High Temperature Alloy/Nickel Base Alloy/Kovar/Monel Alloy/Alloy/Nickel Alloy.
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Folding environment high temperature alloy.
In many areas of the civil industry, the component materials in service are in high temperature corrosive environment. In order to meet the needs of the market, the series of high-temperature alloy is classified according to the material's use environment.
1. High temperature alloy mother alloy series.
2. Anti-corrosion high temperature alloy plate, rod, silk, belt, pipe and forgings.
3. High strength, corrosion resistant high temperature alloy bar, spring wire, welding wire, plate, strip, forging.
4. Corrosion resistant series products.
5. Environmental corrosion resistant, hard surface wear-resistant high temperature alloy series.
6. Special precision casting parts (vane, supercharger turbine, turbine rotor, guide, instrument joint)
7. Glass wool production centrifuge, high temperature axis and auxiliary parts 8, steel billet heating furnace with cobalt base alloy heat resistant pad and slide rail.
9. Valve seat ring
10. Casting "U" shaped resistance band.
11. Centrifugal casting series.
12. Nano materials series products.
13. Light weight high-temperature structural materials.
14. Functional materials (expansion alloy, high temperature elastic alloy, constant elastic alloy series)
15. Biomedical materials series products.
16. Target material series products for electronic engineering.
17. Power plant nozzle series products.
18. Staili alloy wear resistant film.
19. Ultra-high temperature anti-oxidation corrosion furnace roller and radiation tube.
Fold solid solution strengthening.
Add elements of different size with matrix metal atoms (chromium, tungsten, molybdenum, etc.) cause the distortion of the matrix metal lattice, join can reduce the alloy substrate can stacking fault elements, such as cobalt and join will slow down the rate of diffusion of matrix elements (tungsten, molybdenum, etc.), to strengthen the matrix.
Folded precipitation reinforcement
Through aging treatment, the second phase of the supersaturated solid solution was precipitated out, and the alloy was strengthened. Gamma 'matrix with the same, all is face-centered cubic structure, the lattice constant and the substrate, and with crystal lattice, so gamma phase are tiny particles in the matrix can be homogeneous precipitation, hinder dislocation motion, and have a significant reinforcement. A is the A3B metal intermetallic compound, A for nickel, cobalt, B for aluminum, titanium, niobium, tantalum, vanadium, tungsten, and chrome, molybdenum, and iron can be both A and B. The typical gamma-phase of nickel base alloy is Ni3(Al,Ti). The strengthening effect of the gamma phase can be enhanced through the following channels:
To increase the number of gamma phases;
In order to obtain the reinforcing effect of the coherent distortion, the gamma is suitable for the matrix.
By adding niobium, tantalum and other elements, the anti-phase domain boundary can be increased to improve its resistance to dislocation cutting.
High temperature alloy
High temperature alloy
Force;
In addition, the intensity of gamma is increased by adding elements such as cobalt, tungsten and molybdenum. It is composed of Ni3Nb. Due to the large mismatch between the phase and the matrix, a large degree of coherent distortion can be induced, and the alloy can obtain a high yield strength. But more than 700 ºC, the reinforcement effect is decreased obviously. Cobalt - based high - temperature alloys are generally non - active and are reinforced with carbide.
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