SU1538101A1 - Solution for corrosion tests of copper alloys for tendency to selective corrosion - Google Patents
Solution for corrosion tests of copper alloys for tendency to selective corrosion Download PDFInfo
- Publication number
- SU1538101A1 SU1538101A1 SU874286115A SU4286115A SU1538101A1 SU 1538101 A1 SU1538101 A1 SU 1538101A1 SU 874286115 A SU874286115 A SU 874286115A SU 4286115 A SU4286115 A SU 4286115A SU 1538101 A1 SU1538101 A1 SU 1538101A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- corrosion
- solution
- tendency
- copper alloys
- acetic acid
- Prior art date
Links
- 238000005260 corrosion Methods 0.000 title claims description 19
- 230000007797 corrosion Effects 0.000 title claims description 19
- 229910000881 Cu alloy Inorganic materials 0.000 title claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 12
- 239000011780 sodium chloride Substances 0.000 claims abstract description 6
- BDKZHNJTLHOSDW-UHFFFAOYSA-N [Na].CC(O)=O Chemical compound [Na].CC(O)=O BDKZHNJTLHOSDW-UHFFFAOYSA-N 0.000 claims 1
- OLFJVIXNILIZKF-UHFFFAOYSA-N acetic acid;sodium Chemical compound [Na].CC(O)=O.CC(O)=O OLFJVIXNILIZKF-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract 1
- 239000001632 sodium acetate Substances 0.000 abstract 1
- 235000017281 sodium acetate Nutrition 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000008351 acetate buffer Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
Изобретение относитс к физико-химическим исследовани м материалов. Цель изобретени - сокращение длительности испытаний. Раствор содержит , моль/л: хлористый натрий 0,01-0,125, уксусна кислота 0,015-0,20 и уксуснокислый натрий 0,01-0,15.This invention relates to physico-chemical studies of materials. The purpose of the invention is to reduce the duration of the test. The solution contains, mol / l: sodium chloride 0.01-0.125, acetic acid 0.015-0.20 and sodium acetate 0.01-0.15.
Description
Изобретение относитс к области физико-химических исследований материалов , а именно определению склонности к избирательной коррозии, и I может быть использовано в заводских и научно-исследовательских лаборатори х .The invention relates to the field of physico-chemical research of materials, namely the determination of the propensity for selective corrosion, and I can be used in factory and research laboratories.
Цель изобретени - сокращение длительности испытаний.The purpose of the invention is to reduce the duration of the test.
Способ осуществл ют следующим образом.The method is carried out as follows.
Раствор содержит хлористый натрий, уксусную кислоту и ее натриевую соль при следующем соотношении компонентов , моль/л:The solution contains sodium chloride, acetic acid and its sodium salt in the following ratio of components, mol / l:
Хлористый натрий 0,01-0,125Sodium Chloride 0.01-0.125
Уксусна кислота 0,15-0,20Acetic acid 0.15-0.20
УК сусно-кислыйCriminal code is sour
натрий0,10-0,15sodium0.10-0.15
ВодаОстальноеWaterEverything
Предлагаемый раствор разработан на основе проведенных коррозионных исследований технически чистой меди марки МЗ в растворах на основе 0,16 М и 0,13 М СН3СООНа,The proposed solution was developed on the basis of the corrosion studies carried out on technically pure grade MZ copper in solutions based on 0.16 M and 0.13 M CH3COOHa,
рН 4,6,(именуемый ацетатный буфер}, содержащих 0,01; 0,05; 0,075; 0,10; 0,125; 0,15; 0,20 и 0,50 М а С1 в течение 1 сут.pH 4.6, (referred to as acetate buffer} containing 0.01; 0.05; 0.075; 0.10; 0.125; 0.15; 0.20 and 0.50 Ma and C1 for 1 day.
Исследовани провод т на цилиндрических образцах с общей поверхностью 5,5 см2. Образцы креп т на латунных шпильках с тефлоновыми втулками и развепивают в отдельные стаканы , объем раствора в которых составл ет 150 мл. Продукты коррозии снимают 3%-ньтм раствором НС1. Studies were carried out on cylindrical specimens with a total surface of 5.5 cm2. The samples are fastened on brass studs with Teflon sleeves and put into separate glasses, the solution volume of which is 150 ml. Corrosion products are removed with a 3% solution of HC1.
Определение скорости коррозии провод т гравиметрически и по химическому анализу на атомном асборб- ционном спектрофотометре. Отдельно анализу подвергают продукты коррозии, перешедшие в раствор и оставшиес в виде пленок на образце.The corrosion rate is determined gravimetrically and by chemical analysis on an atomic absorption spectrophotometer. Separately, the corrosion products are subjected to analysis, which have passed into the solution and remained in the form of films on the sample.
В отмеченном интервале концентраций в раствор переходит не менее 98% продуктов коррозии. Продукты коррозии медных сплавов в исследуемом растворе хорошо растворимы. НаIn the marked concentration range, at least 98% of corrosion products pass into the solution. The corrosion products of copper alloys in the test solution are well soluble. On
(Л(L
СлSl
со ооwith oo
образцах всех сплавов остаетс от дес тых долей до 1-2% продуктов коррозии от их общей массы. В 0,5 М aQl значительна часть продуктов коррозии (до 45%) находитс на по- в рхности образцов.samples of all alloys remain from tenths to 1-2% of corrosion products of their total mass. In 0.5 M aQl, a significant part of corrosion products (up to 45%) is on the order of samples.
Практически полный переход продуктов коррозии в раствор позвол ет изучать кинетику растворени отдельных составл ющих и сплава в целом путем отбора проб из рабочего раствора в различные времена выдержки, а также использовать этот раствор в качестве модельного при изучении коррозии медных сплавов в режиме днижени морской воды и кавитации, . в тех услови х, когда с поверхности изделий удал ютс продукты коррозии .The almost complete transition of corrosion products into solution allows one to study the kinetics of dissolution of individual components and the alloy as a whole by sampling from the working solution at different exposure times, and also to use this solution as a model for studying corrosion of copper alloys in the mode of seawater subsidence and cavitation , in those conditions when corrosion products are removed from the surface of the products.
Таким образом, предлагаемый раствор обеспечивает быстрое вы вление склонности сплавов к общей и избирательной коррозии, а также получение количественных характеристик растворени сплава и отдельных его сэставл ющих во времени, т.е. кинетику растворени . Кроме того, его ис- прльзование обеспечивает возможность моделировани поведени этих сплавов п(ои их эксплуатации в морской водеThus, the proposed solution provides rapid detection of the tendency of alloys to general and selective corrosion, as well as obtaining quantitative characteristics of the dissolution of the alloy and its individual components over time, i.e. dissolution kinetics. In addition, its use makes it possible to simulate the behavior of these alloys n (and their operation in seawater
5five
00
5five
00
при скорост х потока, превышающих критические, т.е. в режиме срыва поверхностных пленок. Это позвол в использовать предлагаемый раствор в качестве тестового дл ускоренных испытаний на склонность медных сплавов к избирательному растворению.at flow rates exceeding the critical ones, i.e. in the mode of breakdown of surface films. This allowed us to use the proposed solution as a test for accelerated tests for the tendency of copper alloys to selective dissolution.
Сравнительно высокие скорости коррозии при комнатной температуре позвол ют вы вить склонность к избирательной коррозии сплавов на медной основе за 1 сут в отличие от 1 Мее в 0,5 У NaCl.Comparatively high corrosion rates at room temperature make it possible to reveal the tendency to selective corrosion of copper-based alloys in 1 day, as opposed to 1 Me, 0.5 V NaCl.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874286115A SU1538101A1 (en) | 1987-07-20 | 1987-07-20 | Solution for corrosion tests of copper alloys for tendency to selective corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874286115A SU1538101A1 (en) | 1987-07-20 | 1987-07-20 | Solution for corrosion tests of copper alloys for tendency to selective corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1538101A1 true SU1538101A1 (en) | 1990-01-23 |
Family
ID=21320137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874286115A SU1538101A1 (en) | 1987-07-20 | 1987-07-20 | Solution for corrosion tests of copper alloys for tendency to selective corrosion |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1538101A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105407886A (en) * | 2013-03-15 | 2016-03-16 | Cda研究集团股份有限公司 | Topical copper ion treatments and methods of preparing topical copper ion treatments for use in various anatomical regions of the body |
| US10398733B2 (en) | 2013-03-15 | 2019-09-03 | Cda Research Group, Inc. | Topical copper ion treatments and methods of treatment using topical copper ion treatments in the dermatological areas of the body |
| AU2019200641B2 (en) * | 2013-03-15 | 2020-01-30 | Cda Research Group, Inc. | Topical copper ion treatments |
| US10813948B2 (en) | 2013-03-15 | 2020-10-27 | Cda Research Group, Inc. | Methods of treatment using topical copper ion formulations |
| US11000545B2 (en) | 2013-03-15 | 2021-05-11 | Cda Research Group, Inc. | Copper ion compositions and methods of treatment for conditions caused by coronavirus and influenza |
| US11193184B2 (en) | 2019-02-22 | 2021-12-07 | Cda Research Group, Inc. | System for use in producing a metal ion suspension and process of using same |
| US12318406B2 (en) | 2013-03-15 | 2025-06-03 | Cda Research Group, Inc. | Methods of treatment using topical copper ion formulations |
-
1987
- 1987-07-20 SU SU874286115A patent/SU1538101A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Розенфельд И.Л., Жигалова К.А. Ускоренные методы коррозионных испытаний металлов. - М.: Металлурги , 1966, с. 20. * |
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| AU2018247263C1 (en) * | 2013-03-15 | 2021-09-09 | Cda Research Group, Inc. | Topical copper ion treatments and methods of making topical copper ion treatments for use in various anatomical areas of the body |
| US11717535B2 (en) | 2013-03-15 | 2023-08-08 | Cda Research Group, Inc. | Copper ion compositions and methods of treatment for conditions caused by coronavirus and influenza |
| US10398733B2 (en) | 2013-03-15 | 2019-09-03 | Cda Research Group, Inc. | Topical copper ion treatments and methods of treatment using topical copper ion treatments in the dermatological areas of the body |
| AU2019200641B2 (en) * | 2013-03-15 | 2020-01-30 | Cda Research Group, Inc. | Topical copper ion treatments |
| EP3679929A1 (en) * | 2013-03-15 | 2020-07-15 | CDA Research Group, Inc. | Topical copper ion treatments and methods of making topical copper ion treatments for use in various anatomical areas of the body |
| AU2018247263B2 (en) * | 2013-03-15 | 2020-10-08 | Cda Research Group, Inc. | Topical copper ion treatments and methods of making topical copper ion treatments for use in various anatomical areas of the body |
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| US11000545B2 (en) | 2013-03-15 | 2021-05-11 | Cda Research Group, Inc. | Copper ion compositions and methods of treatment for conditions caused by coronavirus and influenza |
| US11007143B2 (en) | 2013-03-15 | 2021-05-18 | Cda Research Group, Inc. | Topical copper ion treatments and methods of treatment using topical copper ion treatments in the oral-respiratory-otic areas of the body |
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| AU2014235105B2 (en) * | 2013-03-15 | 2018-07-12 | Cda Research Group, Inc. | Topical copper ion treatments and methods of making topical copper ion treatments for use in various anatomical areas of the body |
| US12329779B2 (en) | 2013-03-15 | 2025-06-17 | Cda Research Group, Inc. | Copper ion compositions and methods of treatment for conditions caused by coronavirus and influenza |
| CN105407886A (en) * | 2013-03-15 | 2016-03-16 | Cda研究集团股份有限公司 | Topical copper ion treatments and methods of preparing topical copper ion treatments for use in various anatomical regions of the body |
| US11298316B2 (en) | 2013-03-15 | 2022-04-12 | Cda Research Group, Inc. | Topical copper ion treatments and methods of treatment using topical copper ion treatments in the oral-respiratory-otic areas of the body |
| US11318089B2 (en) | 2013-03-15 | 2022-05-03 | Cda Research Group, Inc. | Topical copper ion treatments and methods of making topical copper ion treatments for use in various anatomical areas of the body |
| US12318406B2 (en) | 2013-03-15 | 2025-06-03 | Cda Research Group, Inc. | Methods of treatment using topical copper ion formulations |
| US11253544B2 (en) | 2013-03-15 | 2022-02-22 | Cda Research Group, Inc. | Methods of treatment using topical copper ion formulations |
| US11857514B2 (en) | 2013-03-15 | 2024-01-02 | Cda Research Group, Inc. | Topical copper ion treatments and methods of treatment using topical copper ion treatments in the dermatological areas of the body |
| US12171867B2 (en) | 2013-03-15 | 2024-12-24 | Cda Research Group, Inc. | Topical copper ion treatments and methods of making topical copper ion treatments for use in various anatomical areas of the body |
| US11459638B2 (en) | 2019-02-22 | 2022-10-04 | Cda Research Group, Inc. | System for use in producing a metal ion suspension and process of using same |
| US11193184B2 (en) | 2019-02-22 | 2021-12-07 | Cda Research Group, Inc. | System for use in producing a metal ion suspension and process of using same |
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