3D printing Inconel alloy In625 powder manufacturing process

3D printing Inconel alloy In625 powder has the following properties

1. Excellent corrosion resistance to various corrosive media in oxidizing and reducing environments

2. Excellent resistance to pitting corrosion and crevice corrosion, and will not produce stress corrosion cracking caused by chlorides

3. Excellent corrosion resistance to inorganic acids, such as nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid and mixed acids of sulfuric acid and hydrochloric acid, etc.

4. Excellent resistance to corrosion of various inorganic acid mixed solutions

5. When the temperature reaches 40℃, it can show good corrosion resistance in various concentrations of hydrochloric acid solution

6. Good workability and weldability, no post-weld cracking sensitivity

7. Manufacture certification of pressure vessels with wall temperature of -196～450℃

8. Certified by the American Society of Corrosion Engineers NACE standard (MR-01-75) to meet the highest standard level VII for use in sour gas environments

Metallographic structure of Inconel 625

625 is a face-centered cubic lattice structure. When held at about 650°C for a sufficient time, carbon particles and an unstable quaternary phase will precipitate and transform into a stable Ni3(Nb,Ti) orthorhombic phase. The molybdenum and niobium components in the nickel-chromium matrix after solid solution strengthening will improve the mechanical properties of the material, but the plasticity will decrease.

Corrosion Resistance of Inconel 625

Alloy 625 exhibits excellent corrosion resistance in many media. Excellent resistance to pitting, crevice corrosion, intergranular corrosion and erosion in chloride media. It has good corrosion resistance to inorganic acids, such as nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid, etc., and also has alkali and organic acid corrosion resistance in oxidizing and reducing environments. Effective resistance to chloride ion reducing stress corrosion cracking. Almost no corrosion occurs in seawater and industrial gas environments, and it has high corrosion resistance to seawater and salt solutions, even at high temperatures. No sensitivity during welding. Resists carbonation and oxidation in static or cyclic environments, and is resistant to chlorine-containing gases.

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3D printing Inconel alloy In625 powder manufacturing process

Inconel625 containing no or less aluminum and titanium is generally smelted by electric arc furnace or non-vacuum induction furnace. If Inconel625 containing aluminum and high titanium is smelted in the atmosphere, the element burning loss is not easy to control, and the gas and inclusions enter more, so vacuum smelting should be used. In order to further reduce the content of inclusions and improve the distribution of inclusions and the crystalline structure of the ingot, a duplex process combining smelting and secondary remelting can be used. The main means of smelting are electric arc furnace, vacuum induction furnace and non-vacuum induction furnace; the main means of remelting are vacuum consumable furnace and electroslag furnace.

Solid solution strengthened alloys and alloy ingots with low aluminum and titanium content (the total amount of aluminum and titanium is less than 4.5%) can be billeted by forging; alloys with high aluminum and titanium content are generally billeted by extrusion or rolling. Then hot-rolled, some products need to be further cold-rolled or cold-drawn. Alloy ingots or cakes with larger diameters need to be forged with hydraulic presses or quick-forging hydraulic presses.

Alloys with a high degree of alloying that are not easily deformed are widely used in precision casting, such as casting turbine blades and guide vanes. In order to reduce or eliminate grain boundaries perpendicular to the stress axis in cast alloys and reduce or eliminate porosity, directional crystallization processes have been developed in recent years. This process is to grow the grains along one crystallographic direction during the solidification of the alloy to obtain parallel columnar grains without transverse grain boundaries. The primary process condition to achieve directional crystallization is to establish and maintain a sufficiently large axial temperature gradient and good axial heat dissipation conditions between the liquidus and the solidus. In addition, in order to eliminate all grain boundaries, the manufacturing process of single crystal blades needs to be studied.

Powder metallurgy process, mainly used to produce precipitation-strengthened and oxide dispersion-strengthened Inconel625. This process can make the generally indeformable cast Inconel625 obtain plasticity and even superplasticity.

The performance of comprehensively treated Inconel625 is closely related to the microstructure of the alloy, and the microstructure is controlled by the heat treatment of the metal. Inconel625 generally needs to be heat treated. Precipitation-strengthened alloys are usually solution treated and aged. Solution-strengthened alloys are only solution-treated. Some alloys also undergo one or two intermediate treatments before aging. The solution treatment is first to dissolve the second phase into the alloy matrix, so that the strengthening phases such as γ and carbide (cobalt-based alloy) can be uniformly precipitated during the aging treatment, and secondly to obtain a suitable grain size to ensure high temperature creep. and long-lasting performance.

The solution treatment temperature is generally 1040 to 1220°C. The widely used alloys are usually treated at 1050-1100℃ before aging treatment. The main function of the intermediate treatment is to precipitate carbides and γ films at the grain boundaries to improve the state of the grain boundaries. At the same time, some alloys also precipitate some larger γ phases and the fine γ phases precipitated during the aging treatment to form a reasonable match. The purpose of aging treatment is to uniformly precipitate γ phase or carbide (cobalt-based alloy) from supersaturated solid solution to improve high temperature strength. The aging treatment temperature is generally 700-1000 °C.

3D printing Inconel alloy In625 powder overview

Nconel625 is an alloy grade with a density of 8.4 g/cm3 and a melting point of 1290-1350°C. It has excellent corrosion resistance to inorganic acids and excellent corrosion resistance to various corrosive media in redox environments.

625 has a face-centered cubic lattice structure. When kept at around 650 °C for a long enough time, the carbon particles and unstable quaternary phase will precipitate and transform into stable Ni3(Nb,Ti) orthorhombic 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 decrease.

Application of 3D printing Inconel alloy In625 powder

The softened and annealed low carbon alloy 625 has been widely used in the chemical processing industry. Its good corrosion resistance and high strength allow it to be used in thinner structural parts. Alloy 625 can be used in contact with seawater. And can withstand high mechanical stress.

Typical application areas:

1. Components of organic chemical processes containing chlorides, especially when acid chloride catalysts are used

2. For the manufacture of digesters and bleaching tanks in the pulp and paper industry

3. Absorption tower, reheater, flue gas inlet baffle, fan (wet), agitator, baffle, flue in flue gas desulfurization system

4. For the manufacture of equipment and components used in sour gas environments

5. Acetic acid and acetic anhydride reaction generator

3D printing Inconel alloy In625 powder price

The price of 3D printing Inconel alloy In625 powder varies randomly with factors such as market production costs, transportation costs, international situations, exchange rates, and supply and demand. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for 3D printing Inconel alloy In625 powder products, please feel free to contact me for the latest price of 3D printing Inconel alloy In625 powder products.

3D printing Inconel alloy In625 powder suppliers

As a global 3D printing Inconel alloy In625 powder supplier, Tanki New Materials Co., Ltd. Extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxide materials, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.

Composition for nickel based alloy powder In625 (percentage by mass):