Pulver av titanlegering

Allt du behöver veta om leverantörer av metallpulver för 3D-utskrift

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Pulver av titanlegering is composed of titanium mixed with other metallic elements like aluminum, vanadium, iron, and molybdenum. The powders are made by gas atomization, a process that uses high-pressure gas to turn molten alloy into fine spherical particles ideal for additive manufacturing.

Titanium alloys offer the best strength-to-weight ratio of any metallic material. They are as strong as steel but 45% lighter. When produced as fine powders, titanium alloys become suitable feedstock for advanced manufacturing techniques like selective laser sintering (SLS), electron beam melting (EBM), and binder jetting. These methods allow intricate shapes and custom designs not possible with traditional fabrication.

Titanium and its alloys stand out for their corrosion resistance in harsh environments. They withstand saltwater, acids, and chlorine much better than aluminum, magnesium, or steel alloys. Titanium is also inert and non-toxic when implanted in the human body. This biocompatibility makes it invaluable for medical devices and implants.

With advanced properties like high strength, low density, corrosion resistance, and biocompatibility, titanium alloy powders enable lighter, stronger, longer-lasting parts across aerospace, automotive, medical, chemical, marine, and consumer industries.

Titanium Alloy Powder Composition

Titanium alloy powders contain primarily titanium along with alloying elements to improve strength, hardness, and high-temperature performance. The most common titanium alloys are Ti-6Al-4V, Ti-6Al-4V ELI, and Ti-3Al-2.5V.

Legering	Sammansättning
Ti-6Al-4V	90% titan, 6% aluminium, 4% vanadin
Ti-6Al-4V ELI	90% titanium, 6% aluminum, 4% vanadium, low interstitial impurities
Ti-3Al-2,5V	95% titanium, 3% aluminum, 2.5% vanadium

Other alloying elements like iron, molybdenum, zirconium, tin, tantalum, or niobium may be present in small quantities. The composition is carefully controlled to achieve target properties after additive manufacturing.

Properties of Titanium Alloy Powder

The unique properties of titanium alloys in powder form enable advanced manufacturing, aerospace, medical, and other leading-edge applications.

Fastighet	Ti-6Al-4V	Ti-6Al-4V ELI	Ti-3Al-2,5V
Täthet	4,43 g/cm3	4,43 g/cm3	4.48 g/cm3
Smältpunkt	1604°C	1604°C	1615°C
Draghållfasthet	Min 1170 MPa	Min 1100 MPa	Min 1095 MPa
Utbyteshållfasthet	Min 1035 MPa	Min 1035 MPa	Min 1000 MPa
Töjning	10-15%	8-15%	8-10%
Elastisk modul	114 GPa	114 GPa	115 GPa
Utmattningshållfasthet	485 MPa	485 MPa	450 MPa
Brottseghet	75 MPa-m^1/2	60 MPa-m^1/2	65 MPa-m^1/2
Termisk konduktivitet	7 W/m-K	7 W/m-K	6,7 W/m-K
Elektrisk resistivitet	170-190 μΩ-cm	170-190 μΩ-cm	172 μΩ-cm
Koefficient för termisk expansion	8.6 μm/m-°C	8.6 μm/m-°C	8.8 μm/m-°C

The properties of printed parts depend on the additive manufacturing process as well as heat treatment after printing. For example, electron beam melting (EBM) generates finer microstructures and better mechanical properties compared to selective laser melting (SLM). Post-processing like hot isostatic pressing (HIP) can further enhance density, surface finish, dimensional accuracy, and material performance.

Applications of Titanium Alloy Powder

Some of the major application areas for titanium alloy powder include:

Industri	Tillämpningar
Flyg- och rymdindustrin	Engine components, airframe parts, fasteners, hydraulic systems
Medicinsk	Implants, surgical instruments, dental roots, braces
Fordon	Connecting rods, valves, springs, fasteners, gears
Kemisk	Pumps, valves, pipes, heat exchangers, reaction vessels
Olja och gas	Drill bits, completion tools, subsea components
Kraftproduktion	Turbine blades, heat exchangers, steam and gas piping
Sporting goods	Golf clubs, bicycle frames, hockey sticks, lacrosse sticks
Konsumentvaror	Watches, glasses, jewelry, smartphones, cameras

Titanium alloys enable lightweight, high-performance designs across industries where strength, corrosion resistance, and biocompatibility are critical. The flexibility of powder metallurgy allows production of complex, net-shape parts not possible with conventional titanium mill products.

Titanium Alloy Powder Specifications

Titanium alloy powders are available in different size ranges, compositions, production methods, and purity levels. Here are some of the key specification parameters:

Parameter	Typiska värden
Partikelstorlek	10-45 μm, 15-53 μm, 45-150 μm
Partikelns form	Sfärisk, oregelbunden
Produktionsmetod	Gas atomization, plasma rotating electrode process, hydride-dehydride
Renhet	Grade 1, 2, 3, 4, 5
Legeringsklass	Ti-6Al-4V, Ti-6Al-7Nb, Ti-555, Ti-1023, etc.
Skenbar densitet	2,5-4,5 g/cm3
Tappdensitet	Up to 80% of material density
Syrehalt	3000-5000 ppm
Kväveinnehåll	150-500 ppm
Innehåll av väte	100-200 ppm
Flödeshastighet	Upp till 25 s/50 g
Specifik ytarea	0.1-1.0 m2/g

Specifications are based on ASTM B988 for gas atomized spherical titanium alloy powder and other international standards. Custom compositions and particle characteristics are also available for specialized applications.

Prissättning av titanlegeringspulver

Pricing for titanium alloy powder depends on many factors:

Faktor	Påverkan på priset
Legeringens sammansättning	Higher alloying content increases cost
Renhetsgrad	Higher purity grades are more expensive
Fördelning av partikelstorlek	Smaller sizes are priced higher
Produktionsmetod	Plasma and HDH powders cost more than gas atomized
Orderkvantitet	Prices decrease with larger order quantities
Förpackning	Argon purged sealed cans add cost

Några vägledande prisintervaller:

Ti-6Al-4V powder 15-45 μm: $50-80/lb
Ti-6Al-4V powder 45-150 μm: $30-50/lb
Small lots in sealed cans are ~30% higher
Plasma Ti-6Al-4V powder: $120-150/lb
Purity grade 1 powder: $200-300/lb

Contact reputable suppliers like AP&C, Tekna, and Advanced Powders for quoted pricing based on your specific requirements. Be wary of low-cost powders from unknown sources with questionable quality.

Comparison of Titanium Powder Production Methods

Comparison of Titanium Powder Production Methods

Metod	Atomisering av gas	Plasmaatomisering
Beskrivning	Alloy melted in vacuum chamber, impinged by high-velocity inert gas jets to make powder	Alloy melted using plasma arc torch, steam of ultrafine droplets rapidly solidified into powder
Partikelstorlek	15-150 mikrometer	5-45 mikrometer
Partikelform	Irregular spheroids	Very spherical
Syrepickup	Måttlig	Låg
Kostnad	Lägre	Högre
Skalbarhet	Higher capacity	Small batches
Typiska tillämpningar	Most additive manufacturing	Flyg- och rymdindustrin, medicinteknik

Gas atomization is the standard production method used by major titanium powder suppliers. Plasma atomization creates finer, more spherical powders but has higher cost and lower output.

Vanliga frågor och svar

Q: What are the main advantages of using titanium alloy powder?

A: The main advantages are excellent strength-to-weight ratio, corrosion resistance, bio-compatibility, design flexibility, ability to produce complex net shape parts, and performance at high temperatures.

Q: What industries use titanium alloy powder the most?

A: Aerospace, medical, automotive, chemical processing, oil and gas, sporting goods, and power generation are leading users of titanium powder for advanced components.

Q: What are some examples of titanium alloy powder applications?

A: Specific applications include aircraft engine and airframe parts, biomedical implants and instruments, automotive valves and connecting rods, chemical processing equipment, golf clubs, watches, and bicycles.

Q: What alloy compositions are commonly used with titanium powder?

A: Popular alloys include Ti-6Al-4V, Ti-6Al-7Nb, Ti-555, Ti-1023, and commercially pure titanium grades 1 through 4. Exact composition is tailored to meet property and processing requirements.

Q: What manufacturing processes use titanium alloy powder as feedstock?

A: The main processes are metal injection molding (MIM), laser powder bed fusion (L-PBF), electron beam powder bed fusion (EB-PBF), and directed energy deposition (DED).

Q: How are the properties of powder metallurgy titanium alloys compared to wrought and cast titanium?

A: With optimal processing, powder metallurgy titanium parts can achieve mechanical properties on par and sometimes superior to cast or wrought products. However, property anisotropy and defects require close control and qualification.

Q: What are some of the key specifications for titanium alloy powder?

A: Important characteristics include particle size distribution, particle shape, apparent density, tap density, flow rate, alloy composition, oxygen/nitrogen/hydrogen content, specific surface area, and powder production method.

Q: What precautions are required when handling titanium alloy powder?

A: An inert atmosphere, avoiding ignition sources, grounding equipment, minimizing dust generation, and wearing PPE are essential to handle reactive titanium powder safely. Strict procedures are needed to prevent contamination or changes to powder characteristics.

Wholesale Price: $20/Kg-$300/Kg

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