Aluminium-vanadium Master Alloy，Aluminium vanadium Alloy，AlV Alloy，E FORU

**Product Datasheet: Aluminium-Vanadium Master Alloy (Al-V Alloy)** **Version:** 1.0 | **Date:** 2025-04-02 --- ### **1. General Overview** Aluminium-Vanadium Master Alloy (Al-V Alloy) is a specialized master alloy that utilizes vanadium to enhance strength, thermal stability, and grain refinement in aluminium alloys. Vanadium forms stable intermetallic compounds and solid solutions with aluminium, providing improved high-temperature performance, corrosion resistance, and microstructural control. This master alloy is particularly valuable in aerospace, automotive, and high-performance engineering applications. --- ### **2. International Standards** Al-V master alloys are specified in several international standards: - **ASTM:** ASTM B179 (Standard Specification for Aluminum Alloys in Ingot and Molten Forms) - **ISO:** ISO 209-1 (Wrought aluminium and aluminium alloys) - **EN:** EN 1676 (Aluminium and aluminium alloys - Master alloys) - **AA:** Aluminum Association designations for specific vanadium-containing alloys - **GB/T:** GB/T 8734 (Aluminium alloy master alloys) - **Typical Master Alloy Grades:** Al-10%V, Al-15%V, Al-20%V, Al-25%V --- ### **3. Chemical Composition (Weight %)** Typical composition ranges for Al-V master alloy: | Element | Content (%) | Role & Remarks | |------------------------|-------------------|------------------------------------------| | Vanadium (V) | 5.0 – 25.0 | Primary alloying element | | Iron (Fe) | ≤ 0.20 | Impurity control | | Silicon (Si) | ≤ 0.15 | Impurity control | | Copper (Cu) | ≤ 0.05 | Impurity control | | Titanium (Ti) | 0 – 3.0 | Optional grain refining addition | | Zirconium (Zr) | 0 – 2.0 | Optional addition for enhanced stability | | Other Impurities | ≤ 0.10 total | — | | Aluminium (Al) | Balance | Base metal | --- ### **4. Physical Properties** | Property | Value / Range | |---------------------------|-----------------------------------| | Density | 3.0 – 3.8 g/cm³ | | Melting Range | 660 – 1910°C (V melts at 1910°C) | | Intermetallic Phases | Al₃V, Al₄₅V₇, Al₁₀V, AlV₃ | | Thermal Conductivity | 85 – 135 W/m·K | | Electrical Conductivity | 28 – 42 % IACS | | Vickers Hardness | 75 – 150 HV | | Coefficient of Thermal Expansion | 19–22 × 10⁻⁶/K | --- ### **5. Key Characteristics & Advantages** - **Grain Refinement:** Effective grain size control through Al₃V nucleation - **High-Temperature Strength:** Maintains mechanical properties up to 400°C - **Precipitation Hardening:** Forms fine precipitates that enhance strength - **Corrosion Resistance:** Improved resistance to various corrosive environments - **Recrystallization Inhibition:** Suppresses recrystallization in wrought alloys - **Weldability:** Good welding characteristics with proper procedures --- ### **6. Product Applications** - **Aerospace Components:** Structural members, engine parts, airframe components - **Automotive Applications:** Pistons, connecting rods, high-strength components - **Sporting Goods:** Bicycle frames, baseball bats, high-performance equipment - **Nuclear Industry:** Structural components requiring thermal stability - **Marine Applications:** Corrosion-resistant structural components - **Electrical Conductors:** High-strength transmission lines - **Additive Manufacturing:** Specialty powders for 3D printing applications --- ### **7. Available Forms** - **Master Alloy:** Ingots, notch bars, waffle plates - **Special Forms:** Powder for additive manufacturing, custom shapes - **Standard Sizes:** 5–15 kg ingots - **Wire Form:** For continuous feeding in casting operations --- ### **8. Technical Guidelines for Use** - **Addition Rate:** 0.1–1.0% V to the melt (typically 0.2–0.5% for optimal effects) - **Melt Temperature:** 780–880°C - **Holding Time:** 40–80 minutes for complete dissolution - **Stirring:** Vigorous mechanical stirring recommended - **Casting Temperature:** 720–780°C - **Heat Treatment:** Solution treatment at 520–580°C, aging at 350–450°C --- ### **9. Mechanical Properties Enhancement** | V Content (%) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | |---------------|---------------------|-----------------------|----------------| | **0.1–0.2** | 220–280 | 260–320 | 10–15 | | **0.2–0.4** | 250–310 | 290–350 | 8–12 | | **0.4–0.6** | 280–340 | 320–380 | 6–10 | | **0.6–1.0** | 300–370 | 350–410 | 4–8 | --- ### **10. High-Temperature Performance** | Temperature (°C) | Strength Retention (%) | Creep Resistance | Microstructural Stability | |------------------|-----------------------|------------------|---------------------------| | **200** | 85–90 | Very Good | Excellent | | **300** | 75–80 | Good | Very Good | | **400** | 65–70 | Fair | Good | | **500** | 50–55 | Poor | Fair | --- ### **11. Comparison with Other Transition Metals** | Element | Grain Refinement | High-Temp Strength | Cost | Applications | |---------|------------------|-------------------|------|--------------| | **Vanadium** | Very Good | Excellent | Medium | Aerospace, Automotive | | **Zirconium** | Excellent | Very Good | Medium | General high-temp | | **Titanium** | Excellent | Good | Low | General purpose | | **Molybdenum** | Good | Excellent | High | Premium applications | --- ### **12. Quality Control Parameters** - Vanadium content consistency (±0.15%) - Homogeneous distribution of Al₃V particles - Low gas content (hydrogen < 0.12 ml/100g) - Controlled intermetallic particle size (0.5–5.0 μm) - Chemical composition certification --- ### **13. Health, Safety & Handling** - **Moderate Toxicity:** Vanadium compounds require careful handling - **Dust Control:** Avoid inhalation of fine particles - use respiratory protection - **Personal Protection:** Standard foundry PPE with ventilation - **Ventilation:** Adequate fume extraction essential - **Storage:** Dry, controlled environment - **Disposal:** Follow hazardous metal disposal protocols --- ### **14. Economic & Supply Considerations** - **Cost Factors:** Moderate cost with stable supply chain - **Supply Security:** Good availability as byproduct of other metal production - **Processing Efficiency:** Good recovery rates in alloying process - **Recycling:** Compatible with aluminium recycling streams --- ### **15. Specialized Applications Detail** **Aerospace Structural Components:** - High strength-to-weight ratio - Good fatigue resistance - Excellent thermal stability **Automotive High-Performance Parts:** - Enhanced mechanical properties - Good wear resistance - Suitable for high-temperature service --- ### **16. Research & Development Trends** - **Nanoscale Precipitates:** Control of Al₃V precipitate distribution - **Multi-element Systems:** Al-V-Zr and Al-V-Sc complex alloys - **Additive Manufacturing:** Development of specialized powders for 3D printing - **Recycling Technologies:** Improved vanadium recovery from aluminium scrap - **Process Optimization:** Advanced thermal mechanical processing techniques --- ### **Disclaimer** This information is provided for technical reference only. Properties and performance may vary based on specific application conditions, processing parameters, and thermal mechanical history. Vanadium-containing alloys require careful process control to achieve optimal properties. Users are advised to conduct comprehensive testing to determine suitability for their specific applications. Always follow good manufacturing practices and safety guidelines, particularly regarding vanadium compound handling, and consult with materials engineering specialists for critical applications in aerospace and automotive sectors.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2323 gallon liquid totes Special package is available on request.