FeCoNiCrMn-pulver

Overview of FeCoNiCrMn Powder

FeCoNiCrMn tillhör en klass av legeringar med flera huvudelement som kallas högentropilegeringar. Den nära ekviatomiska sammansättningen ger hög konfigurationsentropi, vilket leder till utmärkt hållfasthet, seghet och stabilitet vid höga temperaturer.

Key properties of FeCoNiCrMn powder include:

• Exceptionell hållfasthet vid höga temperaturer och krypmotstånd
• Utmärkt utmattningshållfasthet och brottseghet
• Enastående oxidations- och korrosionsbeständighet
• High microstructural stability at elevated temperatures
• Available in range of particle size distributions and morphologies

FeCoNiCrMn powder is suitable for high temperature structural parts, protective coatings, thermal spray, welding, additive manufacturing, and other demanding applications at elevated temperatures.

Composition of FeCoNiCrMn Powder

FeCoNiCrMn powder has the nominal composition:

The high entropy composition results in superior thermal stability and mechanical properties compared to conventional alloys. Impurities are minimized.

Properties of FeCoNiCrMn Powder

FeCoNiCrMn powder possesses the following properties:

The properties like strength, ductility, fatigue strength, and hardness are maintained up to temperatures exceeding 1000°C.

Production Method for FeCoNiCrMn Powder

Typical production methods for FeCoNiCrMn powder include:

• Atomisering av gas – High pressure inert gas used to atomize molten alloy to produce fine spherical powder with good flow and packing density.
• Atomisering av vatten – High velocity water jet breaks up molten metal stream into fine irregular powder particles. Lower cost but higher oxygen pickup.
• Mekanisk legering - Kulfräsning av blandade elementpulver följt av sintring och sekundär atomisering.

Gas atomization provides the best control over powder characteristics like particle size distribution, morphology, purity and microstructure.

Applications of FeCoNiCrMn Powder

FeCoNiCrMn powder is used in high temperature applications including:

• Additiv tillverkning – Selective laser melting to produce complex parts needing exceptional high temperature strength for aerospace, automotive, etc.
• Beläggningar för termisk sprutning – Wire arc spraying to deposit thick protective coatings providing wear/corrosion resistance at elevated temperatures exceeding 750°C.
• Fyllmedel för lödning – For joining high temperature alloys and ceramics due to its oxidation resistance.
• Förbrukningsmaterial för svetsning – Provides excellent weld strength and durability in high temperature or corrosive service conditions.
• Heat Treatment Fixtures – Powder metallurgy trays, baskets, fixtures used in heat treatment furnaces.

Specifications of FeCoNiCrMn Powder

FeCoNiCrMn powder is available under various size ranges, shapes, grades and purity levels:

• Partikelstorlek: Från 10-45 μm för AM-metoder, upp till 150 μm för termiska sprutprocesser.
• Morfologi: Spherical, irregular and blended shapes. Spherical powder provides optimal flow and packing density.
• Renhet: From commercial purity to ultra-high purity grades based on stringent chemical analysis and application requirements.
• Ytarea: Låg ytarea föredras för att minimera oxidation under hantering och lagring.
• Betyg: Customized composition and powder characteristics tailored for intended application and processing method.

Global Suppliers of FeCoNiCrMn Powder

Some of the major global suppliers of FeCoNiCrMn powder include:

• Sandvik Osprey (Storbritannien)
• Erasteel (Frankrike)
• Tekna (Kanada)
• Edgetech Industries (USA)
• CNPC Pulver (Kina)
• Hoganas (Sverige)
• AMETEK (USA)

These companies produce various grades of FeCoNiCrMn powder using gas atomization, water atomization and mechanical alloying processes tailored for demanding applications.

Pricing of FeCoNiCrMn Powder

FeCoNiCrMn powder prices depend on factors like:

• Sammansättning, renhetsgrad
• Particle size distribution and shape
• Produktionsmetod
• Orderkvantitet
• Tillverkare och geografiskt läge

Gas atomized, controlled particle size, high purity powders command much higher pricing compared to commercial grades.

Storage and Handling of FeCoNiCrMn Powder

FeCoNiCrMn powder requires careful storage and handling:

• Bör förvaras i slutna behållare under inert gas för att förhindra oxidation
• Need to control dust explosion hazards from fine powder accumulation
• Use proper PPE, ventilation, safety practices during powder handling
• Förhindra kontakt mellan pulver och oförenliga material
• Följ tillämpliga säkerhetsriktlinjer från leverantörens säkerhetsdatablad

Korrekta skyddsåtgärder är nödvändiga vid hantering av detta reaktiva legeringspulver.

Inspection and Testing of FeCoNiCrMn Powder

Key quality control tests performed on FeCoNiCrMn powder:

• Kemisk analys med hjälp av OES eller XRF för att säkerställa att sammansättningen ligger inom angivna gränser
• Partikelstorleksfördelning med hjälp av laserdiffraktion enligt ASTM B822-standarden
• Morfologisk analys genom SEM-bildtagning
• Mätning av pulverflödeshastighet enligt ASTM B213-standarden
• Densitetsbestämning med heliumpyknometri
• Testning av orenheter med ICP-MS
• Microstructural characterization by XRD phase analysis

Grundliga tester verifierar pulverkvalitet och konsistens för den avsedda högtemperaturapplikationen.

Comparison Between FeCoNiCrMn and Inconel 718 Powders

FeCoNiCrMn and Inconel 718 powders compared:

FeCoNiCrMn offers superior high temperature strength, whereas Inconel 718 has better workability and availability.

FeCoNiCrMn Powder FAQs

Q: How is FeCoNiCrMn powder produced?

A: FeCoNiCrMn powder is commercially produced using gas atomization, water atomization and mechanical alloying followed by sintering. Gas atomization offers the best powder characteristics.

Q: What are the main applications for FeCoNiCrMn powder?

A: Main applications include additive manufacturing, thermal spray coatings, brazing filler material, high temperature welding, powder metallurgy hot work tooling where exceptional high temperature strength is needed.

F: Vilken är den rekommenderade partikelstorleken för termisk sprutning?

A: For most thermal spray processes, a particle size range of 45-150 microns is preferred for FeCoNiCrMn powder to maximize deposition efficiency and coating properties.

Q: Does FeCoNiCrMn powder require special handling precautions?

S: Ja, lämpliga skyddsåtgärder är nödvändiga vid hantering av detta reaktiva fina legeringspulver, inklusive inert atmosfär, jordning, ventilation, PPE.

Q: Where can I buy FeCoNiCrMn powder suitable for additive manufacturing?

A: For AM applications requiring high temperature strength, fine FeCoNiCrMn powder can be purchased from leading manufacturers including Sandvik, Erasteel, Tekna, and Edgetech Industries.