Bột kim loại titan

Mục lục

Bột kim loại titan metallurgy enables fabricating advanced lightweight structural parts combining high specific strength, corrosion resistance and biocompatibility. This guide covers titanium powder production methods, characteristics, alloying strategies, applications, specifications, pricing, and comparisons against alternative metals. It also includes research directions and expert recommendations on processing titanium powder for optimized properties.

Tổng quan

Key attributes make titanium metal powder useful across industries from aerospace to medical:

  • Highest strength-to-weight ratio of any metallic element
  • Fully biocompatible and non-toxic
  • Resists saltwater, aquatic and physiological corrosion
  • Thermally inert from cryogenic to 600°C temperatures
  • More ductile than competing high-strength alloys
  • Powder bed fusion 3D printing compatibility
  • Allows lightweight composites and reinforced structures

Continued titanium powder metallurgy developments now enable larger printed parts for orthopedic implants, aerospace components, automobile systems and many general engineering applications leveraging titanium’s intrinsic benefits.

Bột kim loại titan

Bột kim loại titan Thành phần

Commercially pure titanium comprises >99% titanium with low oxygen and iron impurities:

Yếu tốCân nặng %Vai trò
Titanium (TI)99.5%+Corrosion resistance, strength
Oxy (O)<0.20%Contaminant – reduces ductility
Sắt (Fe)<0.30%Contaminant – reduces corrosion resistance
Nitơ (N)<0.03%Contaminant – causes embrittlement
Carbon (c)<0.10%Contaminant – reduces bonding

The high reactivity of titanium means it is never found in pure form naturally. But once extracted and purified into powder, it demonstrates exceptional properties suitable for manufacturing high performance parts.

Characteristics and Properties

  • Cao tensile strength – 490 MPa
  • Density – 4.5 g/cm3
  • Độ nóng chảy – 1668°C
  • Thermal expansion – 8.6 μm/(m.K)
  • Điện trở suất – 420 nΩ.m
  • Dẫn nhiệt – 21.9 W/(m.K)
  • Paramagnetic with no biotoxicity
  • Khả năng tương thích sinh học tuyệt vời

These properties depend strongly on impurity controls during powder production stages as described next.

Titanium Powder Production Methods

Armstrong Process

  • Reducing titanium tetrachloride with sodium/magnesium under inert atmosphere
  • Facilitates low interstitial elemental powder suited for additive manufacturing

Hydride-Dehydride (HDH) Process

  • Most common method converting titanium sponge into spherical powder
  • Lower cost but higher oxygen pickup requiring optimization
FeedstockTitanium ingot or sponge
HydridingProcess reacting Ti with hydrogen to make brittle TiH2
MillingCrushing hydride into fine powder particles
De-hydridingCarefully removing hydrogen from TiH2
ConditioningDesiccation, blending, particle size distribution adjustment
Final TestingChemical assays, particle size distribution, morphology checks

Key characteristics:

  • Particle sizes tuned between 15 microns to 150 microns
  • Near spherical morphologies with some satellites
  • Controlled low oxygen and nitrogen impurity levels
  • Minimized surface oxidation using stabilization heat treatments
  • Custom chemistry blending possible by mixing hydride powders

The next section highlights some approaches to consolidate titanium powder into end use parts and components.

Applications Using Bột kim loại titan

sản xuất phụ gia

  • 3D printing complex geometries using laser powder bed fusion
  • Aerospace and medical implants like orthopedic knee/hip joints
  • Light weighting otherwise machined components

Powder Injection Molding

  • High volume net shape small components like fasteners
  • Cost effective consolidation into titanium hardware

Đúc kim loại

  • Small intricate titanium parts with thin walls
  • Corrosion resistant valves and fittings

Powder Metallurgy Press and Sinter

  • Hot Isostatic Pressing of encapsulated titanium
  • Porous structures like bone in-growth surfaces

Thuốc phun nhiệt

  • Wear and corrosion resistant titanium coatings
  • Salvaging worn components via metallic coatings

Emerging: Binder jet 3D printing using polymer adhesives alongside ultrasonic consolidation and cold spray additive techniques now under development.

Next we outline general specification details used to order custom titanium powder.

Titanium Powder Specifications

Commercially available titanium powder for industrial uses conforms to established quality metrics:

Tham sốGiá trị điển hình
Phân phối kích thước hạt10 μm to 150 μm
Hình dạng hạtChủ yếu là hình cầu
tap density2.2 g/cc to 3.0 g/cc
Mật độ rõ ràng1.5 g/cc to 2.0 g/cc
Sự thuần khiết99.7% titanium content
Oxygen Impurity& LT; 2000 ppm
Nitrogen Impurity<150 ppm
Hydrogen Impurity& lt; 100 ppm
Khả năng chảyImproved via dry coatings

Particle engineering – Smaller is difficult but better. Larger than 100 microns risks imperfections.

Sự thuần khiết – Vital to properties and depends on production route.

Đặc điểm bột – Matched to consolidation technique and desired material performance.

Significant customization possible but requires MOQ batch commitments. Supply partnerships facilitate application development.

Titanium Powder Processing Insights

Handling fine titanium powder poses combustion risks needing safety controls:

  • Use inert gas glove boxes for storage and handling
  • Avoid storing bulk quantities near ignition sources
  • Electrically ground equipment to dissipate static buildup
  • Employ dedicated vacuum and ventilation systems
  • Thermally protect reactive intermediates like hydride
  • Follow strict safety protocols given material reactivity

The next section examines the economics around titanium powder which remains costlier than traditional wrought metal forms.

Titanium Powder Price Analysis

SẢN PHẨMPhạm vi giá
R&D grade Ti powder$800+ per kg
Industrial grade$100+ per kg
Aerospace grade$200+ per kg
Medical grade$500+ per kg

Powder production economics dominate finished part costs relative to added material value. But lightweight potential justifies adoption for aviation, space and racing mobility applications.

Tight chemistry requirements for biocompatibility certification uplift medical pricing tiers. High nitrogen makes powder unsuitable for bone contact implant devices.

Supply partnerships and qualified LTA arrangements help secure best pricing stabilizing variable raw material volatility in export-controlled titanium sponge costs.

Comparison Against Alternatives

Titanium competes against steels, aluminum alloys, magnesum and advanced composites:

Vật liệuSức căngTỉ trọngChống ăn mònBio-compatibilityTrị giá
Titanium Ti64CaoLightXuất sắcXuất sắc$$$
Stainless Steel 316LTrung bìnhHeavyTốtHội chợ$
Al 6061Trung bìnhLightNghèoTốt$
CoCr AlloysCaoHeavyXuất sắcToxicity risks$$
Mg AZ91ThấpLightestHội chợTốt$
Peek PolymerTrung bìnhThấpXuất sắcBio-inert$$$

Titanium Benefits

  • Highest strength to weight ratio
  • Full corrosion resistance
  • Proven biocompatibility
  • Available supply infrastructure

Titanium Limitations

  • High sensitivity to design geometries
  • Tricky burn-out and debinding
  • Reactive powder handling needs controls
  • Relatively expensive feedstock pricing

Understanding these technical and commercial trade-offs helps identify ideal applications benefitting most from titanium powder metallurgy.

Research and Development Outlook

Emerging efforts to improve titanium powder include:

Alloy Design

  • Customized compositions for dermatological implants
  • High entropy alloys with exotic elemental blends


  • Predicting microstructural evolution during heat treatments
  • Characterizing powder reuse limits

AM Process

  • Binder jet printing followed by microwave sintering
  • Hybrid manufacturing combining cold spray densification

Powder Production

  • Electrostatic spheroidization without hydriding
  • Low cost titanium powder blends through reuse

Các ứng dụng

  • Qualifying aerospace turbine prototypes
  • Electronics thermal management devices
  • Continuously variable transmission gearbox
Bột kim loại titan


Titanium is the highest strength-to-weight ratio metallic element but has always been notoriously difficult to extract and fabricate using traditional casting and machining techniques. Recent powder metallurgy advances transform titanium’s potential to deliver lightweight, high strength printed parts combining corrosion resistance and biocompatibility. Tailoring chemistry compliance across medical, aerospace and automotive applications now unlocks innovative geometries previously impossible, technically or economically. However handling the pyrophoric reactivity risks of fine titanium powder remains an expertise barrier needing extreme vigilance when exploring adoption. Working closely with specialist materials partners allows harnessing titanium’s full potential while mitigating operational risks.

biết thêm quy trình in 3D

Chia sẻ

logo 3dp kim loại nhỏ

Metal3DP Technology Co., Ltd là nhà cung cấp hàng đầu các giải pháp sản xuất phụ gia có trụ sở tại Qingdao, Trung Quốc. Công ty chúng tôi chuyên về thiết bị in 3D và bột kim loại hiệu suất cao cho các ứng dụng công nghiệp.

Yêu cầu để có được giá tốt nhất và giải pháp tùy chỉnh cho doanh nghiệp của bạn!

Những bài viết liên quan

Về met3dp

Chơi Video

Cập nhật gần đây

Sản phẩm của chúng tôi


Bất kỳ câu hỏi? Gửi tin nhắn cho chúng tôi ngay! Chúng tôi sẽ phục vụ yêu cầu của bạn với cả một nhóm sau khi nhận được tin nhắn của bạn. 

Nhận Metal3DP's
Tài liệu sản phẩm

Nhận các tin tức mới nhất, đổi mới và tin tức của công ty.