Technical Specifications of AZ31 Magnesium Alloy Powder
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Chemical Composition:
- Magnesium (Mg): Balance (~96-97%)
- Aluminum (Al): 2.5–3.5%
- Zinc (Zn): 0.6–1.4%
- Manganese (Mn): 0.2–1.0%
- Silicon (Si): ≤ 0.05%
- Iron (Fe): ≤ 0.005%
- Copper (Cu): ≤ 0.05%
- Nickel (Ni): ≤ 0.005%
- Other elements (each): ≤ 0.02%
- Total impurities: ≤ 1.0%
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Physical Properties:
- Purity: > 95%
- Particle Size: 15-53 μm (microns)
- Density: ~1.77 g/cm³
- Melting Point: ~620-650°C
- Morphology: Spherical (typically produced via gas atomization or PREP (Plasma Rotating Electrode Process))
- Color: Light gray metallic
- Thermal Conductivity: ~96 W/m·K
- Electrical Conductivity: ~38% IACS (compared to copper)
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Mechanical Properties (Bulk AZ31 Alloy):
- Tensile Strength: 220–280 MPa
- Yield Strength: 150–200 MPa
- Hardness: ~50-60 HV
- Elongation: ~10-15% (higher ductility than AZ91)
- Corrosion Resistance: Improved compared to pure Mg, but lower than AZ91 due to lower Al content
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Production Methods:
- Gas atomization
- Plasma Rotating Electrode Process (PREP)
- Mechanical milling
Applications of AZ31 Magnesium Alloy Powder
1. Additive Manufacturing (3D Printing)
- Compatible with Selective Laser Melting (SLM) and Electron Beam Melting (EBM)
- Produces lightweight, high-strength components for aerospace and medical industries
2. Powder Metallurgy (PM)
- Used in sintering, hot pressing, and cold pressing to create structural components with lightweight and high strength
3. Automotive & Aerospace Applications
- Ideal for lightweight vehicle and aircraft components to enhance fuel efficiency
- Applied in aerospace brackets, drones, UAV structures, and automotive panels
4. Biomedical & Biodegradable Implants
- Biocompatible and biodegradable, making it suitable for bone screws, fixation plates, and stents
- Lower aluminum content makes it safer for medical implants compared to AZ91
5. Coating and Surface Engineering
- Used in thermal spraying and cold spraying to create corrosion-resistant coatings for lightweight materials
6. Hydrogen Storage & Energy Applications
- Magnesium-based powders, including AZ31, are researched for hydrogen storage applications
- Used in magnesium-ion battery anodes due to its electrochemical properties
7. Defense & Electronics
- Lightweight casing for military equipment, electronic housings, and portable devices
- Magnesium alloys reduce electromagnetic interference (EMI) in electronics
8. Aerospace Flame-Resistant Applications
- AZ31 can be processed into flame-resistant alloys when combined with specific coatings
