisal procedure, including step：A, the database for characterizing magnetic parameter and degradation level matching relationship is obtained；B, the micro-test sample of heat-resisting steel part is obtained；C, the micro-test sample is detected using magnetic parameters instrument, obtains the magnetic parameter of micro-test sample；D, reference database, obtains the degradation level matched with the magnetic parameter of the micro-test sample, finally draws the degradation level of the heat-resisting steel part.Heat-resisting steel part deterioration appraisal procedure can efficiently solve the problem of existing heat-resisting steel part deterioration appraisal procedure cost is high, evaluation cycle is long, the workpiece recovery difficulty after destructive sampling is larger.
Description
Technical field
It is bad more specifically to a kind of heat-resisting steel part the present invention relates to heat resisting steel component capabilities detection technique field
Change appraisal procedure, device and magnetic parameters instrument.
Background technology
High temperature, the workpiece of high pressure operating mode are born largely using heat-resisting steel material making, such as power plant, the high temperature in chemical plant
Pressure piping, pipe fitting, valve etc..As active time extends, the heat-resisting gradual aging of steel part, its main performance degradation mechanism
Including high-temerature creep, heat fatigue and creep-fatigue interaction.
At present, generally use disruptive method (such as pipe cutting, overall cutting) samples to heat-resisting steel workpiece, and passes through length
When high-temerature creep experiment (test period thousands of arrive tens thousand of hours), the means such as short time high temperature tension test are to its performance degradation situation
Assessed.
Other in addition to conduit component bear high temperature, the part of high pressure is generally not allowed destructive sampling, and there is no at present
Effective performance degradation appraisal procedure, such as：Header, valve body, cylinder body etc..
Although workpiece is tested or than clothes by above-mentioned deterioration performance estimating method under approximate military service working condition
Accelerated test is carried out under conditions of labour condition is more harsh, confidence level is higher.But experimentation cost is high, evaluation cycle is long, destroys
Property sampling after workpiece recover difficulty it is larger, the parts such as header, valve body are not suitable in addition to pipeline.
The content of the invention
In view of this, first purpose of the invention is to provide a kind of heat-resisting steel part deterioration appraisal procedure, and this is heat-resisting
Steel part deterioration appraisal procedure can efficiently solve existing heat-resisting steel part deterioration appraisal procedure cost height, evaluation cycle mistake
Workpiece after long, destructive sampling recovers the problem of difficulty is larger.Second object of the present invention is to provide a kind of heat resisting steel portion
Part deteriorates apparatus for evaluating and magnetic parameters instrument.
In order to reach above-mentioned first purpose, the present invention provides following technical scheme：
A kind of heat-resisting steel part deterioration appraisal procedure, including step：
A, the database for characterizing magnetic parameter and degradation level matching relationship is obtained；
B, the micro-test sample of heat-resisting steel part is obtained；
C, the micro-test sample is detected using magnetic parameters instrument, obtains the magnetic parameter of micro-test sample；
D, reference database, obtains the degradation level matched with the magnetic parameter of the micro-test sample, finally draws described
The degradation level of heat-resisting steel part.
Preferably, in above-mentioned heat-resisting steel part deterioration appraisal procedure, the step a is specifically included：
A1, acquisition are respectively at multigroup heat-resisting steel part sample of multiple degradation levels, pass through magnetic parameters instrument
Respectively obtain the magnetic parameter of multigroup heat-resisting steel part sample；
A2, magnetic parameter and the matching incidence relation of degradation level are established, and establish database.
Preferably, in above-mentioned heat-resisting steel part deterioration appraisal procedure, the step c is specially：
The micro-test sample is divided into multiple sheet samples, multiple sheet samples examined using magnetic parameters instrument
Survey, obtain the magnetic parameter of multiple sheet samples.
Preferably, in above-mentioned heat-resisting steel part deterioration appraisal procedure, the micro-test sample is cylindric, and its external diameter is 20-
100mm, thickness axially is >=2mm.
Preferably, in above-mentioned heat-resisting steel part deterioration appraisal procedure, the cylindric micro-test sample is by along described heat-resisting
Steel part wall thickness direction samples to obtain.
Preferably, in above-mentioned heat-resisting steel part deterioration appraisal procedure, the step c is specially：
The micro-test sample is divided into multiple sheet samples axially along, using magnetic parameters instrument to multiple sheets
Sample is detected, and obtains the magnetic parameter of multiple sheet samples.
Preferably, in above-mentioned heat-resisting steel part deterioration appraisal procedure, the magnetic parameter is magnetic coercive force, remanence
The tangent slope of intensity, hysteresis curve envelope size or hysteresis curve.
A kind of heat-resisting steel part deterioration apparatus for evaluating, including：
Part is sampled, for obtaining micro-test sample from heat-resisting steel part；
Magnetic parameters instrument, for obtaining the magnetic parameter of micro-test sample, the magnetic parameters instrument includes probe and set
Two electrodes being placed on the probe, described two electrodes farthest away from the distance between point of other side be 25-45mm；
Storage device, for storing the data of the magnetic parameter with degradation level matching relationship that characterize the micro-test sample
Storehouse.
A kind of magnetic parameters instrument, for obtaining the magnetic parameter of micro-test sample, the magnetic parameters instrument includes probe
With two electrodes being arranged on the probe, described two electrodes farthest away from the distance between point of other side be 25-45mm.
In heat-resisting steel part deterioration appraisal procedure provided by the invention, obtain characterize magnetic parameter and degradation level first
The database of matching relationship, i.e., the degradation level matched with magnetic parameter can be found by database.Then obtain heat-resisting
The micro-test sample of steel part, micro-test sample take can't heat-resisting steel part damage, taking can be by resistance to after micro-test sample
Hot steel part carries out repairing and allows it to be continuing with.Then micro-test sample is detected using magnetic parameters instrument, obtained
The magnetic parameter of micro-test sample.Finally, reference database, the degradation level matched with the magnetic parameter of micro-test sample is obtained, most
The degradation level of heat-resisting steel part is drawn eventually.In this way, when carrying out heat-resisting steel part deterioration assessment, micro-test sample only need to be obtained, is passed through
Detection to micro-test sample obtains the magnetic parameter of micro-test sample, and reference database draws what is matched with the magnetic parameter of micro-test sample
Degradation level.Use heat-resisting steel part deterioration appraisal procedure provided by the invention, it is not necessary to heat-resisting steel part is cut again
The destructions such as pipe, overall cutting sample, and can draw the degradation level of heat-resisting steel part, and heat-resisting steel part recovers after obtaining micro-test sample
Difficulty is small, substantially reduces sample cost.Moreover, assessment cycle is short, method provided by the invention is equally applicable to header, valve body etc.
Part.
In order to reach above-mentioned second purpose, present invention also offers a kind of heat-resisting steel part deterioration apparatus for evaluating and magnetic
Parameter measurement instrument.Heat-resisting the steel part deterioration apparatus for evaluating and magnetic parameters instrument should also have corresponding technique effect, herein
Repeat no more.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart that heat-resisting steel part provided in an embodiment of the present invention deteriorates appraisal procedure；
Fig. 2 is the schematic diagram that heat-resisting steel part provided in an embodiment of the present invention takes micro-test sample；
Fig. 3 is the structural representation of micro-test sample provided in an embodiment of the present invention；
Fig. 4 is the structural representation of multiple sheet samples provided in an embodiment of the present invention；
Fig. 5 is the structural representation of the probe of magnetic parameters instrument provided in an embodiment of the present invention.
In Fig. 2-5：
The heat-resisting steel parts of 1-, 2- micro-test samples, 2a- sheet samples, 3- probes, 4- electrodes.
Embodiment
First purpose of the present invention is that providing a kind of heat-resisting steel part deteriorates appraisal procedure, heat-resisting steel part deterioration
It is long, destructive that appraisal procedure can efficiently solve existing heat-resisting steel part deterioration appraisal procedure cost height, evaluation cycle
Workpiece after sampling recovers the problem of difficulty is larger.Second object of the present invention is to provide a kind of heat-resisting steel part deterioration and assessed
Device and magnetic parameters instrument.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is the flow chart that heat-resisting steel part provided in an embodiment of the present invention deteriorates appraisal procedure, it is wrapped
Include step：
S1, obtain the database for characterizing magnetic parameter and degradation level matching relationship.
Multiple magnetic parameters and the degradation level matched with multiple magnetic parameters are stored with database.Pass through
Reference database can be derived that degradation level corresponding to each magnetic parameter.
S2, the micro-test sample 2 for obtaining heat-resisting steel part 1.
The size of wherein micro-test sample 2 is smaller, after obtaining micro-test sample 2 on heat-resisting steel part 1, by heat-resisting steel part
1 repairing can be continuing with heat resisting steel part 1, i.e., it can't be caused after micro-test sample 2 being taken on heat-resisting steel part 1
The destruction of irreparability.Specifically, Mechanical Method can be used to obtain micro-test sample 2, or micro-test sample is obtained using magnetic sleeve drill tools
2, herein and it is not especially limited.
S3, using magnetic parameters instrument micro-test sample 2 is detected, obtain the magnetic parameter of micro-test sample 2.
The micro-test sample 2 obtained in step S2 is detected using magnetic parameters instrument in the step, finally gives step
The magnetic parameter of the micro-test sample 2 obtained in S2.
S4, reference database, obtain the degradation level matched with the magnetic parameter of micro-test sample 2, finally draw described resistance to
The degradation level of hot steel part 1.
I.e. according to the magnetic parameter of the micro-test sample 2 obtained in step S3, reference database, draw with being obtained in step S3
Micro-test sample 2 magnetic parameter matching degradation level, then be the degradation level of heat-resisting steel part 1.
In this way, when carrying out the heat-resisting deterioration of steel part 1 assessment, micro-test sample 2 only need to be obtained, passes through detecting to micro-test sample 2
To the magnetic parameter of micro-test sample 2, reference database draws the degradation level matched with the magnetic parameter of micro-test sample 2.
Appraisal procedure is deteriorated using heat-resisting steel part 1 provided by the invention, it is not necessary to pipe cutting, overall cutting are carried out to heat-resisting steel part 1 again
Sampling Deng destruction, the degradation level of heat-resisting steel part 1 can be drawn, the heat-resisting recovery of steel part 1 difficulty is small after obtaining micro-test sample 2,
Substantially reduce sample cost.Moreover, assessment cycle is short, method provided by the invention is equally applicable to the parts such as header, valve body.
In above-mentioned heat-resisting steel part deterioration appraisal procedure, the step S1 is specifically included：
S11, acquisition are respectively at multigroup heat-resisting steel part sample of multiple degradation levels, are distinguished by magnetic parameters instrument
Obtain the magnetic parameter of multigroup heat-resisting steel part sample；
S12, magnetic parameter and the matching incidence relation of degradation level are established, and establish database.
In the step, multiple magnetic parameter scopes can be specifically set, each magnetic parameter scope has the bad of matching
Change grade.When the magnetic parameter of micro-test sample 2 is in the range of a certain magnetic parameter, then micro-test sample 2 is in magnetic parameter
The degradation level of commensurate in scope.
Wherein it is possible to when implementing long to new heat-resisting steel part 1 high-temerature creep experiment or heat fatigue simulated test draw it is more
Multigroup heat-resisting steel part sample of individual degradation level.
In another embodiment, step S3 is specially：Micro-test sample 2 is divided into multiple sheet sample 2a, surveyed using magnetic parameter
Amount instrument detects to multiple sheet sample 2a, obtains multiple sheet sample 2a magnetic parameter.
It can so realize and magnetic parameter detection is carried out to the heat-resisting different parts of steel part 1, to realize to heat-resisting steel part 1 not
Deterioration assessment is carried out with position, draws the magnetic parameter of the heat-resisting different parts of steel part 1.
Preferably, micro-test sample 2 can be cylindric, and its external diameter is 20mm-100mm, thickness >=2mm axially.
Further, cylindric micro-test sample 2 can sample to obtain by the direction along the heat-resisting wall thickness of steel part 1.Certainly, micro-test sample 2
It can also be other shapes, be not limited thereto.
Can be specially in step S3：Micro-test sample 2 is divided into multiple sheet sample 2a axially along, surveyed using magnetic parameter
Amount instrument detects to multiple sheet sample 2a, obtains multiple sheet sample 2a magnetic parameter.
When being layered to micro-test sample 2, multiple sheet sample 2a can be divided into along the axial direction of cylindric micro-test sample 2,
And then realize that the deterioration to different depth position of the heat-resisting steel part 1 along wall thickness direction is assessed.
Preferably, above-mentioned magnetic parameter can be magnetic coercive force, remanence strength, hysteresis curve envelope size and magnetic
One or more in the tangent slope of hysteresis curves, are not limited thereto.
Appraisal procedure is deteriorated based on the heat-resisting steel part provided in above-described embodiment, present invention also offers a kind of heat resisting steel
Part deteriorates apparatus for evaluating, and the heat-resisting steel part deterioration apparatus for evaluating includes sampling part, magnetic parameters instrument and storage device.
Wherein, sample part to be used to obtain micro-test sample 2 from heat-resisting steel part 1, it can be that magnetic sleeve bores specifically to sample part.
Magnetic parameters instrument is used for the magnetic parameter for obtaining micro-test sample 2, and magnetic parameters instrument includes probe 3 and is arranged on probe 3
Two electrodes 4, two electrodes 4 are 25-45mm farthest away from the distance between point of other side, can so ensure that magnetic parameter is surveyed
Amount instrument adapts to a variety of micro-test samples 2.Two electrodes 4 can be specially two magnetic poles, i.e. S poles and N poles.Storage device is used to store
The magnetic parameter of micro-test sample 2 and the database of degradation level matching relationship are characterized, storage device can be specially chip, USB flash disk
Or paper document.
The embodiment of the present invention additionally provides a kind of magnetic parameters instrument, and it is used for the magnetic parameter for obtaining micro-test sample 2, weight
Point is, magnetic parameters instrument includes probe 3 and two electrodes 4 being arranged on the probe 3, two electrodes 4 farthest away from
The distance between point of other side is 25-45mm.Micro-test sample 2 is examined in this way, the size between positive pole and negative pole disclosure satisfy that
The requirement of survey.Two electrodes 4 can be specially two magnetic poles, i.e. S poles and N poles.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of heat-resisting steel part deterioration appraisal procedure, it is characterised in that including step：
A, the database for characterizing magnetic parameter and degradation level matching relationship is obtained；
B, the micro-test sample (2) of heat-resisting steel part is obtained；
C, the micro-test sample (2) is detected using magnetic parameters instrument, obtains the magnetic parameter of micro-test sample (2)；
D, reference database, the degradation level matched with the magnetic parameter of the micro-test sample (2) is obtained, finally drawn described resistance to
The degradation level of hot steel part.
2. heat-resisting steel part deterioration appraisal procedure according to claim 1, it is characterised in that the step a is specifically included：
A1, acquisition are respectively at multigroup heat-resisting steel part sample of multiple degradation levels, are distinguished by magnetic parameters instrument
Obtain the magnetic parameter of multigroup heat-resisting steel part sample；
A2, magnetic parameter and the matching incidence relation of degradation level are established, and establish database.
3. heat-resisting steel part deterioration appraisal procedure according to claim 1, it is characterised in that the step c is specially：
The micro-test sample (2) is divided into multiple sheet samples (2a), using magnetic parameters instrument to multiple sheet samples
(2a) is detected, and obtains multiple sheet samples (2a) magnetic parameter.
4. heat-resisting steel part deterioration appraisal procedure according to claim 1, it is characterised in that the micro-test sample (2) is circle
Column, and its external diameter is 20-100mm, thickness axially is >=2mm.
5. heat-resisting steel part deterioration appraisal procedure according to claim 4, it is characterised in that the cylindric micro-test sample
(2) by sampling to obtain along the heat resisting steel part wall thickness direction.
6. heat-resisting steel part deterioration appraisal procedure according to claim 4, it is characterised in that the step c is specially：
The micro-test sample (2) is divided into multiple sheet samples (2a) axially along, using magnetic parameters instrument to multiple described
Sheet sample (2a) is detected, and obtains multiple sheet samples (2a) magnetic parameter.
7. heat-resisting steel part deterioration appraisal procedure according to claim 1, it is characterised in that the magnetic parameter is magnetic
Coercivity, remanence strength, the tangent slope of hysteresis curve envelope size or hysteresis curve.
A kind of 8. heat-resisting steel part deterioration apparatus for evaluating, it is characterised in that including：
Part is sampled, for obtaining micro-test sample (2) from heat-resisting steel part；
Magnetic parameters instrument, for obtaining the magnetic parameter of micro-test sample (2), the magnetic parameters instrument include probe (3) and
Two electrodes (4) being arranged on the probe (3), described two electrodes (4) are farthest away from the distance between point of other side
25-45mm；
Storage device, for storing the database of the magnetic parameter with degradation level matching relationship that characterize the micro-test sample (2).
9. a kind of magnetic parameters instrument, it is characterised in that for obtaining the magnetic parameter of micro-test sample (2), the magnetic parameter is surveyed
Amount instrument includes probe (3) and is arranged at two electrodes (4) popped one's head on (3), described two electrodes (4) farthest away from other side
The distance between point be 25-45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711318193.5A CN107860820A (en) | 2017-12-12 | 2017-12-12 | Heat-resisting steel part deterioration appraisal procedure, device and magnetic parameters instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711318193.5A CN107860820A (en) | 2017-12-12 | 2017-12-12 | Heat-resisting steel part deterioration appraisal procedure, device and magnetic parameters instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107860820A true CN107860820A (en) | 2018-03-30 |
Family
ID=61705879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711318193.5A Pending CN107860820A (en) | 2017-12-12 | 2017-12-12 | Heat-resisting steel part deterioration appraisal procedure, device and magnetic parameters instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107860820A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791880A (en) * | 2018-05-04 | 2018-11-13 | 国电锅炉压力容器检验中心 | A kind of pressure vessel inspection unmanned plane |
| CN113189199A (en) * | 2021-03-30 | 2021-07-30 | 国能锅炉压力容器检验有限公司 | Nonlinear ultrasonic detection grading evaluation method for heat-resistant steel part performance degradation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278948A (en) * | 1988-09-14 | 1990-03-19 | Hitachi Ltd | Device and method for inspecting deterioration damage of metallic material |
| JPH0713625B2 (en) * | 1987-12-04 | 1995-02-15 | 株式会社日立製作所 | Degradation detection method and device |
| JP2001141700A (en) * | 1999-11-11 | 2001-05-25 | Osaka Gas Co Ltd | Nondestructive inspection method |
| US20040140020A1 (en) * | 2002-12-19 | 2004-07-22 | Seiki Takahashi | Nondestructive evaluating method for aged deterioration in austenitic stainless steel |
| CN103439473A (en) * | 2013-07-15 | 2013-12-11 | 河北省电力建设调整试验所 | Assessment method for state of heating surface of 12Cr1MoV steel |
| CN207528680U (en) * | 2017-12-12 | 2018-06-22 | 国电锅炉压力容器检验中心 | Heat-resisting steel part deterioration apparatus for evaluating and magnetic parameters instrument |
-
2017
- 2017-12-12 CN CN201711318193.5A patent/CN107860820A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0713625B2 (en) * | 1987-12-04 | 1995-02-15 | 株式会社日立製作所 | Degradation detection method and device |
| JPH0278948A (en) * | 1988-09-14 | 1990-03-19 | Hitachi Ltd | Device and method for inspecting deterioration damage of metallic material |
| JP2001141700A (en) * | 1999-11-11 | 2001-05-25 | Osaka Gas Co Ltd | Nondestructive inspection method |
| US20040140020A1 (en) * | 2002-12-19 | 2004-07-22 | Seiki Takahashi | Nondestructive evaluating method for aged deterioration in austenitic stainless steel |
| CN103439473A (en) * | 2013-07-15 | 2013-12-11 | 河北省电力建设调整试验所 | Assessment method for state of heating surface of 12Cr1MoV steel |
| CN207528680U (en) * | 2017-12-12 | 2018-06-22 | 国电锅炉压力容器检验中心 | Heat-resisting steel part deterioration apparatus for evaluating and magnetic parameters instrument |
Non-Patent Citations (2)
| Title |
|---|
| 周超 等: "基于微创技术的P92 材料高温拉伸试验研究", 《热加工工艺》, vol. 46, no. 16, pages 2 * |
| 岳增武 等: "磁性法评价奥氏体耐热钢的材质劣化", vol. 38, no. 12, pages 33 - 35 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791880A (en) * | 2018-05-04 | 2018-11-13 | 国电锅炉压力容器检验中心 | A kind of pressure vessel inspection unmanned plane |
| CN113189199A (en) * | 2021-03-30 | 2021-07-30 | 国能锅炉压力容器检验有限公司 | Nonlinear ultrasonic detection grading evaluation method for heat-resistant steel part performance degradation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108152133A (en) | A kind of heat-resisting steel part deterioration appraisal procedure | |
| CN103760243A (en) | Microcrack nondestructive testing device and method | |
| KR101541978B1 (en) | Apparatus for detectng the tube wall thinning and method thereof | |
| CN103969176A (en) | Method for testing seawater corrosion of low-alloy steel under stress state | |
| CN101300482B (en) | Method for measuring S/N ratio in eddy current scratch on inner surface of tube | |
| CN102680569A (en) | Pulsed eddy current pipeline inspection system and method | |
| CN100573181C (en) | Utilize the method for ferromagnetic materials surface stray magnetic field signal monitoring fatigue damage | |
| CN104266579A (en) | Method for extracting signal characteristic quantity for carrying out impulse eddy current detection on ferromagnetic component | |
| CN108195931B (en) | The spot probe and visualization quantitative evaluating method of metal component damage check | |
| CN103512483B (en) | Overhead pipe wall thickness corrosion scanning and detecting system | |
| CN102706750A (en) | High-temperature high-pressure constant load stress corrosion experiment method and device | |
| CN107860820A (en) | Heat-resisting steel part deterioration appraisal procedure, device and magnetic parameters instrument | |
| CN103954512A (en) | Device and method for testing breaking tenacity of compact tension specimen in low-temperature environment | |
| CN105698012A (en) | Pipe flaw guided circumferential wave nondestructive testing method based on transverse-wave straight probes | |
| US10048225B2 (en) | Apparatus and method for inspection of tubes in a boiler | |
| CN106644773A (en) | Impact performance testing device for materials | |
| CN101799313A (en) | Lifting force detecting method for accumulating amount of oxide scale in austenitic stainless steel elbow pipe of boiler | |
| CN103954691A (en) | Nondestructive testing method for material component fraction | |
| CN102520063B (en) | In-service testing and evaluating method and system of coiled tubing | |
| CN207528680U (en) | Heat-resisting steel part deterioration apparatus for evaluating and magnetic parameters instrument | |
| CN112836307A (en) | Method for acquiring fracture toughness of service pipeline steel through small punch test and application of method | |
| Tyson et al. | Elastic compliance of single-edge-notched tension SE (T)(or SENT) specimens | |
| CN108107111A (en) | A kind of heat-resisting steel part nonlinear ultrasonic detection method | |
| CN110749391A (en) | Cutter residual stress testing system and method based on magnetoacoustic emission principle | |
| CN201548521U (en) | Microcrack field magnetic memory testing device for drill pipe |
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 |