High-temperature alloy protecting coating and method of preparing the same
A protective coating and high-temperature alloy technology, which is applied in the field of metal and enamel composite coatings and high-temperature alloy protective coatings, can solve the problems of restricting the practical application of coatings and reducing the thermal shock life of coatings, and achieve high-temperature oxidation resistance and high-temperature protection. The effect of hot corrosion ability, excellent thermal shock performance and excellent high temperature corrosion resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] Embodiment 1: Apply metal and enamel composite coating thermal shock experiment on the K38G superalloy with bonding layer
[0025] Sample cast K38G. The size is 15mm×10mm×3mm. Spray 60% (weight percentage) of MCrAlY-enamel composite powder with a particle size distribution of 0.1-15 μm on the sample with the bonding layer. The composition of MCrAlY is Ni-25Co-20Cr-8Al-4Ta-0.6Y (weight percent). The softening point of enamel is about 850°C, and the coefficient of thermal expansion is 10.0×10 -6 K -1 . A metal-enamel composite coating with a thickness of 20 μm was prepared by sintering at 1000° C. for 30 minutes. After 100 thermal shock tests at 1000°C, the coating did not peel off significantly, showing excellent thermal shock performance (see Figures 4 and 5).
Embodiment 2
[0028] Embodiment 2: Apply metal-enamel composite coating high-temperature oxidation experiment on the K38G superalloy with bonding layer
[0029] Sample cast K38G. The size is 15mm×10mm×3mm. Spray 60% (weight percentage) of MCrAlY-enamel composite powder with a particle size distribution of 0.1-15 μm on the sample with the bonding layer. The composition of MCrAlY is Ni-25Co-20Cr-8Al-4Ta-0.6Y (weight percent). The softening point of enamel is about 850°C, and the coefficient of thermal expansion is 10.0×10 -6 K -1 . Sinter at 1000°C for 30 minutes to prepare a metal-enamel composite coating with a thickness of 20 μm. Oxidation at 1000°C, the weight gain of the coating is smaller than that of the MCrAlY coating prepared by arc ion plating (see Figure 6), and the coating remains intact after oxidation for 100 hours (see Figure 8), which significantly improves the high temperature oxidation performance of the substrate.
PUM
Property | Measurement | Unit |
---|---|---|
softening point | aaaaa | aaaaa |
particle diameter | aaaaa | aaaaa |
softening point | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com