WO2016051558A1 - 高クロム鋼管の余寿命を推定する余寿命推定方法 - Google Patents
高クロム鋼管の余寿命を推定する余寿命推定方法 Download PDFInfo
- Publication number
- WO2016051558A1 WO2016051558A1 PCT/JP2014/076285 JP2014076285W WO2016051558A1 WO 2016051558 A1 WO2016051558 A1 WO 2016051558A1 JP 2014076285 W JP2014076285 W JP 2014076285W WO 2016051558 A1 WO2016051558 A1 WO 2016051558A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- strain
- remaining life
- steel pipe
- chromium steel
- high chromium
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
- G01N2203/0212—Theories, calculations
- G01N2203/0218—Calculations based on experimental data
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0296—Welds
Definitions
- the present invention relates to a remaining life estimation method for estimating the remaining life of a high chromium steel pipe that circulates a high-temperature and high-pressure fluid (for example, power steam) used in a boiler or the like.
- a high-temperature and high-pressure fluid for example, power steam
- Steam pipes are used in power plant boilers and steam turbines.
- high-temperature and high-pressure steam having a temperature of 280 ° C. or higher and a pressure of 6 Mpa or higher is used as the power steam flowing in the steam pipe.
- steam having higher temperature and pressure tends to be used to improve power generation efficiency.
- piping for high-temperature and high-pressure fluid such as steam piping is exposed to high temperature and pressure for a long time, it is subject to creep fatigue due to thermal stress.
- high chrome steel such as 9 chrome steel and 12 chrome steel (chromium molybdenum steel having a higher chromium content than a general one) is preferably used for the piping.
- the pipe is integrated by bending a plate-shaped base member made of high chromium steel into a circular shape and welding the base members together.
- a high chromium steel weld is difficult to cause cracks and other damage until the end of its life, and it is difficult to estimate the remaining life.
- the remaining life is diagnosed (estimated) using creep elongation and creep strain. Further, in the method described in Patent Document 2, the constant in the Monk Mungrant method is obtained using a steel pipe sample simulating a high chromium steel pipe.
- the remaining life evaluation by the Monk Mungrant method enables early diagnosis of remaining life. And since the method described in patent document 2 has calculated
- the constant value is extremely important in the remaining life evaluation by the Monkuman Grant method.
- the present invention has been made in view of such circumstances, and an object thereof is to accurately determine the value of a constant used in the Monkuman Grant method.
- the present invention is a remaining life estimation method for estimating the remaining life of a high chromium steel pipe that is integrated by welding base members made of high chromium steel and in which a high temperature and high pressure fluid flows.
- a sensor attached to the base member on both sides sandwiching the welding material on the outer surface by measuring the distance between two points on the outer surface, a strain measuring step for measuring strain on the steel pipe surface, From the strain information recording step of recording the strain information indicating the strain on the tube surface a plurality of times in association with the time information indicating the measurement time point, a plurality of sets of the strain information and the time information, and the constant, the high chromium steel pipe And a remaining life estimating step of estimating the remaining life of the first and second lifespans.
- the constants used in the Monkuman Grant method are obtained from the uniaxial fracture ductility using the first coefficient to the third coefficient. Can do.
- a pedestal joined to one of the base members sandwiching the welding material, a reflector joined to the other base member, and detachable from the pedestal The distance between two points on the outer surface of the high chromium steel pipe can be measured using a laser displacement meter attached and irradiating a laser beam toward the reflecting plate and receiving reflected light from the reflecting plate. preferable. In this method, it is possible to realize measurement with high accuracy using a laser displacement meter.
- the remaining life estimation method in the remaining life estimation step, the remaining life of the high chromium steel pipe is estimated from a plurality of sets of the strain information, the time information, and the constant, and the estimated remaining life is at the end of life.
- the end of life is estimated by the Monkuman Grant method
- the remaining life is calculated by the ⁇ method, so that the remaining life estimation accuracy at the end of life can be improved.
- this remaining life estimation method first, in a creep acceleration test (S1), measurement is performed with a sample of a high chromium steel pipe (described later). That is, the sample is exposed to the test environment at the test temperature and the test pressure, and heating and pressurization of the sample are stopped every time a specified time elapses, and strain and creep voids are measured. And the constant, L parameter, etc. which are used with the Monkuman Grant method are acquired from the obtained measured value. Therefore, this creep acceleration test corresponds to a constant acquisition step.
- the pedestal and the reflector are attached to the high chromium steel pipe to be measured.
- this pedestal is for detachably attaching the laser displacement meter.
- the reflector is for reflecting the laser beam emitted from the laser displacement meter toward the laser displacement meter.
- step S5a the distance of a predetermined section in the high chromium steel pipe at the regular inspection time is measured by a laser displacement meter attached to the pedestal. The measured distance information is recorded together with the measurement date information. The distance measured in this step represents the strain in the high chromium steel pipe. For this reason, the strain acquisition step of step S5a corresponds to the strain measurement step and strain information recording step according to the present invention.
- the void measurement step of step S5b creep voids formed near the welded portion of the high chromium steel pipe are measured. The measurement results (creep void position, area, number, etc.) are recorded together with time information.
- step S5c the ultrasonic inspection by the phased array ultrasonic inspection device is performed on the boundary portion between the base member and the welding material in the high chromium steel pipe. And the measurement results (height, length, position, etc. of the scratch) are recorded together with the time information.
- the remaining life estimation step (S6) first, the remaining life of the high chromium steel pipe is estimated in accordance with the Monkuman Grant method. In that case, the constant acquired by the creep promotion test of step S1, and a plurality of sets of strain information and time information are used.
- the remaining life estimated in accordance with the Monk Mungrant method indicates the end of life of the high chromium steel pipe
- the remaining life estimation based on the ⁇ method is performed. That is, strain-strain rate data (see FIG. 6) in which strain and strain rate are associated is used, and the remaining life is calculated by the ⁇ method.
- the remaining life estimated by the Monkuman Grant method does not indicate the end of life of the high chromium steel pipe, the L parameter, the void number density, and the information on the flaws were obtained by applying to the master curve.
- the remaining life is estimated based on the ⁇ method.
- the remaining life estimated in the remaining life estimation step is notified. For example, it is displayed on a display of a computer system or printed on paper.
- the remaining life after the correction is notified together with information (message or the like) indicating the end of life.
- step S4 If it is determined in step S4 that it is not the periodic inspection time, or if the remaining life is notified in step S7, it is determined whether or not the replacement time of the high chromium steel pipe has arrived (S8), and the replacement time. Has arrived, the high chromium steel pipe is replaced with a new one in the replacement step (S9). Thereafter, in step S2, the processes after the pedestal mounting process are repeatedly performed. On the other hand, if the replacement time has not come, a determination is made in step S4 as to whether the periodic inspection time has come.
- a sample of high chromium steel pipe is used. This sample is used for circulation of high-temperature and high-pressure steam in a power generation facility, cut out from the replaced steam pipe, and the use time until replacement is known. Then, as shown in FIGS. 2A and 2B, the sample 1 is cut out so that the base member 3 is located on both sides of the welding material 2. That is, the base member 3 is cut out so that the portion of the base member 3 has a substantially rectangular shape in plan view, and the welding material 2 and the heat affected zone 4 have a prismatic shape. Further, metal support portions 5 are welded to the edge portions of the respective base members 3 on the side opposite to the welding material 2. 2A and 2B, a member denoted by reference numeral 6 is a welding material for welding the support portion 5 and the base member 3.
- a base 7 is welded to the surface of the base member 3 on one side with the welding material 2 interposed therebetween, and a reflector 8 is welded to the surface of the base member 3 on the other side.
- the pedestal 7 is for detachably attaching the laser displacement meter 9 and is made of the same metal material as the pedestal 17 welded to the target high chromium steel in the pedestal attachment step (S2) and has the same shape. It is said that.
- the reflection plate 8 is a metal plate material for reflecting the laser beam LX emitted from the laser displacement meter 9 toward the laser displacement meter 9.
- the reflecting plate 8 is also made of the same metal material as the reflecting plate 18 to be welded in the pedestal mounting step and has the same shape.
- the distance W between the pedestal 7 (laser displacement meter 9) and the reflecting plate 8 is set to a specified value, and is set to the same value in the pedestal mounting step described later.
- the measurement at the start of the acceleration test is performed.
- a laser displacement meter 9 is attached to the pedestal 7, and the distance is measured for a predetermined section up to the reflecting plate 8.
- the sample 1 is also measured for creep voids and scratches generated inside.
- the creep void is measured by, for example, collecting a replica on the outer surface of the sample 1 and observing the replica with a microscope.
- the sample 1 is heated and pressurized.
- a sample is arrange
- the sample 1 is heated and pressurized again. Also here, the sample 1 in a state where a tensile force of a predetermined stress is applied is placed in the furnace, and then the inside of the furnace is adjusted to a predetermined temperature. If the specified time is maintained in this state, the second halfway stop is performed, and the measurement value at the time of the second halfway stop is recorded together with the elapsed time information as in the first time. Thereafter, heating, pressurization, and measurement on the sample 1 are repeatedly performed until the sample 1 is broken. As a result, the measured value at the third and subsequent breaks is recorded.
- a constant used in the Monkuman Grant method that is, a constant indicating the product of the strain rate and the break time is calculated. As shown in Expression (1), this constant is calculated using the uniaxial fracture ductility and the first to third coefficients.
- Constant X uniaxial fracture ductility CR x first factor x second factor x third factor (1)
- the uniaxial fracture ductility is obtained by measurement in a creep acceleration test.
- the first coefficient is a coefficient for converting a uniaxial fracture ductility into a multiaxial fracture ductility.
- the second coefficient is a coefficient for correcting the consumption life of the sample 1.
- the third coefficient is a coefficient for correcting the measured pressure to the evaluation pressure.
- FIG. 3 is a diagram for explaining the relationship between the creep life consumption rate (t / tr) and the strain in the creep acceleration test, in which the horizontal axis indicates the creep life consumption rate of sample 1 and the vertical axis indicates the strain. Show.
- the creep life consumption rate is 0 at the start of the accelerated test and 1 at the break.
- the strain is calculated based on the distance at the start of the accelerated test.
- a set of strain and creep life consumption rate is linearly approximated, and CR [%] is obtained as the fracture ductility.
- the first coefficient is a coefficient for converting the uniaxial fracture ductility into the multiaxial fracture ductility as described above. This first coefficient is calculated based on the Mises equivalent stress and the hydrostatic pressure stress, for example, 0.5.
- the second coefficient is a coefficient for correcting the consumption life of the sample 1 as described above.
- This second coefficient is determined on the basis of the actual use time in which the high chromium steel pipe used as the basis of Sample 1 was actually used and the test time (time from the start of the test to breakage) in this accelerated test.
- the third coefficient is a coefficient for correcting the measured pressure to the evaluation pressure as described above. This third coefficient is calculated from the relationship between the test stress and the limit strain.
- FIG. 4 is a diagram showing the relationship between the test stress and the limit strain.
- the horizontal axis represents test stress [MPa]
- the horizontal axis represents critical strain [%].
- Each point indicated by the upward triangle symbol is a measurement point of 9Cr steel, and each point indicated by a downward triangle symbol is a measurement point of 12Cr steel.
- FIG. 5 is an example of the relationship (master curve) between the product of the usage time and the creep strain rate (t ⁇ ⁇ ′ min ) and the creep life consumption rate (t / tr).
- the product (t ⁇ ⁇ ′ min ) of the use time and the creep strain rate when the creep life consumption rate is 1 corresponds to the constant X.
- the ⁇ method is a law that the product of the slope ( ⁇ ) of the creep strain rate, the creep strain rate, and the remaining life is always constant (constant). For this reason, by using two or more sets of creep strain rate information, the constant of the ⁇ method can be deleted and the remaining life can be estimated.
- the slope of the creep strain rate with respect to the strain is used. For this reason, as shown in FIG. 6, the horizontal axis represents the strain, the vertical axis represents the creep strain rate, and the plot is obtained to obtain the inclination.
- a master curve of L parameter (void connection density parameter) and void number density is also created based on the information of the creep void obtained by measurement.
- a master curve of the flaw height (depth) is also created based on the flaw information obtained by the measurement.
- the pedestal mounting step (S2) will be described.
- the pedestal 17 and the reflector 18 are joined to the high chromium steel pipe 11 to be measured.
- This pedestal 17 is for detachably attaching the laser displacement meter 9 as described in the creep promotion test in step S1.
- the reflection plate 18 is a metal plate material for reflecting the laser beam LX irradiated from the laser displacement meter 9 toward the laser displacement meter 9.
- the base 17 is joined by welding to one base member 13 sandwiching the welding material 12, as shown in FIG.
- the reflector 18 is joined to the other base member 3 sandwiching the welding material 2 by welding. That is, the reflection plate 18 and the laser displacement meter 9 attached to the pedestal 17 are attached to the base members 13 and 13 on both sides of the welding material 12. At that time, the distance W of the predetermined section between the laser displacement meter 9 and the reflecting plate 18 is made equal to the distance W of the predetermined section in the sample 1.
- the remaining life estimation step (S6) the remaining life of the high chromium steel pipe 11 is estimated in accordance with the Monkuman Grant method. In addition, the remaining lifetime based on the L parameter, the void number density, and the information on the scratches is also estimated. When at least one of the remaining lives estimated by the respective methods indicates the end of life of the high chromium steel pipe 11, the remaining life estimation based on the ⁇ method is performed.
- the remaining life is notified in the notification step (S7). Based on the notified remaining life, the replacement time of the high chromium steel pipe 11 is determined (S8). If it is the replacement time, the high chromium steel pipe 11 is replaced with a new one in the replacement step (S9).
- the first coefficient for converting to multiaxial fracture ductility, the second coefficient for correcting the consumption life of the sample 1, and the third coefficient for correcting the measurement pressure to the evaluation pressure are multiplied.
- the constant X indicating the product of the strain rate and the rupture time in the Monkuman Grant method is obtained, the constant X can be determined with high accuracy.
- step S5 the bases 7 and 17 joined to the base members 3 and 13 sandwiching the welding materials 2 and 12, and the other The reflectors 8 and 18 joined to the base members 3 and 13 and the pedestals 7 and 17 are detachably attached.
- the laser beams LX are radiated toward the reflectors 8 and 18, and the reflectors 8 and 18 Since the distance between two points on the outer surface of the sample 1 and the high chromium steel pipe 11 is measured using the laser displacement meter 9 that receives the reflected light, the measurement with high accuracy by the laser displacement meter 9 can be realized.
- the remaining life of the high chromium steel pipe 11 is estimated from a plurality of sets of strain information and time information and a constant, and when the estimated remaining life is a period corresponding to the end of life, Since the remaining life is calculated by the ⁇ method using strain-strain rate data in which strain and strain rate are associated with each other from multiple sets of strain information and time information, the estimation accuracy of the remaining life at the end of life is improved. Can do.
- the steam for power is exemplified in the above-described embodiment, but the present invention can be similarly applied to any high-chromium steel pipe through which a fluid having a temperature and pressure equivalent to that of power steam is circulated.
- the laser displacement meter 9 has been exemplified in the above-described embodiment, but other apparatuses may be used as long as the surface strain can be measured.
- a resistance type strain sensor or a capacitance type strain sensor may be used.
- the sensor is attached to the base member 13 on both sides sandwiching the welding material 12.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
Description
2…溶接材
3…母部材
4…熱影響部
5…支持部
6…溶接材
7…台座
8…反射板
9…レーザー変位計
11…高クロム鋼管
12…溶接材
13…母部材
17…台座
18…反射板
LX…レーザー光線
W…台座(レーザー変位計)と反射板の距離
Claims (3)
- 高クロム鋼からなる母部材同士を溶接することで一体化され、高温高圧流体を流通させる高クロム鋼管の余寿命を推定する余寿命推定方法であって、
前記高クロム鋼管のサンプルから取得された単軸での破断延性に対し、多軸での破断延性に変換するための第1係数と、前記サンプルの消費寿命を補正するための第2係数と、測定圧力を評価圧力に補正するための第3係数とを乗じることで、モンクマングラント法におけるひずみ速度と破断時間との積を示す定数を取得する定数取得工程と、
前記高クロム鋼管の外表面であって溶接材を挟む両側の前記母部材に取り付けられたセンサを用い、前記外表面における2点間の距離を測定することで、鋼管表面のひずみを測定するひずみ測定工程と、
前記鋼管表面のひずみを示すひずみ情報を、測定時点を示す時刻情報と対応付けて複数回記録するひずみ情報記録工程と、
複数組の前記ひずみ情報及び前記時刻情報と、前記定数とから前記高クロム鋼管の余寿命を推定する余寿命推定工程とを行うことを特徴とする余寿命推定方法。 - 前記ひずみ測定工程では、前記溶接材を挟む一方の前記母部材に接合された台座と、他方の前記母部材に接合された反射板と、前記台座に着脱可能に取り付けられ、前記反射板に向けてレーザー光線を照射するとともに、前記反射板からの反射光を受光するレーザー変位計とを用い、前記高クロム鋼管の外表面における2点間の距離を測定することを特徴とする請求項1に記載の余寿命推定方法。
- 前記余寿命推定工程では、複数組の前記ひずみ情報及び前記時刻情報と前記定数とから前記高クロム鋼管の余寿命を推定するとともに、推定した余寿命が寿命末期に相当する期間の場合に、複数組の前記ひずみ情報及び前記時刻情報からひずみとひずみ速度とが対応付けられたひずみ―ひずみ速度データを用い、Ω法によって余寿命を算出することを特徴とする請求項1又は2に記載の余寿命推定方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES14903099T ES2817932T3 (es) | 2014-10-01 | 2014-10-01 | Procedimiento de estimación de vida restante para estimar la vida restante de una tubería de acero con alto contenido de cromo |
US15/514,383 US10295456B2 (en) | 2014-10-01 | 2014-10-01 | Remaining life estimation method for estimating remaining life of high-chromium steel pipe |
JP2015532201A JP5801520B1 (ja) | 2014-10-01 | 2014-10-01 | 高クロム鋼管の余寿命を推定する余寿命推定方法 |
PCT/JP2014/076285 WO2016051558A1 (ja) | 2014-10-01 | 2014-10-01 | 高クロム鋼管の余寿命を推定する余寿命推定方法 |
EP14903099.1A EP3203211B1 (en) | 2014-10-01 | 2014-10-01 | Remaining life estimation method for estimating remaining life of high-chromium steel pipe |
CA2962544A CA2962544C (en) | 2014-10-01 | 2014-10-01 | Remaining life estimation method for estimating remaining life of high-chromium steel pipe |
PH12017500578A PH12017500578B1 (en) | 2014-10-01 | 2017-03-28 | Remaining life estimation method for estimating remaining life of high-chromium steel pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/076285 WO2016051558A1 (ja) | 2014-10-01 | 2014-10-01 | 高クロム鋼管の余寿命を推定する余寿命推定方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/514,383 Continuation US10295456B2 (en) | 2014-10-01 | 2014-10-01 | Remaining life estimation method for estimating remaining life of high-chromium steel pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016051558A1 true WO2016051558A1 (ja) | 2016-04-07 |
Family
ID=54477725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/076285 WO2016051558A1 (ja) | 2014-10-01 | 2014-10-01 | 高クロム鋼管の余寿命を推定する余寿命推定方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US10295456B2 (ja) |
EP (1) | EP3203211B1 (ja) |
JP (1) | JP5801520B1 (ja) |
CA (1) | CA2962544C (ja) |
ES (1) | ES2817932T3 (ja) |
PH (1) | PH12017500578B1 (ja) |
WO (1) | WO2016051558A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019188887A1 (ja) * | 2018-03-28 | 2019-10-03 | 三菱日立パワーシステムズ株式会社 | 配管の余寿命評価方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019517676A (ja) * | 2016-06-10 | 2019-06-24 | マグナ エクステリアーズ インコーポレイテッド | 微細発泡熱可塑性複合材の溶着部の剪断性能を試験するための装置 |
CN109288384B (zh) * | 2018-09-12 | 2020-10-30 | 佛山市云米电器科技有限公司 | 一种用于蒸汽发生器的水量预测方法及烹饪装置 |
CN110967245B (zh) * | 2018-09-28 | 2023-01-20 | 中国航发商用航空发动机有限责任公司 | 材料蠕变时间及寿命实验方法以及实验系统 |
WO2021038711A1 (ja) * | 2019-08-27 | 2021-03-04 | 日本電信電話株式会社 | 内部鋼材の破断時間推定装置とその方法 |
WO2021068148A1 (zh) * | 2019-10-10 | 2021-04-15 | 华东理工大学 | 蠕变强度分析考核方法与计算机设备 |
CN111521493B (zh) * | 2020-06-10 | 2022-08-16 | 太原理工大学 | 一种同时多级加载的高温三轴岩石蠕变试验机及使用方法 |
CN113252465B (zh) * | 2021-05-20 | 2022-07-01 | 天津理工大学 | 一种基于m-h法的耐热钢蠕变寿命预测方法 |
CN115982958B (zh) * | 2022-12-07 | 2023-10-13 | 南京工业大学 | 一种基于工程损伤力学的材料蠕变疲劳寿命预测方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009020074A (ja) * | 2007-07-13 | 2009-01-29 | Chugoku Electric Power Co Inc:The | 余寿命推定システム、余寿命推定方法、コンピュータプログラム、記録媒体 |
JP4638621B2 (ja) * | 2001-06-19 | 2011-02-23 | 九州電力株式会社 | クリープひずみ速度を利用した金属材料の余寿命評価方法 |
JP4808189B2 (ja) * | 2007-07-13 | 2011-11-02 | 中国電力株式会社 | 余寿命推定方法、余寿命推定システム、コンピュータプログラム、記録媒体 |
JP2013117485A (ja) * | 2011-12-05 | 2013-06-13 | Chugoku Electric Power Co Inc:The | 高クロム鋼管の余寿命を推定する余寿命推定方法、推定システム、及び、推定プログラム |
JP2014071053A (ja) * | 2012-10-01 | 2014-04-21 | Hitachi Ltd | 高温部材のクリープ損傷評価方法および損傷評価システム |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5275893A (en) * | 1991-12-11 | 1994-01-04 | Nippon Steel Corporation | Line pipe having good corrosion-resistance and weldability |
GB2383848B (en) * | 2000-08-16 | 2004-07-28 | Chugoku Electric Power | Creep life evaluation method |
AR047467A1 (es) * | 2004-01-30 | 2006-01-18 | Sumitomo Metal Ind | Tubo de acero sin costura para pozos petroliferos y procedimiento para fabricarlo |
US7328618B2 (en) * | 2005-06-21 | 2008-02-12 | National Research Council Of Canada | Non-destructive testing of pipes |
JP2007046717A (ja) * | 2005-08-10 | 2007-02-22 | Ntn Corp | ジョイント用爪付き転動軸 |
JP5086615B2 (ja) | 2006-11-15 | 2012-11-28 | 三菱重工業株式会社 | 高強度鋼溶接部のクリープ伸びによる寿命評価方法及び高強度鋼溶接部の寿命評価方法 |
JP2013122411A (ja) | 2011-12-12 | 2013-06-20 | Mitsubishi Heavy Ind Ltd | 配管のクリープ寿命評価方法 |
US20130214771A1 (en) * | 2012-01-25 | 2013-08-22 | Radiation Monitoring Devices, Inc. | Systems and methods for inspecting structures including pipes and reinforced concrete |
JP6406013B2 (ja) * | 2012-09-28 | 2018-10-17 | 日本電気株式会社 | 欠陥分析装置、欠陥分析方法及びプログラム |
JP6189657B2 (ja) * | 2013-06-20 | 2017-08-30 | 三菱日立パワーシステムズ株式会社 | 耐熱鋼部材の余寿命診断方法 |
-
2014
- 2014-10-01 EP EP14903099.1A patent/EP3203211B1/en active Active
- 2014-10-01 ES ES14903099T patent/ES2817932T3/es active Active
- 2014-10-01 JP JP2015532201A patent/JP5801520B1/ja not_active Expired - Fee Related
- 2014-10-01 WO PCT/JP2014/076285 patent/WO2016051558A1/ja active Application Filing
- 2014-10-01 US US15/514,383 patent/US10295456B2/en active Active
- 2014-10-01 CA CA2962544A patent/CA2962544C/en active Active
-
2017
- 2017-03-28 PH PH12017500578A patent/PH12017500578B1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4638621B2 (ja) * | 2001-06-19 | 2011-02-23 | 九州電力株式会社 | クリープひずみ速度を利用した金属材料の余寿命評価方法 |
JP2009020074A (ja) * | 2007-07-13 | 2009-01-29 | Chugoku Electric Power Co Inc:The | 余寿命推定システム、余寿命推定方法、コンピュータプログラム、記録媒体 |
JP4808189B2 (ja) * | 2007-07-13 | 2011-11-02 | 中国電力株式会社 | 余寿命推定方法、余寿命推定システム、コンピュータプログラム、記録媒体 |
JP2013117485A (ja) * | 2011-12-05 | 2013-06-13 | Chugoku Electric Power Co Inc:The | 高クロム鋼管の余寿命を推定する余寿命推定方法、推定システム、及び、推定プログラム |
JP2014071053A (ja) * | 2012-10-01 | 2014-04-21 | Hitachi Ltd | 高温部材のクリープ損傷評価方法および損傷評価システム |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019188887A1 (ja) * | 2018-03-28 | 2019-10-03 | 三菱日立パワーシステムズ株式会社 | 配管の余寿命評価方法 |
JP2019174236A (ja) * | 2018-03-28 | 2019-10-10 | 三菱日立パワーシステムズ株式会社 | 配管の余寿命評価方法 |
CN111919104A (zh) * | 2018-03-28 | 2020-11-10 | 三菱动力株式会社 | 配管的剩余寿命评价方法 |
JP7075256B2 (ja) | 2018-03-28 | 2022-05-25 | 三菱重工業株式会社 | 配管の余寿命評価方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2016051558A1 (ja) | 2017-04-27 |
PH12017500578A1 (en) | 2017-08-30 |
EP3203211A4 (en) | 2017-10-18 |
CA2962544C (en) | 2019-06-04 |
CA2962544A1 (en) | 2016-04-07 |
EP3203211A1 (en) | 2017-08-09 |
ES2817932T3 (es) | 2021-04-08 |
US10295456B2 (en) | 2019-05-21 |
EP3203211B1 (en) | 2020-06-24 |
JP5801520B1 (ja) | 2015-10-28 |
PH12017500578B1 (en) | 2017-08-30 |
US20170292906A1 (en) | 2017-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5801520B1 (ja) | 高クロム鋼管の余寿命を推定する余寿命推定方法 | |
JP5450903B1 (ja) | 加熱及び加圧により劣化した製品のクリープ余寿命の予測方法、及び、この予測方法に用いる検量線作成方法 | |
JP5563169B1 (ja) | 距離測定システム、距離測定方法 | |
EP1517138B1 (en) | Method and apparatus for acoustic thermography inspection | |
JP5783553B2 (ja) | 配管寿命決定方法 | |
JP6974984B2 (ja) | 余寿命評価方法及び保守管理方法 | |
JP2003090506A (ja) | ボイラ伝熱管異材継手溶接部の損傷診断法と装置 | |
JP6197391B2 (ja) | 構造物の疲労寿命評価方法 | |
WO2019044554A1 (ja) | 亀裂評価基準策定方法、内部探傷検査による亀裂評価方法及び保守管理方法 | |
JP5531257B2 (ja) | タービン翼の探傷方法 | |
JP2017151107A (ja) | フェーズドアレイ法による溶接部内の亀裂評価方法及び溶接部の保守管理方法 | |
JP2014052211A (ja) | 溶接部評価装置および溶接部評価方法 | |
RU2625985C1 (ru) | Способ изготовления фланцевой вставки для проверки работоспособности внутритрубных инспекционных приборов на испытательном трубопроводном полигоне | |
JP2014145657A (ja) | 金属部材の寿命評価方法及び寿命評価装置 | |
JP5377617B2 (ja) | 高クロム鋼管の余寿命を推定する余寿命推定方法、推定システム、及び、推定プログラム | |
JP6254033B2 (ja) | 寿命評価方法及び寿命評価装置 | |
KR101519594B1 (ko) | 초음파 적외선 최적 방열 검출 캘리브레이션 시험편 유닛, 그 시험편 유닛을 이용한 교정방법, 그 시험편 유닛을 이용한 열화상 비파괴 검사 시스템 및 검출방법 | |
JP2011237221A (ja) | オーストナイト系スレンレス鋼の応力状態推定方法 | |
JP2007303980A (ja) | 金属部材のクリープ余寿命の予測方法 | |
JP6109061B2 (ja) | 耐熱部材の溶接部の余寿命検査方法 | |
JP2540630B2 (ja) | フェライト系耐熱鋼の余寿命評価方法 | |
WO2015059815A1 (ja) | 加熱及び加圧により劣化した製品のクリープ余寿命の予測方法、及び、この予測方法に用いる検量線作成方法 | |
Das et al. | Application of Advanced NDE for Health & Life Assessment of Power Plant Components-Some Case Studies | |
JP2007192645A (ja) | き裂形状同定方法およびき裂形状同定システム | |
JP2017015417A (ja) | 構造材の変形量評価装置および方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2015532201 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14903099 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2014903099 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014903099 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2962544 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15514383 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12017500578 Country of ref document: PH |
|
NENP | Non-entry into the national phase |
Ref country code: DE |