Pulver av nickel- och aluminiumlegering

Översikt

Nickel aluminium alloy powder is a material composed of nickel, aluminium, and other alloying elements processed into a fine powder form. It offers properties like high strength, corrosion resistance, and thermal stability making it suitable for applications such as additive manufacturing, surface coating, welding, and more.

Some key details about nickel aluminium alloy powder:

• Composition – Primarily nickel and aluminium along with elements like titanium, iron, chromium etc.
• Production Process – Gas or water atomization of melted alloy
• Particle Shape – Spherical or irregular morphology
• Size Range – From 10 microns to 150 microns
• Common Trade Names – NiAl, Nichrome, Inconel, Hastelloy

Sammansättning av Pulver av nickel- och aluminiumlegering

The nickel content provides corrosion resistance and thermal/structural stability at high temperatures. The aluminium improves strength and weldability. Other elements enhance specific characteristics like hardness, tensile strength etc.

Properties of Nickel Aluminium Alloy Powder

The key properties making nickel aluminium alloys useful include high strength at elevated temperatures, good corrosion and oxidation resistance, excellent thermal conductivity and low expansion, and non-magnetic behavior.

Characteristics of Nickel Aluminium Alloy Powder

Partikelmorfologi

• Spherical, irregular and dendritic particles
• Satellite particles may be present
• Porous surface structure

Fördelning av partikelstorlek

• Available from 10 microns to 150 microns
• Common size grades -15-45 μm, 45-106 μm etc.
• Smal distribution säkerställer enhetliga egenskaper

Flow Properties

• Generally free flowing powders
• Some variations between spherical and irregular particles
• Carr’s index between 15-25%

Förpackning

• Containers – plastic jars/bottles, foil pouches
• Packed under argon or nitrogen atmosphere
• Moisture content <0.5%

Controlling particle shape, size distribution, flow properties and minimizing porosity/satellites allows reliable processing and performance. Proper packaging maintains powder quality during handling and storage.

Tillämpningar av Pulver av nickel- och aluminiumlegering

The excellent temperature resistance and processability as powder makes nickel aluminium alloys suitable for producing strong and durable parts/coatings in extreme environments across industries.

Nickel Aluminium Alloy Powder Specifications

Nickel alloy powder can be customized in composition, particle characteristics, size distribution as per application requirements. Standard grades are readily available.

Leverantörer och prissättning

Pricing varies based on alloy grade, particle size distribution, order quantity and purity. Customization also impacts costs. Large multinational corporations and Chinese manufacturers offer standard & custom nickel alloy powders.

Pros and Cons of Nickel Aluminium Alloy Powder

Nickel aluminium powders enable lightweight and durable metallic parts but require expertise in specialized powder processing methods. Composition can be tailored for an application.

Comparison of Nickel Aluminium Powder with Alternatives

Nickel aluminium powders provide the best balance of temperature capability, corrosion resistance and cost for most applications. Stainless steel powders are cheaper but cannot operate at extreme temperatures. Titanium alloy powders are costlier but offer lower working temperatures.

VANLIGA FRÅGOR

Q: What is nickel aluminium alloy powder used for?

A: Nickel aluminium alloy powder has applications in additive manufacturing, thermal spraying, welding, surface coating, investment casting etc to produce components with excellent high temperature strength, hardness and corrosion resistance.

Q: Is nickel aluminium alloy powder magnetic?

A: No, nickel aluminium alloys have very low magnetic permeability and are considered non-magnetic, unlike ferritic alloys. This provides advantages for certain applications.

Q: What is the composition of nickel aluminium alloy powder?

A: These powders contain 30-80% nickel balanced with 10-50% aluminium and alloyed with elements like chromium, iron, titanium etc based on the required properties.

Q: What particle sizes are available for this powder?

A: Nickel aluminium alloy powders range from around 10 microns to 150 microns. Some common size cuts are -325 mesh (<45 microns), -100/+325 mesh (45-150 microns) etc.

Q: Is nickel aluminium alloy environmentally friendly?

A: While nickel itself is toxic if ingested, aluminium and its alloys are considered environment-friendly materials compared to alternatives, with no hazards in their solid form. Reuse and recycling can minimize environmental impact.

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