SU602603A1 - Composition for chromoalumosilication of metals and alloys - Google Patents
Composition for chromoalumosilication of metals and alloysInfo
- Publication number
- SU602603A1 SU602603A1 SU742079066A SU2079066A SU602603A1 SU 602603 A1 SU602603 A1 SU 602603A1 SU 742079066 A SU742079066 A SU 742079066A SU 2079066 A SU2079066 A SU 2079066A SU 602603 A1 SU602603 A1 SU 602603A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- alloys
- composition
- metals
- chromoalumosilication
- aluminum
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/30—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes using a layer of powder or paste on the surface
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Description
(54) СОСТАВ ДЛЯ ХРОМО7 ЛЮМОСИЛИЦИРОВАНИЯ МЕТАЛЛОВ И СПЛАВОВ(54) COMPOSITION FOR CHROMO7 LUMOSILITATION OF METALS AND ALLOYS
Изобретение ртносит-с к области химико-термической обработки металлов и сплавов и может примен тьс§г дл . защиты деталей от воздействи высоких температур и агрегивных сред.. Известен состав дл хромоалюмосилидировани металлов и сплавов, содер жащий порошки алюмини , хрома/ j peMни1 в растворе нитроклетчатки . . Недостатком данного состава вл етс то, что процесс насыщени длителен ( ч) . Цель изобретени - интенсификаци процесса насыщени . Это достигаетс тем, что вместо алюминиевого порошка в качестве алюмосодержащего вещества, примен ют алюминиевую пудру. Такой эффект-.днтенси .фикации достигаетс благодар особенности химического состава пудры, наличи в ней 10-18% окиси алюмини , 3-8% жировых добавок, а также чешуйча той формы частиц пудры. Процесс хромо алюмосилицировани провод т следующим образом . Поверхность образца очищают от загр знений и на него нанос т осадок суспензии в количестве 0,005-0,5 г/см затем образец высушивают при 100-150 С в течение 10-40 мин дл удалени летучих составл ющих осадка. После просушки образцы обрабатывают в обычной атмосфере в печи при 750-1.050 С в течение10-30 мин и охлаждеиот на воздухе или. в воде. Оотавщи.ес . на образцах продукты реакции смывают водой. . В процессе нанесени суспензии на деталь чещуйчатые частицы.пудры плотно прилегают к поверхности, и после сущки осадок состоит из мельчайших частиц алюмини , покрытых слоемAPg s и скрепленных остатками св зки. Толщина получаемого покрыти в основном определ етс величиной нанесенного на деталь осадка суспензии. В табл.1 приведены 1-3 составы дл хромоалюмосилицировани металлов и сплавов. Результаты определени величины насыщаемого сло и микротвердости при обработке 1100°С в течение 20 мин представлены в табл.2. Обработка в данном составе позвол ет сократить врем насыщени в 810 раз и получить хорошие свойства по жаростойкости хромоалюмосилицидных покрытий.The invention of mercury is in the field of chemical heat treatment of metals and alloys and can be applied for. protection of parts from exposure to high temperatures and aggregate media. A composition for chromoaluminosylation of metals and alloys, containing powders of aluminum, chromium / j peMni1 in a solution of nitrocellulose, is known. . The disadvantage of this composition is that the saturation process is long (h). The purpose of the invention is to intensify the saturation process. This is achieved by using aluminum powder instead of aluminum powder as an alumina-containing substance. Such an effect-modification is achieved due to the peculiarities of the chemical composition of the powder, the presence of 10-18% alumina in it, 3-8% of fat additives, as well as the scaling of that form of powder particles. The process of chromo-aluminumizing is carried out as follows. The sample surface is cleaned of impurities and a suspension of suspension is applied to it in an amount of 0.005-0.5 g / cm, then the sample is dried at 100-150 ° C for 10-40 minutes to remove volatile components of the precipitate. After drying, the samples are treated in a conventional atmosphere in an oven at 750–1.050 ° C for 10–30 min and cooled with air or. in water. Unsubmitted on the samples, the reaction products are washed off with water. . In the process of applying the slurry to the part, particulate particles. The powder tightly adheres to the surface, and after the substance the sediment consists of the smallest aluminum particles covered with a layer of APg s and bonded with remnants of a bond. The thickness of the resulting coating is mainly determined by the amount of slurry deposited on the part. Table 1 shows 1-3 compositions for the chromium aluminization of metals and alloys. The results of determining the value of the saturable layer and the microhardness during processing at 1100 ° C for 20 minutes are presented in Table 2. The treatment in this formulation makes it possible to shorten the saturation time by a factor of 810 and to obtain good heat resistance properties of chromium aluminosilicide coatings.
порошки: хрома, кремни , алюмосодержацее вещество и св зку, отличающ и и с тем, что, с целью интенсификации процесса насыщени , в качестве алюмосодержащего вещества испольэуtoT алюминиевую пудру при следующем соотношении компонентов, вес.%:powders: chromium, silicon, aluminum-containing substance and binder, which is also distinguished by the fact that, in order to intensify the saturation process, aluminum powder is used as an aluminum-containing substance in the following ratio of components, wt.%:
Хром10-40Chrome 10-40
Кремний 5-15Silicon 5-15
Таблица 1Table 1
Таблица 2table 2
2. Состав по пЛ, о т л и чаю щ и и с тем, что в качестве св зки используют раствор цапонлака в органическом растворителе. 2. Composition according to pl, tl and tea, and with the fact that as a binder, a solution of zaponlak in an organic solvent is used.
Источники-информации, прин тые воSources of information taken in
внимание при экспертизе: - 1. Авторское свидетельство СССР I 259598, кл. С 23 С 17/00, 1970.attention in the examination: - 1. USSR Copyright Certificate I 259598, cl. C 23 C 17/00, 1970.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU742079066A SU602603A1 (en) | 1974-11-25 | 1974-11-25 | Composition for chromoalumosilication of metals and alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU742079066A SU602603A1 (en) | 1974-11-25 | 1974-11-25 | Composition for chromoalumosilication of metals and alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
SU602603A1 true SU602603A1 (en) | 1978-03-13 |
Family
ID=20601952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU742079066A SU602603A1 (en) | 1974-11-25 | 1974-11-25 | Composition for chromoalumosilication of metals and alloys |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU602603A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999042633A1 (en) * | 1998-02-23 | 1999-08-26 | MTU MOTOREN- UND TURBINEN-UNION MüNCHEN GMBH | Method for producing a slip layer which is resistant to corrosion and oxidation |
-
1974
- 1974-11-25 SU SU742079066A patent/SU602603A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999042633A1 (en) * | 1998-02-23 | 1999-08-26 | MTU MOTOREN- UND TURBINEN-UNION MüNCHEN GMBH | Method for producing a slip layer which is resistant to corrosion and oxidation |
US6440499B1 (en) | 1998-02-23 | 2002-08-27 | Mtu Aero Engines Gmbh | Method for producing a slip layer which is resistant to corrosion and oxidation |
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