WO2009157808A2 - Procédé pour déterminer la durée de vie de matériaux de construction dans des conditions d'action de facteurs agressifs et dispositif de sa mise en oeuvre - Google Patents

Procédé pour déterminer la durée de vie de matériaux de construction dans des conditions d'action de facteurs agressifs et dispositif de sa mise en oeuvre Download PDF

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Publication number
WO2009157808A2
WO2009157808A2 PCT/RU2009/000294 RU2009000294W WO2009157808A2 WO 2009157808 A2 WO2009157808 A2 WO 2009157808A2 RU 2009000294 W RU2009000294 W RU 2009000294W WO 2009157808 A2 WO2009157808 A2 WO 2009157808A2
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WO
WIPO (PCT)
Prior art keywords
sample
aggressive
chamber
medium
pressure
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Ceased
Application number
PCT/RU2009/000294
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English (en)
Russian (ru)
Other versions
WO2009157808A3 (fr
Inventor
Олег Олегович ТУЖИКОВ
Олег Владимирович Ольшанский
Станислав Владимирович МЕДНИКОВ
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Classifications

    • 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
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/002—Test chambers
    • 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
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • 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
    • 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
    • G01N2203/023—Pressure
    • 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
    • G01N2203/0236—Other environments
    • G01N2203/024—Corrosive
    • 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
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0278—Thin specimens
    • G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes

Definitions

  • the invention relates to the development of equipment for testing structural materials for durability when exposed to various aggressive factors, for example, aggressive environments or penetrating radiation.
  • a known method for determining the durability of elastic structural materials is that a sample of the test material is subjected to uniaxial tensile deformation by 20-30% of its original length at a temperature corresponding to the operating conditions of this material, and can withstand 300 ⁇ 5 seconds, after which the value of the mechanical stress in the sample is determined. Then the sample is heated to a certain temperature, cooled to a temperature corresponding to the operating conditions, and again the quantity of mechanical stress in the sample is determined.
  • ⁇ TE ⁇ is the time until a critical stress arises in the sample material at a temperature corresponding to its operating conditions
  • ? t is the time until a critical stress arises in the sample material at the temperature of its testing
  • T is the temperature to which the sample was heated
  • TE is the temperature corresponding to the operating conditions of the material
  • m is a coefficient of 4.56 '10 3 for the air environment and 4.18 * 10 3 for the liquid environment (Invention of the USSR N ° 1573389, published in 1990, MKP index GO W 3/18).
  • a known method for determining the durability of elastic structural materials is that a sample made from the test material is stretched uniaxially at a temperature T above room temperature, the time to failure of the sample is measured, the activation energy is calculated, and the material durability is estimated based on the activation energy. Preliminarily determine the creep temperature of the material, the loading of the sample is carried out at temperatures between the creep temperatures. The uniaxial tension rate is selected from the condition of guaranteed fracture of the sample after 100 to 400 seconds of loading.
  • the activation energy is calculated from the following ratio:
  • R is the universal gas constant
  • the durability of the material is determined by the formula
  • a device for determining the degree of aggressiveness of a liquid with respect to a test material containing an indicator sample made of the test material and a mechanism for recording the moment of destruction of the indicator sample (USSR Invention No. 1791753, published in 1991, MKP index G01N_> 17/00).
  • the aim of the invention is to create a method for determining durability under the influence of aggressive factors of mechanically strained elastic structural materials, free from the above disadvantages, as well as a device for implementing this method.
  • the method for determining the durability of elastic structural materials is that a round flat specimen in the form of a flat disk is fixed in the peripheral part along an annular contour using a connecting and sealing device inside a thermostatically controlled chamber.
  • the sample is subjected to pressure created by a gas or liquid medium that is inert with respect to the sample material.
  • a gas or liquid medium that is inert with respect to the sample material.
  • the sample is exposed to an aggressive environment and / or other aggressive influences, for example, penetrating radiation, laser or other electromagnetic radiation.
  • the kinetics of the fracture of the sample is recorded, characterized by the time dependence of the decrease in pressure in the injection chamber, due to deflection of the sample due to loss of rigidity during corrosion, under specified test conditions (temperature, pressure on the sample, mechanical stress in the sample, deformed by the pressure of a liquid or gaseous medium from the injection chamber, the concentration of the aggressive component in the environment of the reaction chamber, the intensity of other aggressive factors affecting the image from the reaction chamber, eg., the dose rate of penetrating radiation).
  • the criteria for the durability of the sample material are calculated - the total time before the destruction of the sample, the time before the destruction of the sample, the time during which the sample is destroyed.
  • a device for implementing the method described above comprises a thermostatic chamber divided by a connecting-sealing device with a sample fixed in an annular circuit into two parts — an injection chamber and a reaction chamber.
  • An inert medium pressure source, sources of aggressive media, an inert medium flow sensor, sources of other aggressive influences e.g.
  • thermostatic control unit with temperature sensor, input unit , output and analysis of an aggressive environment
  • the invention is illustrated in the figure, which shows a General block diagram of a device for implementing the proposed method. determining the durability of structural materials under the influence of aggressive factors.
  • the device comprises a pressure chamber 1 and a reaction chamber 2, separated by a sample 3 in the form of a round flat disk, fixed along the outer contour using a connecting and sealing device 4.
  • the pressure of a liquid or gaseous inert medium acting on the sample from the side of the injection chamber is supplied from the pressure source of the inert medium 5 and is controlled by a pressure sensor 6 of any known type.
  • the inert flow rate is controlled by an inert flow rate sensor 7 of any known type.
  • Aggressive medium (liquid or gaseous), acting on the sample during the test, is supplied to the reaction chamber from the source of the aggressive medium 8 and is controlled by the input, output and analysis of the aggressive medium 9.
  • the input, output and analysis of the aggressive medium 9 contains sensors the concentration of aggressive medium (any known type) at the inlet and outlet of the reaction chamber, the flow sensor of the aggressive medium (any known type), as well as other sensors and devices that allow quantitative determination to increase the intensity of aggressive action on the sample.
  • the injection and reaction chambers are placed in a thermostatic chamber 13, equipped with a temperature sensor 14 of any known type, the temperature inside the thermostatic chamber is controlled by the temperature control unit 15.
  • the device also contains a unit for recording, analyzing and controlling the operation of the device 16 connected to an inert medium pressure source, with an inert medium flow sensor, with an inert medium pressure sensor 5, with an inert medium flow sensor 7, with a temperature sensor 14 in a thermostatic chamber, with a block temperature control 15, with a block input, output and analysis of aggressive environment 9, with a device for controlling sources of other aggressive influences 11, with sensors for recording intensities of other aggressive influences 12.
  • the block of input, output and analysis of the aggressive environment may contain a device for the destruction of the aggressive environment, installed at the outlet of the reaction chamber.

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  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

La présente invention concerne des procédés destinés à tester des matériaux de construction. Le procédé de cette invention consiste à fixer un échantillon rond et plat dans un dispositif de connexion et d’étanchéité par sa circonférence, faire subir un traitement thermostatique audit échantillon dans une chambre thermostatique qui est divisée en des chambres de travail et d'injection au moyen du dispositif de connexion et d’étanchéité par l’ échantillon fixé le long de sa circonférence, exposer l’échantillon du côté de la chambre d'injection à la pression d’un milieu liquide ou gazeux qui est neutre par rapport au matériau de l’échantillon testé, l’échantillon pouvant être soumis, du côté de la chambre de travail, à l’action de milieux agressifs et/ou à d’autres facteurs agressifs, et mesurer le temps nécessaire pour la destruction dudit échantillon dans les conditions spécifiées (la température et la contrainte mécanique dans l’échantillon déformé déformation par la pression du milieu dans la chambre d'injection). Les données ainsi obtenues sont utilisées pour le calcul de la durée de vie du matériau. Un dispositif pour la mise en oeuvre de ce procédé est également décrit dans l’invention. Le présente invention permet de s’utiliser avec une seule et même installation grâce à la modification des paramètres de charge de l’échantillon, pour tester la durée de vie de matériaux de construction dans un milieu agressif à contrainte mécanique constante ou à contrainte mécanique variant selon une loi prédéterminée, à une déformatio
PCT/RU2009/000294 2008-06-23 2009-06-10 Procédé pour déterminer la durée de vie de matériaux de construction dans des conditions d'action de facteurs agressifs et dispositif de sa mise en oeuvre Ceased WO2009157808A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2008125570 2008-06-23
RU2008125570/28A RU2396540C2 (ru) 2008-06-23 2008-06-23 Способ определения долговечности конструкционных материалов в условиях воздействия агрессивных факторов и устройство для его осуществления

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WO2009157808A2 true WO2009157808A2 (fr) 2009-12-30
WO2009157808A3 WO2009157808A3 (fr) 2010-02-18

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102466586A (zh) * 2010-11-12 2012-05-23 中国建筑材料科学研究总院 钢筋混凝土耐久性试验用疲劳加载装置
CN102466596A (zh) * 2010-11-12 2012-05-23 中国建筑材料科学研究总院 钢筋混凝土耐久性试验用恒定加载的装置
CN107817165A (zh) * 2017-11-28 2018-03-20 嘉峪关天源新材料有限责任公司 一种用于测定钢材在腐蚀环境中应力腐蚀行为的装置
CN109520878A (zh) * 2018-12-26 2019-03-26 西南石油大学 高温高压腐蚀介质迁移动态腐蚀装置
RU2709470C1 (ru) * 2019-01-23 2019-12-18 Федеральное государственное бюджетное учреждение "Научно-исследовательский институт строительной физики Российской академии архитектуры и строительных наук" (НИИСФ РААСН) Способ определения долговечности кирпичной кладки
RU2757634C1 (ru) * 2021-03-15 2021-10-19 федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский горный университет» Способ оценки стойкости трубопроводных сталей к "канавочной" коррозии
CN118090408A (zh) * 2024-04-22 2024-05-28 中国原子能科学研究院 放射性样品应力腐蚀测试系统
RU2848683C1 (ru) * 2025-03-31 2025-10-21 федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет императрицы Екатерины II" Способ оценки стойкости трубопроводных углеродистых сталей к язвенной коррозии под напряжением

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU104551A1 (ru) * 1955-12-09 1956-11-30 А.В. Рябченков Способ испытани металла на длительную прочность при коррозии под напр жением
SU1589148A1 (ru) * 1988-10-18 1990-08-30 Институт ядерной энергетики АН БССР Способ испытани материалов при повышенных температурах
RU2086949C1 (ru) * 1994-01-11 1997-08-10 Физико-энергетический институт Устройство для испытания образцов материалов на кручение в ядерном реакторе
PL180097B1 (pl) * 1996-09-12 2000-12-29 Lubelska Polt Sposób i urządzenie do badania odporności materiałów na zużycie erozyjne
RU2320972C2 (ru) * 2005-11-11 2008-03-27 Станислав Владимирович МЕДНИКОВ Способ определения долговечности конструкционных материалов в агрессивных средах и устройство для его осуществления

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102466586A (zh) * 2010-11-12 2012-05-23 中国建筑材料科学研究总院 钢筋混凝土耐久性试验用疲劳加载装置
CN102466596A (zh) * 2010-11-12 2012-05-23 中国建筑材料科学研究总院 钢筋混凝土耐久性试验用恒定加载的装置
CN107817165A (zh) * 2017-11-28 2018-03-20 嘉峪关天源新材料有限责任公司 一种用于测定钢材在腐蚀环境中应力腐蚀行为的装置
CN109520878A (zh) * 2018-12-26 2019-03-26 西南石油大学 高温高压腐蚀介质迁移动态腐蚀装置
RU2709470C1 (ru) * 2019-01-23 2019-12-18 Федеральное государственное бюджетное учреждение "Научно-исследовательский институт строительной физики Российской академии архитектуры и строительных наук" (НИИСФ РААСН) Способ определения долговечности кирпичной кладки
RU2757634C1 (ru) * 2021-03-15 2021-10-19 федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский горный университет» Способ оценки стойкости трубопроводных сталей к "канавочной" коррозии
CN118090408A (zh) * 2024-04-22 2024-05-28 中国原子能科学研究院 放射性样品应力腐蚀测试系统
RU2848683C1 (ru) * 2025-03-31 2025-10-21 федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет императрицы Екатерины II" Способ оценки стойкости трубопроводных углеродистых сталей к язвенной коррозии под напряжением

Also Published As

Publication number Publication date
RU2396540C2 (ru) 2010-08-10
WO2009157808A3 (fr) 2010-02-18
RU2008125570A (ru) 2009-12-27

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