What is the density of INCONEL 825?
Inconel625 alloy is a solid solution strengthened nickel-based deformed high-temperature alloy with molybdenum and niobium as the main strengthening elements. It has excellent corrosion resistance and oxidation resistance. It has good tensile properties and fatigue properties from low temperature to 980°C, and is resistant to Stress corrosion under salt spray atmosphere, so it can be widely used in the manufacture of aerospace engine parts, aerospace structural components and chemical equipment. The alloy is used in the manufacture of engine casings, guide blades, mounting edges and cylinders, fuel manifolds and other parts. It has passed the practical application assessment, and the maximum operating temperature is 950°C; the alloy will have a certain age hardening phenomenon after long-term use at 550-700°C, resulting in some decrease in the plasticity of the alloy.
1. Metallographic structure of Inconel625 alloy
Inconel625 has a face-centered cubic lattice structure. When kept at about 650°C for a long enough time, carbon particles and unstable quaternary phase will precipitate and be converted into a stable Ni3 (Nb, Ti) orthorhombic lattice phase. After solid solution strengthening, the molybdenum and niobium components in the nickel-chromium matrix will improve the mechanical properties of the material, but the plasticity will be reduced.
2. Corrosion resistance of Inconel 625 alloy
Inconel625 alloy shows good corrosion resistance in many media. Excellent resistance to pitting, crevice corrosion, intergranular corrosion and erosion in chloride media. It has good resistance to inorganic acid corrosion, such as nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid, etc. It also has resistance to alkali and organic acid corrosion in oxidizing and reducing environments. Effective resistance to chloride ion reduction stress corrosion cracking. There is almost no corrosion in seawater and industrial gas environments, and it has high corrosion resistance to seawater and salt solutions, also at high temperatures. No sensitivity during welding. Resistant to carbonization and oxidation in static or cyclic environments, and resistant to corrosion by chlorine-containing gases.
3. Corrosion resistance of Incoloy 825 alloy
Incoloy 825 is a titanium stabilized fully austenitic nickel iron chromium alloy with added copper and molybdenum. Incoloy 825 is a general-purpose engineering alloy that resists acid and alkali metal corrosion in both oxidizing and reducing environments. The higher comprehensive performance of Incoloy 825 is demonstrated in nuclear combustion dissolvers with various corrosive media, such as sulfuric acid, nitric acid and sodium hydroxide, all processed in the same equipment.
4. Comparative differences between 625 and 825
Inconel625 alloy steel is a solid solution strengthened nickel-based deformed high-temperature alloy with molybdenum and niobium as the main strengthening elements. It has excellent corrosion resistance and oxidation resistance, and has good tensile properties and fatigue properties from low temperature to 980°C. Resistant to stress corrosion in salt spray atmosphere.
Inconel825 alloy steel is a titanium-stabilized fully austenitic nickel-iron-chromium alloy with added copper and molybdenum. It is a general engineering alloy that is resistant to acid and alkali metal corrosion in both oxidizing and reducing environments.
