CN104458559B - Stress - electrochemical corrosion test device - Google Patents

Stress - electrochemical corrosion test device Download PDF

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Publication number
CN104458559B
CN104458559B CN 201410677141 CN201410677141A CN104458559B CN 104458559 B CN104458559 B CN 104458559B CN 201410677141 CN201410677141 CN 201410677141 CN 201410677141 A CN201410677141 A CN 201410677141A CN 104458559 B CN104458559 B CN 104458559B
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stress
cartridge
chamber
stretching
corrosion
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CN 201410677141
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CN104458559A (en )
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谢飞
吴明
张文建
王丹
黄珊
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辽宁石油化工大学
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Abstract

本发明涉及一种能实现厌氧菌存在下的应力‑电化学腐蚀测试装置。 The present invention relates to a stress can be achieved in the presence of anaerobic bacteria - electrochemical corrosion test apparatus. 装置由电化学工作站、应力腐蚀拉伸机、恒温水浴槽和自制拉伸盒构成,自制拉伸盒为圆柱双室结构,外室走介质溶液,内室半盛放试验溶液,外室顶端封死,内室壁有支架,内室高度低于外室,盒盖钻有多个孔洞,盒盖与盒体间空隙用封口膜密封,拉伸盒外套有一层棉布筒状保温罩,保温罩两头带有橡皮筋,恒温水浴槽内可采用两种介质溶液,用于加热或制冷试验溶液。 Apparatus consists of electrochemical workstation, stress corrosion stretching machine, stretched self-temperature bath and the cartridge, the cartridge is made cylindrical tensile dual chamber configuration, the outer chamber go medium solution, semi-contained test solution within the chamber, sealing the top of the outer chamber die, the inner wall with a bracket, an inner chamber is less than the height of the outer chamber, between the plurality of holes are drilled lid, the lid with the box body by a gap sealing tape cassette casing has a layer of stretch cotton cylindrical insulation cover, insulation cover with two rubber bands, constant temperature water bath was employed two media, for heating or cooling the test solution. 本装置可避免拉伸盒内溶液溢出,并为拉伸试样提供恒温密闭的应力腐蚀环境,实现多种测试方法的同步测量。 The device can avoid stretching box overflow solution, and provide a stress corrosive environment thermostat closed tensile specimens, a variety of synchronized measurement test methods.

Description

应力-电化学腐蚀测试装置 Stress - electrochemical corrosion test device

技术领域 FIELD

[0001] 本发明涉及一种腐蚀测试装置,尤其涉及一种在厌氧菌存在下能同时进行应力腐蚀和电化学腐蚀测试的应力-电化学腐蚀测试装置。 [0001] The present invention relates to a corrosion test apparatus, particularly relates to an electrochemical corrosion and stress corrosion test while in the presence of anaerobic stress - electrochemical corrosion test apparatus.

背景技术 Background technique

[0002] 目前,公知的应力腐蚀测试装置由拉伸盒和拉伸机组成。 [0002] At present, known apparatus a tensile stress corrosion test cartridge and stretching machine. 将试件密封在拉伸盒上, 在盒中放入试验溶液后盖上盒盖,将整个拉伸盒固定在应力腐蚀拉伸机上进行测试。 The test piece in the tensile seal cartridge, put the lid in a cartridge into the test solution, the entire cartridge is fixed to the tensile stress corrosion test stretching machine. 但是, 这种拉伸盒的盒体和盒盖容易分离,溶液经常溢出到应力腐蚀拉伸机上,导致拉伸机传动轴锈蚀。 However, this stretching of the cassette case body and the lid easily separated, the solution often spilled to stress corrosion stretching machine, cause corrosion stretching machine shaft. 而且目前的应力腐蚀测试装置只能在室温下进行,而厌氧菌适宜生长在30°C恒温厌氧环境中,室温下进行有厌氧菌存在下的应力腐蚀测试会导致厌氧菌活性降低,腐蚀作用减弱,试验结果与真实情况出入较大,容易造成误判。 And the current stress corrosion test apparatus only at room temperature, suitable for the growth of anaerobic bacteria and the temperature 30 ° C in an anaerobic environment, at room temperature in the presence of anaerobic bacteria cause stress corrosion testing anaerobes reduced activity corrosion weakened, test results and the real situation of access to a larger, easily lead to miscarriage of justice.

发明内容 SUMMARY

[0003] 为了克服现有应力腐蚀试验仅限于室温条件、溶液容易溢出的不足,本发明提供一种应力-电化学腐蚀测试装置,该装置不仅能进行常规的应力腐蚀测试,而且能提供恒温环境,进行厌氧菌存在下的应力-电化学腐蚀同步测试的装置。 [0003] In order to overcome the stress corrosion test is limited to room temperature, the solution is easy to overflow deficiencies, the present invention provides a stress - electrochemical corrosion test apparatus, the apparatus can not only conventional stress corrosion test, but also to provide a constant temperature environment , carried out in the presence of anaerobic stress - synchronization means electrochemical corrosion tests.

[0004] 本发明解决其技术问题所采用的技术方案是: [0004] aspect of the present invention to solve the technical problem are:

[0005] 包括电化学工作站、应力腐蚀拉伸机、恒温水浴槽和拉伸盒,拉伸盒固定在应力腐蚀拉伸机上,拉伸盒进出水口与恒温水浴槽连通;所述的拉伸盒为双室构造,外室走介质溶液,内室放试验溶液;外室顶端封死,内室壁有支架,支架支撑盒盖,盒盖与盒体间空隙用封口膜密封;应力加载试件固定在拉伸盒底端密封塞上,盐桥、铂片安装在盒盖上位于应力加载试件两侧,盐桥连接参比电极,铂片、应力加载试件及参比电极分别连接到电化学工作站的电极接口。 [0005] comprises an electrochemical workstation, stress corrosion stretching machine and stretching temperature bath cartridge, the cartridge is fixed to the tensile stress corrosion stretching machine, stretched cartridge inlet and outlet communicating with a thermostatic water bath; stretching said cartridge dual chamber configuration, the outer chamber go medium solution, the test solution discharge chamber; outer top sealed chamber, between the inner wall has a bracket supporting the lid, the lid of the box sealing tape with interstices; stress loading test piece a sealing plug is fixed at the bottom of the cartridge stretching, salt bridges, platinum plate mounted on the cover member is located on both sides of the stress loading test, a salt bridge connecting a reference electrode, a platinum sheet, a stress loading test piece and the reference electrode respectively connected to the electrode electrochemical workstation interfaces.

[0006] 所述的内室高度低于外室。 Within the chamber [0006] less than the height of the outer chamber.

[0007] 所述的盒盖钻有多个孔洞。 [0007] The plurality of holes are drilled in the lid.

[0008] 所述的盐桥和铂片正对应力加载试件中央部位。 [0008] The salt bridges and the platinum plate facing the central portion of the stress element is loaded again.

[0009] 所述的拉伸盒外套有保温罩。 Stretch outer cartridge [0009] There is the insulation cover.

[0010] 所述的内室试验溶液中插有温度计和氮气管。 Said inner chamber test solution [0010] is inserted in the thermometer and a nitrogen tube.

[0011] 所述的恒温水浴槽和拉伸盒之间通过橡胶管连通,橡胶管水平绑在拉伸机支柱上。 [0011] communication through a rubber tube, rubber tube strapped to the stretcher horizontal strut between said cartridge and stretch temperature bath.

[0012] 所述的铂片连接到辅助电极接口,应力加载试件连接到工作电极接口,参比电极连接到参比电极接口。 [0012] The platinum plate was connected to an auxiliary electrode interface stress test load member is connected to an interface of the working electrode, the reference electrode is connected to the reference electrode interfaces.

[0013] 所述的应力腐蚀拉伸机通过拉伸机传动装置将恒定外加载荷不断施加给应力加载试件。 [0013] The stress corrosion by a tensile drawing machine gear device continuously constant applied load stress applied to the specimen is loaded.

[0014] 所述的恒温水浴槽内采用水和95%乙醇两种介质溶液。 [0014] the water bath tank with water and 95% ethanol two media.

[0015] 本发明的优点效果如下: [0015] The advantage effects of the present invention are as follows:

[0016] 1、拉伸盒为圆柱双室构造,外室走介质溶液,内室放试验溶液,介质溶液经恒温水浴槽加热后沿拉伸盒外室循环,不断将热量传给内室,内室溶液中插有温度计,能实现应力腐蚀试验溶液在0 °c到100 °c间的恒定准确控制,进行温度变化对材料应力腐蚀影响的研宄。 [0016] 1, was stretched into a cylindrical cartridge media take the dual chamber configuration, the outer chamber, the inner chamber discharge test solution, the medium solution was heated in a thermostatic water bath stretched cartridge chamber outer loop, continuously heat to the inner chamber, was inserted in the inner chamber with a thermometer, to achieve stress corrosion test solution at a constant accurate control of between 0 ° c to 100 ° c, the temperature change study based on the stress corrosion material.

[0017] 2、内室高度低于外室,在拉伸盒发生倾斜时能有效抑制内外室液体溢出与掺混, 杜绝镑蚀拉伸机。 [0017] 2, the chamber height is less than the outer chamber, the cartridge is inclined during stretching occurs both inside and outside the chamber effective to inhibit spillage of liquid and blended, to prevent corrosion pound stretcher.

[0018] 3、盒盖钻有多个孔洞,用于连接三电极,能同时进行电化学腐蚀和应力腐蚀行为测量。 [0018] 3, a plurality of cap holes are drilled for connection of a three electrode electrochemical corrosion can be measured simultaneously and stress corrosion behavior.

[0019] 4、拉伸盒盒盖与盒体间空隙用封口膜密封,实现密闭环境,满足厌氧菌在30-C恒温、密闭环境中的生长需求,实现加菌条件下的应力腐蚀试验。 [0019] 4, stretched between the cassette cover and the cassette body voids with sealing tape, to achieve a closed environment, to meet the needs of growth of anaerobic bacteria in 30-C temperature, in a closed environment, to achieve stress corrosion test under conditions of applied bacteria .

[0020] 5、拉伸盒外套有一层筒状棉布保温罩,棉布保温罩两头带有橡皮筋,易拆卸,能有效减少热量散失。 [0020] 5, the cartridge casing has a layer of stretch cotton cylindrical insulation cover, cotton insulation cover with two rubber bands, easy to disassemble, can effectively reduce heat loss.

[0021] 6、恒温水浴槽内可采用水和95%乙醇两种介质溶液,可用于加热和制冷试验溶液。 [0021] 6, may employ water bath tank two media water and 95% ethanol, can be used for heating and cooling the test solution.

[0022] 7、装置能拆卸,操作简单,占地空间小。 [0022] 7. The apparatus detachably, simple operation, small footprint.

附图说明 BRIEF DESCRIPTION

[0023] 图1是本发明装置的主视剖视图。 [0023] FIG. 1 is a front cross-sectional view of the apparatus of the present invention.

[0024] 图2是本发明装置中自制拉伸盒的俯视图。 [0024] FIG. 2 is a plan view of the self-stretching apparatus of the present invention in the cartridge.

[0025] 图3是本发明装置中自制拉伸盒的左视图。 [0025] FIG. 3 is a left side view of the device according to the present invention made of stretched cartridge.

[0026]图中装置构成为:1、电化学工作站;2、辅助电极接口; 3、工作电极接口; 4、参比电极接口; 5、外室;6、内室;7、铀片;8、盒盖;9、应力加载试件;10、拉伸杆;11、密封塞;12、参比电极;13、盐桥,14、棉布保温罩,15、拉伸盒进出水口,16、橡胶管,17、恒温水浴槽,18、拉伸机传动装置,19、应力腐蚀拉伸机,20、辅助电极插口,21、温度计插口,22、应力加载试件安放口,23、氮气输入管插口,24、参比电极插口,25、二氧化碳输入管插口,26、支架。 [0026] FIG device is configured: 1, electrochemical workstation; 2, the auxiliary electrode interfaces; 3, the working electrode interfaces; 4, reference electrode interfaces; 5, the outer chamber; 6, the inner chamber; 7, uranium sheet; 8 , lid; 9, stress loading the specimen; 10, the stretch rod; 11, sealing plug; 12, reference electrode; 13, a salt bridge, 14, cotton insulation cover, 15, stretching out of the outlet box 16, a rubber tube 17, a temperature bath, 18, stretcher drive means 19, stress corrosion stretching machine 20, the auxiliary electrode socket, 21, a thermometer socket, 22, a stress load placed specimen port 23, a nitrogen gas inlet tube socket 24, the reference electrode socket 25, the carbon dioxide input tube socket 26, holder.

具体实施方式 detailed description

[0027] 下面结合附图及实施方式对本发明专利作进一步详细的说明。 [0027] Hereinafter, the present invention patent is described in further detail in conjunction with the accompanying drawings and embodiments. 实施例 Example

[0028] 如图1-3所示,包括电化学工作站1、应力腐蚀拉伸机19、恒温水浴槽17和拉伸盒, 拉伸盒固定在应力腐蚀拉伸机19上,拉伸盒进出水口15与恒温水浴槽17通过橡胶管16连通,橡胶管水平绑在拉伸机支柱上,恒温水浴槽17内采用水和95%乙醇两种介质溶液;所述的拉伸盒为双室构造,外室5走介质溶液,内室6放试验溶液,内室试验溶液中插有温度计和氮气管;内室高度低于外室,外室顶端封死,内室壁有支架26,支架支撑盒盖8,盒盖钻有多个孔洞,孔洞包括辅助电极插口20、温度计插口21、应力加载试件安放口22、氮气输入管插口23、参比电极插口24、二氧化碳输入管插□ 25,盒盖8与盒体间空隙用封□膜密封;拉伸盒外套有保温罩,保温罩两头带有橡皮筋;应力加载试件9固定在拉伸盒底端密封塞11上,盐桥13、铂片7安装在盒盖8上位于应力加载试件两侧,盐桥13和铂 [0028] As shown in FIG 1-3, comprising an electrochemical workstation, stress corrosion stretching machine 19, heated water bath and drawing the cassette 17, the cassette is fixed to the tensile stress corrosion stretching machine 19, stretched out of the cartridge 15 and the outlet temperature bath 17 through a rubber tube 16 in communication, the level of the rubber tube strapped to the stretcher strut, with water and 95% ethanol in the two media 17 thermostat water bath; stretching said dual chamber cartridge is configured , the outer chamber 5 go medium solution, the test solution discharge chamber 6, the chamber in the test solution with a thermometer and a nitrogen gas pipe is inserted; the chamber height than the outer chamber, sealed to the top outer chamber, the inner chamber wall a bracket 26, the supporting bracket 8 the lid, the lid has a plurality of drilled holes that line socket 20 includes an auxiliary electrode, thermometer socket 21, the stress load placed specimen port 22, a nitrogen gas inlet tube socket 23, the socket 24 the reference electrode, the carbon dioxide input tube insertion □ 25, between lid 8 and sealing the cassette with a gap □ sealing film; tensile cartridge casing has insulation cover, insulation cover with two rubber bands; stress loading test piece 9 is fixed to the bottom end of the sealing plug 11 cartridge stretching, salt bridges 13 , platinum plate 7 is mounted on the cover member 8 located on both sides of the stress loading test, the salt bridge 13 and platinum 7正对应力加载试件9中央部位,盐桥13连接参比电极12,铂片7连接到辅助电极接口2,应力加载试件9连接到工作电极接口3,参比电极连接到参比电极接口4。 7 is on the 9 central portion of the stress loading the specimen, a salt bridge 13 connected to a reference connected to the auxiliary electrode interfaces 2 electrode 12, a platinum sheet 7, a stress loading test piece 9 is connected to the working electrode interface 3, the reference electrode is connected to the reference electrode Interface 4. 所述的应力腐蚀拉伸机通过拉伸机传动装置18将恒定外加载荷不断施加给应力加载试件。 Said stretching machine by a tensile stress corrosion gear device 18 will continue to constant applied load stress applied to the specimen is loaded.

[0029]本发明的试验过程如下: [0029] Test procedure according to the present invention is as follows:

[0030]在含有厌氧菌的条件下利用本装置进行应力腐蚀试验时,先用硅胶将应力加载试件9固定在拉伸盒底端密封塞11上,待硅胶风干后,将其和盐桥13、铂片7、盒盖8放入通风厨里紫外灭菌15min,然后通风处理15min后,将API培养基和库尔勒土壤模拟溶液在无菌操作台内按1:2的比例混合接菌,倒入拉伸盒内室中6,将盐桥13、铂片7安装在盒盖8上,并与盒盖8—起盖在拉伸盒上,盐桥13和铂片7位于应力加载试件两侧,并正对应力加载试件中央部位,并对盒盖边缘和孔隙处用封口膜进行密封处理。 When the [0030] Stress corrosion test carried out using the present apparatus under anaerobic conditions comprising, first by silica gel stress loading test piece 9 is fixed to the bottom end of the sealing plug 11 of the cartridge stretching, it is dried silica gel, and its salts bridge 13, platinum plate 7, the lid 8 into the fume hood UV sterilization 15min, then ventilation treatment 15min, the media and API Ku'erle simulated solutions in sterile console 1 by: mixing ratio of 2 inoculated , poured stretching chamber box 6, the salt bridge 13, platinum plate 7 is mounted on the lid 8, and the lid cover from 8- stretching cassette, salt bridge 13 and the platinum plate 7 positioned stress loading on both sides of the specimen, and being sealed with the sealing film stress of the central portion of the specimen load, and the lid and the edge of the aperture. 给拉伸盒套上棉布保温罩14,再将整个拉伸盒固定在拉伸杆10上,将温度计和氮气管插入到内室溶液中,开启氮气瓶阀门,以保证整个试验过程为无氧环境。 Stretch cloth to put the cassette insulation cover 14, and the whole stretching rod cartridge 10 is fixed to the stretching, the tube is inserted thermometer and nitrogen into the solution chamber, a nitrogen gas cylinder valve open, the entire testing process to ensure that the oxygen-free surroundings. 用橡胶管16把恒温水浴槽17的进出水口与拉伸盒进出水口15 相连,并用螺钉锁死。 16 with the inlet and outlet temperature bath stretched rubber tube inlet and outlet and the cartridge 17 is connected to 15, and the lock screw. 将拉伸盒进出水端的橡胶管16水平缕直绑在拉伸机支柱上,以免橡胶管16的重力作用给应力加载试件9带来扭矩,影响测量数据准确性。 The stretching out of the water side of the cartridge 16 horizontal straight tubular rubber thread tied to the pillar stretching machine, the rubber tube 16 by gravity so as to bring the stress torque load Specimen 9, affect measurement accuracy of the data. 启动恒温水浴槽17电源,在温度指示表盘中设好温度后,开启循环按钮,则介质溶液边升温,边沿橡胶管16流入拉伸盒入口,在拉伸盒外室5绕流一周后从出水口流出,返回到恒温水浴槽17里。 After starting the supply temperature bath 17, provided a good indication of the temperature at a temperature dial, open loop button, the media was warmed side, the inlet edge of the cartridge 16 into the stretching rubber tube, from the outer chamber after the stretching cassette 5 flows around one week outflow outlet, return to constant temperature water bath 17 years. 水和95%乙醇两种介质溶液在流经拉伸盒外室5时不断将热量传给内室溶液,溶液温度逐渐升高,一段时间后温度计读数稳定在指定刻度上。 Water and 95% ethanol solutions during the two media flowing through the outer chamber 5 constantly drawing the cartridge heat to the chamber, and the solution temperature gradually increased, after a period of time specified in the thermometer scale reading to stabilize. 加热采用的介质溶液为水,制冷采用的介质溶液为95%乙醇,95%乙醇易挥发,需要经常补充。 The solution was heated medium employed is water, the cooling medium employed is a solution of 95% ethanol, 95% ethanol volatile, often need to replenish.

[0031]然后连接三电极,将铂片7连接到辅助电极接口2,将应力加载试件9连接到工作电极接口3,将参比电极12连接到参比电极接口4,然后启动电化学工作站1和应力腐蚀拉伸机19,打开电脑,点击电化学试验图标和慢应变速率应力腐蚀试验图标,设定试验参数,选择保存路径,点击开始按钮,试验开始。 [0031] The three-electrode is then connected to the connector 2 connected to the auxiliary platinum foil electrode 7, the working electrode 9 is connected to the interface stress loading test piece 3, the reference electrode is connected to the interface 4 the reference electrode 12, and then start the electrochemical workstation 1 and the stress corrosion stretching machine 19, turn on the computer, an icon and click on the electrochemical test slow strain rate stress corrosion testing icon set test parameters, select save path, clicking the start button, start of the test. 溶液里侵蚀性阴离子不断对应力加载试件9造成电化学腐蚀,同时,应力腐蚀拉伸机I9通过拉伸机传动装置18将恒定外加载荷不断施加给应力加载试件9,应力加载试件9同时经受着电化学腐蚀和应力腐蚀作用,电化学工作站1和应力腐蚀拉伸机19分别自动记录着应力加载试件9的电化学腐蚀和应力腐蚀数据。 Anion solution was continuously aggressive electrochemical corrosion caused by stress loading test piece 9, while the stress corrosion I9 constant stretching machine continuously applied load stress applied to the specimen 9 by a tensile load gear device 18, a stress loading test piece 9 simultaneously subjected to the electrochemical corrosion and stress corrosion, stress corrosion and electrochemical workstation 1 stretching machine 19 are automatically recorded data electrochemical corrosion and stress corrosion test piece 9 of stress loading. 应力腐蚀试验一般需要持续两天时间,试验过程中,恒温水浴槽17里的介质溶液持续流经拉伸盒外室5,热量源源不断的传给内室溶液,使得内室溶液温度恒定维持在指定刻度。 Stress corrosion testing typically requires two days duration, during the test, in a thermostat water bath 17 medium solution continues to flow through the cartridge stretched outer chamber 5, the heat within the chamber to pass a steady stream of the solution, such that the inner chamber is maintained at a constant temperature of the solution specify the scale. 试验结束后,保存试验图像,关掉电化学工作站1、应力腐蚀拉伸机19和恒温水浴槽17电源开关,打开拉伸盒进出水口15处螺钉,拆卸拉伸盒,将恒温水浴槽17和橡胶管13放至空闲处,清洗拉伸盒内室6,测量应力加载试件9断件尺寸。 After the test, the storage test image, turn off the electrochemical workstation 1, a tensile stress corrosion and temperature bath machine 19 power switch 17, the cassette out of the open draw screw at the outlet 15, drawing the cartridge detached, and the constant temperature water bath 17 rubber tubes 13 to the idle discharge at a tensile cleaning chamber box 6, to measure stress loading test piece member 9 off size.

[0032]以上关于本发明的具体描述,仅用于说明本发明而并非受限于本发明实施例所描述的技术方案。 [0032] specifically described above in relation to the present invention, for merely illustrative and the present invention is not limited by the technical solutions described in the embodiment of the present invention. 本领域的普通技术人员应当理解,仍然可以对本发明进行修改或等同替换, 以达到相同的技术效果。 Those skilled in the art will appreciate still present invention may be modified or equivalents, to achieve the same technical effect. 只要满足使用需要,都在本发明的保护范围内。 Used as long as required, are within the scope of the present invention.

Claims (1)

  1. 1.应力-电化学腐蚀测试装置,其特征在于包括电化学工作站、应力腐蚀拉伸机、恒温水浴槽和拉伸盒,拉伸盒固定在应力腐蚀拉伸机上,拉伸盒进出水口与恒温水浴槽连通;所述的拉伸盒为双室构造,外室走介质溶液,内室放试验溶液;外室顶端封死,内室壁有支架, 支架支撑盒盖,盒盖与盒体间空隙用封口膜密封;应力加载试件固定在拉伸盒底端密封塞上,盐桥、铀片安装在盒盖上位于应力加载试件两侧,盐桥连接参比电极,铂片、应力加载试件及参比电极分别连接到电化学工作站的电极接口;所述的内室高度低于外室;所述的盒盖钻有多个孔洞;所述的盐桥和铂片正对应力加载试件中央部位;所述的拉伸盒外套有保温罩;所述的内室试验溶液中插有温度计和氮气管;所述的恒温水浴槽和拉伸盒之间通过橡胶管连通,橡胶管水平绑在拉伸机支柱上;所述的铀 1. Stress - electrochemical corrosion testing apparatus, comprising electrochemical workstation, stress corrosion stretching machine and stretching temperature bath cartridge, the cartridge is fixed to the tensile stress corrosion stretching machine, and stretched cartridge inlet and outlet temperature communicating water bath; stretching of the dual-chamber cartridge construction, outer chamber go medium solution, the test solution discharge chamber; outer top sealed chamber, between the inner wall has a bracket supporting the lid, the lid and the box body void sealed with parafilm; stress loading test piece fixed to the bottom end of the cartridge sealing plug stretching, salt bridges, uranium mounted on the cover sheet located on both sides of the specimen loading stress, salt bridge reference electrode, a platinum sheet, stress load the specimen and the reference electrode are connected to an interface electrode electrochemical workstation; said inner chamber height than the outer chamber; said plurality of holes are drilled cover; salt bridges and the platinum plate facing stress loading the central portion of the specimen; said cartridge casing has a tensile insulation cover; the test solution in the chamber with a thermometer and a nitrogen line is inserted; communication between the rubber tube through the water bath temperature and tensile cartridge, rubber horizontal tube strapped to the stretcher strut; the uranium 片连接到辅助电极接口,应力加载试件连接到工作电极接口,参比电极连接到参比电极接口;所述的应力腐蚀拉伸机通过拉伸机传动装置将恒定外加载荷不断施加给应力加载试件;所述的恒温水浴槽内采用水和95%乙醇两种介质溶液。 An interface connected to the auxiliary electrode plate, a stress loading test piece connected to the working electrode interface is connected to the reference electrode reference electrode interfaces; the stretcher by stretching stress corrosion gear device applied a constant stress load applied to the load continuously specimen; constant temperature water bath using the two media water and 95% ethanol solutions.
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