FIELD: chemistry.
SUBSTANCE: invention relates to protection of intermetallic alloys based on titanium aluminides against high temperature oxidation, and may be used to protect turbine or compressor blades operating at temperatures up to 800°C. The method comprises product treatment in a solution of phosphoric or phosphorous acid by immersion, and air drying. Moreover, a 5-molar solution of phosphoric or phosphorous acid is used, wherein the product is held for 23-25 hours, then washed by water and dried at a temperature of 110-130°C for 2-4 hours.
EFFECT: increased resistance of the intermetallic alloy based on titanium aluminide oxidation to high temperatures of up to 800 degrees due to surface modification by phosphates, reducing the oxide film growth rate.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING TITANIUM ALLOY MULTILAYER PROTECTIVE COATING OF TURBOMACHINE BLADES | 2017 |
|
RU2667191C1 |
| METHOD OF APPLYING IONIC-PLASMA COATING ON ARTICLES FROM TITANIUM ALLOYS | 2010 |
|
RU2445407C1 |
| COMPOSITION METALLIC MATERIAL ARTICLE PRODUCTION PROCESS | 2005 |
|
RU2283726C1 |
| METHOD OF DEPOSITION OF PROTECTIVE COATINGS ON DETAILS MADE OUT OF REFRACTORY ALLOYS | 2000 |
|
RU2264480C2 |
| METHOD FOR SPUTTERING OF PROTECTIVE COATINGS FOR AN INTERMETALLIC ALLOY BASED ON TITANIUM GAMMA-ALUMINIDE | 2019 |
|
RU2716570C1 |
| METHOD OF PRODUCING AIRTIGHT CERAMIC-METAL SEAL USING COMPENSATING ELEMENT | 2010 |
|
RU2455263C2 |
| INTERMETALLIC TITANIUM-BASED ALLOY AND ARTICLE MADE THEREFROM | 2015 |
|
RU2606368C1 |
| METHOD FOR DEPOSITING A HEAT-RESISTANT COATING BASED ON IRON ALUMINIDE ON THE SURFACE OF PRODUCTS OPERATING IN CONDITIONS OF HIGH-TEMPERATURE GAS CORROSION | 2021 |
|
RU2772342C1 |
| METHOD OF FABRICATING ITEM OUT OF HEAT RESISTANT COMPOSITE MATERIAL | 2006 |
|
RU2346997C2 |
| SHEET MATERIAL MADE OF A TITANIUM ALLOY AND EXHAUST SYSTEM COMPONENT | 2022 |
|
RU2785110C1 |
