SU1753334A1 - Method of investigating microstructure of metals and their alloys - Google Patents
Method of investigating microstructure of metals and their alloys Download PDFInfo
- Publication number
- SU1753334A1 SU1753334A1 SU884628032A SU4628032A SU1753334A1 SU 1753334 A1 SU1753334 A1 SU 1753334A1 SU 884628032 A SU884628032 A SU 884628032A SU 4628032 A SU4628032 A SU 4628032A SU 1753334 A1 SU1753334 A1 SU 1753334A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- electropolishing
- transition zone
- alloys
- metals
- microstructure
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 6
- 239000002184 metal Substances 0.000 title claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 5
- 239000000956 alloy Substances 0.000 title claims abstract description 5
- 150000002739 metals Chemical class 0.000 title claims abstract description 5
- 230000007704 transition Effects 0.000 claims abstract description 8
- 238000004458 analytical method Methods 0.000 claims abstract description 5
- 238000003754 machining Methods 0.000 claims abstract description 3
- 230000015572 biosynthetic process Effects 0.000 claims abstract 3
- 238000003486 chemical etching Methods 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 3
- 239000011733 molybdenum Substances 0.000 abstract description 3
- 238000001953 recrystallisation Methods 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005088 metallography Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
Изобретение относитс к способу вы влени макроструктуры металлов и их сплавов и может быть применено в различных област х промышленности дл изучени и контрол формообразующих процессов, ре- кристаллизационного обжига и т.д. Цель изобретени - вы вление пространственной структуры зерен образца. После первой электрополировки всей поверхности провод т вторую электрополировку части этой поверхности на глубину, превышающую максимальный размер зерна, с образованием переходной зоны между двум плоскост ми, полученными при первой и второй электропо- лировках, и далее осуществл ют анализ в области переходной зоны. Способ включает механическую обработку, первую электрополировку всей поверхности и вторую электрополировку части этой поверхности на глубину, превышающую максимальный размер зерна, с образованием переходной зоны между двум плоскост ми, полученными при первой и второй электрополировках, и далее осуществл ют анализ в области переходной зоны Предложенным способом вы влена пространственна зеренна структура молибдена марки М4,The invention relates to a method for detecting the macrostructure of metals and their alloys and can be applied in various fields of industry for studying and controlling formative processes, recrystallization calcination, etc. The purpose of the invention is to reveal the spatial structure of the sample grains. After the first electropolishing of the entire surface, a second electropolishing of a part of this surface is carried out to a depth exceeding the maximum grain size, with the formation of a transition zone between two planes obtained by the first and second electropolishing, and further analysis is performed in the transition zone. The method includes machining, first electropolishing of the entire surface and second electropolishing of a part of this surface to a depth exceeding the maximum grain size, with the formation of a transition zone between two planes obtained by the first and second electropolishing, and further analysis is performed in the transition zone in the proposed way You have identified the spatial grain structure of molybdenum grade M4,
Description
Изобретение относитс к области металлографии металлов и их сплавов, в частности к способу вы влени микроструктуры металлов и их сплавов, и может быть применено в разных област х промышленности дл изучени и контрол формообразующих процессов, рекристаллизационного отжига и т.д.The invention relates to the field of metallography of metals and their alloys, in particular, to the method of detecting the microstructure of metals and their alloys, and can be applied in various industries to study and control formative processes, recrystallization annealing, etc.
Цель изобретени - вы вление пространственной структуры зерен образца,The purpose of the invention is the detection of the spatial structure of the sample grains,
Пример. Предложенный способ опробован дл вы влени микроструктуры молибдена марки МЧ. Обрабатывалс образец размером 1,2x20x0,6 мм. Поверхность образца (1,2x20 мм) подвергалась механической обработке с помощью шлифованных бумаг и алмазных паст различной зернистости . Затем осуществл лась перва электрополировка всей механически обработаннойExample. The proposed method was tested to determine the microstructure of molybdenum brand MCH. A sample of 1.2x20x0.6 mm was processed. The sample surface (1.2x20 mm) was machined with ground papers and diamond pastes of various grain sizes. Then the first electropolishing of the whole machined
поверхности в электролите - 10-15 об.% серной кислоты в метаноле. Напр жение на электродах составл ло 10-13 В, врем обработки 1-3 мин. Далее в том же самом электролите при тех же значени х напр жени проводитс втора электрополировка половины анализируемой поверхности на глубину пор дка 30 мкм, т.е. на глубину, превышающую максимальную величину зерна молибдена, непрошедшего рекри- сталлизованный отжиг.surfaces in the electrolyte - 10-15 vol.% of sulfuric acid in methanol. The voltage on the electrodes was 10-13 V, the processing time was 1-3 minutes. Then, in the same electrolyte, at the same voltage values, the second electropolishing of half of the analyzed surface is carried out to a depth of about 30 µm, i.e. to a depth exceeding the maximum grain size of molybdenum that has not passed recrystallized annealing.
После проведени двух электрополиро- вок осуществл етс химическое травление всей анализируемой поверхности в реактиве , содержащем на 100 мл дистиллированной воды 15 г красной кров ной соли и 2 г гидрооксида натри . Врем травлени составл ло 20 г. Подготовленный таким образом образец исследовалс на растровомAfter two electric polishes are carried out, chemical etching of the entire analyzed surface is carried out in a reagent containing 15 g of red blood salt and 2 g of sodium hydroxide per 100 ml of distilled water. The etching time was 20 g. The sample prepared in this way was tested on a raster
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Сл)Sl)
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СА)SA)
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микроскопе при увеличении от 30 до 5000 крат в области переходной зоны между двум плоскост ми, образованными при второй электрополировке за счет эффекта смачивани на границе электролит-воздух. Предложенный способ в отличие от известного позвол ет в переходной зоне вы вить пространственную зеренную структуру, что, в свою очередь, дает возможность повысить тбч ко сть анализа. В известном способе, включа ю щ механическую обработку, электррполировку, химическое травление с последующим анализом обработанной поверхности анализируемого образца , об истинном размере и форме зерна анализируемого металла судить затруднительно .the microscope at a magnification of 30 to 5000 times in the region of the transition zone between two planes formed in the second electropolishing due to the wetting effect at the electrolyte-air interface. The proposed method, in contrast to the known one, makes it possible to reveal the spatial grain structure in the transition zone, which, in turn, makes it possible to increase the TBF of the analysis. In the known method, including machining, electroplating, chemical etching with subsequent analysis of the treated surface of the analyzed sample, it is difficult to judge the true size and shape of the grain of the analyzed metal.
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5five
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884628032A SU1753334A1 (en) | 1988-12-28 | 1988-12-28 | Method of investigating microstructure of metals and their alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884628032A SU1753334A1 (en) | 1988-12-28 | 1988-12-28 | Method of investigating microstructure of metals and their alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1753334A1 true SU1753334A1 (en) | 1992-08-07 |
Family
ID=21418606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884628032A SU1753334A1 (en) | 1988-12-28 | 1988-12-28 | Method of investigating microstructure of metals and their alloys |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1753334A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2525320C1 (en) * | 2013-02-15 | 2014-08-10 | Открытое акционерное общество "Научно-производственное предприятие "Пружинный Центр" | Timely determination of microstructure quality for resilient element titanium alloy |
| RU2535015C2 (en) * | 2009-08-28 | 2014-12-10 | Снекма | Detection method of impurities of titanium alloys of two-phase type with alpha-phase and beta-phase |
| CN107643204A (en) * | 2017-08-09 | 2018-01-30 | 中北大学 | A kind of cochrome etchant and the method using its acquisition metallographic structure |
-
1988
- 1988-12-28 SU SU884628032A patent/SU1753334A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР №966546, кл. G01 N 1/32, 1982. Авторское свидетельство СССР 1019268, кл. G01 N 1/28, 1983 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2535015C2 (en) * | 2009-08-28 | 2014-12-10 | Снекма | Detection method of impurities of titanium alloys of two-phase type with alpha-phase and beta-phase |
| RU2525320C1 (en) * | 2013-02-15 | 2014-08-10 | Открытое акционерное общество "Научно-производственное предприятие "Пружинный Центр" | Timely determination of microstructure quality for resilient element titanium alloy |
| CN107643204A (en) * | 2017-08-09 | 2018-01-30 | 中北大学 | A kind of cochrome etchant and the method using its acquisition metallographic structure |
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