公开(公告)号：US20160363525A1

公开(公告)日：2016-12-15

申请号：US14496164

申请日：2014-09-25

申请人： Luna Innovations Incorporated

发明人： Fritz John FRIEDERSDORF ,  Conrad Koenig ANDREWS ,  Paul Gordon MUSKOPF ,  Kathryn Beryl RIDDER

IPC分类号： G01N17/04 ,  G01N3/02 ,  G01N27/20

CPC分类号： G01N17/04 ,  G01N3/02 ,  G01N3/06 ,  G01N3/08 ,  G01N3/20 ,  G01N17/02 ,  G01N17/043 ,  G01N19/04 ,  G01N27/023 ,  G01N27/041 ,  G01N27/20 ,  G01N27/22 ,  G01N33/0031 ,  G01N2203/024

摘要： A measurement system permits environmental, corrosion damage, and mechanical property measurements to assess protection properties of coatings. The system includes one or more multi-sensor panels, each multi-sensor panel having sensors for assessing coating barrier properties, free corrosion, and galvanic corrosion. Each multi-sensor panel is installed on a test rack that contains electronics for sensor excitation and sensor data acquisition throughout a corrosion test. Sensor data is collected, stored, and communicated to a base station. A network of multiple test racks can be supported by a base station to compare the performance of different coatings and material combinations simultaneously. The test racks can be used in accelerated atmospheric corrosion tests, outdoor test sites, or application service environments. Measurements of the capacity of a coating to maintain barrier properties, prevent free corrosion, galvanic corrosion, and environment-assisted cracking can be used to develop, select, and predict service performance of coatings.

摘要翻译： 测量系统允许环境，腐蚀损坏和机械性能测量来评估涂层的保护性能。 该系统包括一个或多个多传感器面板，每个多传感器面板具有用于评估涂层阻隔性质，自由腐蚀和电偶腐蚀的传感器。 每个多传感器面板安装在测试架上，其中包含用于传感器激励和传感器数据采集的电子元件，用于腐蚀测试。 传感器数据被收集，存储并传送到基站。 基站可以支持多个测试机架的网络，以同时比较不同涂层和材料组合的性能。 测试机架可用于加速大气腐蚀测试，户外测试场所或应用服务环境。 涂层保持阻隔性能，防止自由腐蚀，电偶腐蚀和环境辅助裂化的能力的测量可用于开发，选择和预测涂层的使用性能。

公开(公告)号：US09128018B2

公开(公告)日：2015-09-08

申请号：US14205876

申请日：2014-03-12

申请人： HITACHI METALS, LTD.

发明人： Ryuuichiroh Sugano ,  Hidemitsu Horie ,  Kouta Kataoka ,  Yousuke Nakano

IPC分类号： G01N3/32 ,  G01N17/00

CPC分类号： G01N17/006 ,  G01N3/32 ,  G01N2203/0005 ,  G01N2203/0066 ,  G01N2203/0075 ,  G01N2203/024

摘要： A method for evaluating the corrosion-fatigue life of a steel material includes: bringing a corrosive medium into contact with a predetermined portion of the steel material; measuring strain on the steel material while applying cyclic loads to the steel material; measuring an N-th strain index from strain amplitude at the number of initial load applications and strain amplitude at the N-th load application (N is a natural number larger than the number of initial load applications); and estimating the corrosion-fatigue life of the steel material by comparing the N-th strain index with a previously certified life strain index.

摘要翻译： 评估钢材的耐腐蚀寿命的方法包括：使腐蚀介质与钢材的预定部分接触; 在钢材上施加循环载荷时测量钢材上的应变; 在第N次载荷施加下，初始载荷应用数量和应变幅度下的应变振幅测量第N个应变指数（N是大于初始载荷应用数量的自然数）; 并通过将第N个应变指数与先前认证的寿命应变指数进行比较来估算钢材的腐蚀疲劳寿命。

公开(公告)号：US20140238145A1

公开(公告)日：2014-08-28

申请号：US13780944

申请日：2013-02-28

申请人： THE BOEING COMPANY

发明人： Luong Minh Tran ,  Matthias P. Schriever

IPC分类号： G01N3/28

CPC分类号： G01N3/28 ,  G01N3/20 ,  G01N17/002 ,  G01N19/08 ,  G01N33/20 ,  G01N2203/0003 ,  G01N2203/0023 ,  G01N2203/0064 ,  G01N2203/0066 ,  G01N2203/0067 ,  G01N2203/0073 ,  G01N2203/0096 ,  G01N2203/024 ,  G01N2203/0252 ,  G01N2203/027 ,  G01N2203/0282

摘要： A method for use in determining hydrogen embrittlement in a plated sample is provided. The method includes positioning the plated sample between a first holding member and a second holding member, moving the second holding member towards the first holding member to bend the plated sample, and applying a static load to the plated sample for a predetermined duration of time. The static load is applied by bending the plated sample to a distance between the first and second holding members that is a predetermined percentage of a baseline ultimate failure distance of the plated sample.

摘要翻译： 提供了一种用于测定镀覆样品中氢脆性的方法。 该方法包括将镀覆的样品定位在第一保持构件和第二保持构件之间，将第二保持构件朝向第一保持构件移动以弯曲镀覆的样品，并将静态载荷施加到电镀样品上一段预定的时间。 通过将镀覆的样品弯曲到第一和第二保持构件之间的距离而施加静态载荷，该距离是镀覆样品的基线极限故障距离的预定百分比。

公开(公告)号：US08316712B2

公开(公告)日：2012-11-27

申请号：US12950830

申请日：2010-11-19

申请人： Gregory Muravin ,  Boris Muravin ,  Ludmila Lezvinsky ,  Itzik Mizrahi

发明人： Gregory Muravin ,  Boris Muravin ,  Ludmila Lezvinsky ,  Itzik Mizrahi

IPC分类号： G01H1/00

CPC分类号： G01N29/14 ,  G01N29/043 ,  G01N29/4436 ,  G01N29/4454 ,  G01N2203/0062 ,  G01N2203/024

摘要： Inspecting for fracture hazards by detecting a presence of at least one flaw development process in an equipment under inspection, the flaw development process being corrosion product nucleation and development, pitting, plastic deformation development, and/or micro-cracking. Detecting the presence of the flaw development process includes (a) determining at least one characteristic acoustic emission (AE) signature associated with a respective flaw development process, and (b) measuring an AE from each of a plurality of locations within the equipment. Presence of the respective flaw development process is identified only when the measured AE conforms to the characteristic AE signature within a predetermined tolerance. A fracture hazard is determined to exist only when (a) a quantity of the identified flaw development processes exceeds a first predetermined threshold and/or (b) a magnitude of at least one of the identified flaw development processes exceeds a second predetermined threshold.

摘要翻译： 通过检测在检查设备中存在至少一个缺陷发展过程来检查骨折危险，缺陷发展过程是腐蚀产物成核和发展，点蚀，塑性变形发展和/或微裂纹。 检测缺陷开发过程的存在包括（a）确定与相应的缺陷开发过程相关联的至少一个特征声发射（AE）签名，以及（b）从设备内的多个位置中的每一个测量AE。 只有当所测量的AE符合预定公差内的特征AE签名时才识别相应的缺陷显影过程。 确定断裂危险仅在（a）一定数量的所述缺陷开发过程超过第一预定阈值和/或（b）至少一个识别的缺陷显影处理的量值超过第二预定阈值时存在。

公开(公告)号：US08065929B2

公开(公告)日：2011-11-29

申请号：US12435531

申请日：2009-05-05

申请人： Todd Yakimoski ,  Bernadette Craster ,  Scott Jacobs ,  Ahmed Hammami

发明人： Todd Yakimoski ,  Bernadette Craster ,  Scott Jacobs ,  Ahmed Hammami

IPC分类号： G01N17/00

CPC分类号： G01N17/002 ,  G01N3/08 ,  G01N2203/0017 ,  G01N2203/0226 ,  G01N2203/0232 ,  G01N2203/024 ,  G01N2203/0242

摘要： An environmental mechanical test apparatus includes a pressure generation source and an isolation cylinder in fluid communication with the pressure generation source. The test apparatus further includes a pressure containment cell configured to receive a test specimen, an environmental chamber disposed about the pressure containment cell, and a load frame operably associated with the pressure containment cell. The pressure containment cell is in fluid communication with the pressure generation source and the isolation cylinder and includes a viewing window.

摘要翻译： 环境机械测试装置包括压力发生源和与压力产生源流体连通的隔离缸。 测试装置还包括被配置为接收测试样本的压力容纳单元，围绕压力容纳单元设置的环境室以及与压力容纳单元可操作地相关联的负载框架。 压力容纳室与压力发生源和隔离筒流体连通，并且包括观察窗。

公开(公告)号：US20070084303A1

公开(公告)日：2007-04-19

申请号：US11544659

申请日：2006-10-10

申请人： Giancarlo Bussu

发明人： Giancarlo Bussu

IPC分类号： G01N33/00

CPC分类号： G01N17/00 ,  G01N3/08 ,  G01N2203/024

摘要： An apparatus for performing tests on materials, the apparatus comprising a leaktight receptacle defining an inside volume, said receptacle being provided: with an opening; with means for providing leaktight contact between the edges of said opening and a portion of a surface of a test piece of a material disposed outside said receptacle; with means for introducing at least one chemical agent in order to create, within said inside volume, a test chemical environment to which said surface portion of the test piece is exposed; and with drain means for draining said introduced chemical agent(s); wherein said receptacle is also provided with a bottom including a surface that is inclined or conical and that co-operates with said drain means to enable said introduced chemical agent(s) to be removed totally or in part. A method using an apparatus according to claim 1 for carrying out tests on materials.

摘要翻译： 一种用于对材料进行测试的装置，所述装置包括限定内部容积的密封容器，所述容器设置有开口; 具有用于在所述开口的边缘与设置在所述容器外部的材料的测试件的表面的一部分之间提供密封接触的装置; 用于引入至少一种化学试剂的装置，以便在所述内部体积内产生所述测试片的所述表面部分暴露于的测试化学环境; 以及用于排出所述引入的化学试剂的排出装置; 其中所述容器还设置有底部，所述底部包括倾斜或圆锥形的表面，并且与所述排水装置配合以使所述引入的化学试剂被全部或部分去除。 2.一种使用权利要求1所述的装置进行材料试验的方法。

公开(公告)号：US20030126922A1

公开(公告)日：2003-07-10

申请号：US10043043

申请日：2002-01-09

发明人： James W. Coleman

IPC分类号： G01L005/04

CPC分类号： G01N33/445 ,  G01N2203/024 ,  G01N2203/0494

摘要： The present invention relates to an elastomeric material thickness test fixture. The test fixture comprises a cylinder having an interior space for receiving at least one sheet of a material to be tested, and a piston movable relative to the cylinder for applying a holding force to the at least one sheet. The piston has a through hole to allow a test medium to be used to study chemical attack to come into contact with the at least one sheet. A process for allowing assessment of chemical attack on thick elastomeric materials using the test fixture is also described.

摘要翻译： 本发明涉及弹性体材料厚度测试夹具。 测试夹具包括具有用于容纳待测试材料的至少一个片材的内部空间的圆柱体，以及可相对于圆柱体移动的活塞，用于向至少一个片材施加保持力。 活塞具有通孔以允许使用测试介质来研究化学侵蚀以与至少一个片材接触。 还描述了允许使用测试夹具评估对厚弹性体材料的化学侵蚀的方法。

公开(公告)号：US5883311A

公开(公告)日：1999-03-16

申请号：US667711

申请日：1996-06-21

申请人： Samson Hettiarachchi ,  Gary Paul Wozadlo

发明人： Samson Hettiarachchi ,  Gary Paul Wozadlo

IPC分类号： G01N3/00 ,  G01N3/02 ,  G01N3/06 ,  G01N3/32 ,  G01N19/08

CPC分类号： G01N17/006 ,  G01N17/02 ,  G01N3/066 ,  G01N3/32 ,  G01N2203/0064 ,  G01N2203/0218 ,  G01N2203/0222 ,  G01N2203/024 ,  G01N2203/0244 ,  G01N2203/0246

摘要： Methods and apparatus for detecting the onset of stress corrosion cracking are described. In one aspect, the present invention is a passive detector for in-situ detection of the onset of stress corrosion cracking in a nuclear reactor. The detector includes a ceramic insulator mounting member. A first material sample and a second material sample are secured to the mounting member. In the one embodiment, a metal bolt extends through the first and second material samples and secures the samples to the mounting member. The first material sample is cold worked to induce residual tensile stress and the second material is not cold worked. A first electrical conductor is electrically connected to the first material sample and a second electrical conductor is electrically connected to the second material sample. An electrometer is electrically connected to the first and second electrical conductors, and the electrometer is configured to generate a strain induced differential potential signal representative of a difference in potential between the first sample and the second sample. Alternatively, a strain induced differential current signal can be monitored using a zero resistance ammeter in place of the electrometer. The detector configured to be located within the reactor at the location where monitoring is desired, and during the reactor operation, if transients are observed in the differential signal, this condition indicates that at the location of the detector, an inspection should be performed at the next outage to determine whether cracking is occurring. Active detectors, detection methods, and test apparatus also are described.

摘要翻译： 描述了用于检测应力腐蚀开裂发生的方法和装置。 一方面，本发明是用于在核反应堆中原位检测应力腐蚀开裂的无源检测器。 检测器包括陶瓷绝缘体安装构件。 第一材料样品和第二材料样品固定到安装构件。 在一个实施例中，金属螺栓延伸穿过第一和第二材料样品并将样品固定到安装构件。 第一种材料样品被冷加工以引起残余拉伸应力，第二种材料不被冷加工。 第一电导体电连接到第一材料样品，第二电导体与第二材料样品电连接。 静电计电连接到第一和第二电导体，并且静电计被配置为产生代表第一样品和第二样品之间的电位差的应变感应差分电位信号。 或者，可以使用零电阻电流表代替静电计来监测应变感应差动电流信号。 检测器被配置为位于反应器内需要监测的位置处，并且在电抗器操作期间，如果在差动信号中观察到瞬变，则该条件指示在检测器的位置处应该在 下一次断电以确定是否发生裂纹。 还描述了主动检测器，检测方法和测试装置。

公开(公告)号：US10024781B2

公开(公告)日：2018-07-17

申请号：US15121501

申请日：2015-02-19

申请人： JFE STEEL CORPORATION

发明人： Italu Samusawa ,  Kazuhiko Shiotani

IPC分类号： G01N3/32 ,  G01N17/04 ,  G01N3/08

CPC分类号： G01N17/04 ,  G01N3/08 ,  G01N3/32 ,  G01N2203/006 ,  G01N2203/0062 ,  G01N2203/0069 ,  G01N2203/0236 ,  G01N2203/024 ,  G01N2203/0242

摘要： A stress corrosion crack test method for evaluating the stress corrosion crack susceptibility of a steel material in alcohol. The method includes filling a cell containing a uniaxial tensile test piece of the steel material with an alcohol solution containing carboxylic acid: 0.1 mmol/L or more and less than 40 mmol/L, chloride ions: 0.05 mg/L or more and less than 300 mg/L, and water: 0.1 vol. % or more and less than 5 vol. %. Additionally, the method includes applying a fluctuating stress at a frequency of 2.0×10−5 Hz or more and 2.0×10−2 Hz or less to the uniaxial tensile test piece in the tensile direction. The maximum stress being equal to or more than the yield strength and less than the tensile strength at a test solution temperature, and the minimum stress being 0% or more and 90% or less of the yield strength.

公开(公告)号：US08513020B2

公开(公告)日：2013-08-20

申请号：US12961901

申请日：2010-12-07

申请人： Lucien Hehn ,  Kevin J. Wyble ,  Kenneth E. Casner, Jr. ,  Kenneth E. Casner, Sr. ,  Joseph Casner ,  George M. Waid

发明人： Lucien Hehn ,  Kevin J. Wyble ,  Kenneth E. Casner, Jr. ,  Kenneth E. Casner, Sr. ,  Joseph Casner ,  George M. Waid

IPC分类号： G01N17/04 ,  G01N3/20 ,  G01N3/04 ,  G01N33/20

CPC分类号： G01N17/002 ,  G01N3/20 ,  G01N2203/0023 ,  G01N2203/024 ,  G01N2203/0296

摘要： A system for sulfide stress cracking testing comprises an enclosed testing chamber including a fluid bath comprising a liquid saturated with hydrogen sulfide gas. In addition, the system comprises a test fixture disposed in the testing chamber and at least partially submerged in the fluid bath. The test fixture includes a housing having an internal chamber in fluid communication with the fluid bath and a test assembly disposed in the internal chamber. The test assembly comprises a first upper support and a second upper support, a first lower support and a second lower support, and a first platen engaging each of the upper supports and adapted to transfer an applied vertical load to the upper supports. Further, the system comprises a test specimen mounted in the test assembly between the upper supports and the lower supports.

摘要翻译： 一种用于硫化物应力开裂测试的系统包括封闭的测试室，其包括包含饱和硫化氢气体的液体的流体浴。 此外，该系统包括设置在测试室中并且至少部分地浸没在流体浴中的测试夹具。 测试夹具包括具有与流体槽流体连通的内部室的壳体和设置在内部室中的测试组件。 测试组件包括第一上部支撑件和第二上部支撑件，第一下部支撑件和第二下部支撑件，以及接合每个上部支撑件并且适于将施加的垂直载荷传递到上部支撑件的第一压板。 此外，该系统包括安装在上部支撑件和下部支撑件之间的测试组件中的测试样本。