Discontinued (Discontinued) AL6619 Aluminum Magnesium Scandium Alloy Powder (AlMgSc)

Aluminium-Magnesium-Scandium Alloy Powder (AlMgSc) Description

Aluminium-Magnesium-Scandium Alloy Powder (AlMgSc) is a high-performance material characterised by an aluminium matrix strengthened with magnesium and scandium. The addition of magnesium enhances the strength-to-weight ratio and corrosion resistance, while scandium, a rare earth element, refines the grain structure, significantly improving mechanical properties and thermal stability. The spherical morphology of the powder ensures excellent flowability and uniform packing density, which are critical for precision manufacturing processes.

This alloy exhibits an exceptional tensile strength (303 MPa) and ductility (22.5% elongation), attributed to its homogeneous microstructure and reduced porosity due to optimised processing parameters. The presence of scandium stabilises the subgrain structure of the alloy, suppresses recrystallisation, and increases fatigue strength. Its low weight (low density) is complemented by high stiffness and resistance to environmental damage, including oxidation and stress corrosion cracking.

Thermally, AlMgSc demonstrates improved stability at elevated temperatures, as scandium can form fine, thermally stable precipitates. The low thermal expansion coefficient and high thermal conductivity of the alloy further contribute to dimensional stability during temperature fluctuations. Chemically inert intermetallic phases within the matrix enhance wear resistance, while the absence of brittle secondary phases ensures consistent fracture toughness. These properties render AlMgSc a structurally sound and durable material suitable for high technical demands.

Aluminium-Magnesium-Scandium Alloy Powder (AlMgSc) Specification

Properties

Chemical Composition. %

*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us.

Aluminium-Magnesium-Scandium Alloy Powder (AlMgSc) Applications

• Aerospace: Manufacturing of aircraft components (e.g. fuselage frames, hatches), engine parts, and UAV systems, where lightweight construction reduces fuel consumption while ensuring reliability under extreme conditions.
• Additive Manufacturing (3D Printing): Ideal for Ultra-High-Speed Laser Melting (UHS-LMD) for producing complex geometries (e.g. topology-optimised heat sinks, custom tools), utilising low porosity and high density for precision engineering.
• High-Speed Rail Transport: Application in train car bodies and bogies to improve operational efficiency through weight reduction, while corrosion resistance extends service life in harsh environments.
• Defence and High-End Equipment: Use in lightweight armours, rocket casings, and ship components that demand high specific strength and impact toughness for mobility and durability.
• Automotive and Sports Equipment: Utilisation in racing car chassis, high-performance bicycle frames, and battery holders for electric vehicles to optimise the strength-to-weight ratio.

Aluminium-Magnesium-Scandium Alloy Powder (AlMgSc) Packaging

Our products are packaged in custom cartons of varying sizes based on material dimensions. Smaller items are securely packaged in PP cartons, while larger items are placed in custom wooden crates. We ensure strict adherence to packaging customisation and use appropriate cushioning materials to provide optimal protection during transport.

Packaging: Carton, Wooden crate, or custom.

Manufacturing Process

1. Testing Procedure

Analysis of chemical composition - Verified using techniques such as GDMS or XRF to ensure compliance with purity requirements.

Frequently Asked Questions about Aluminium-Magnesium-Scandium Alloy Powder (AlMgSc)

Q1: How does it perform in high-temperature environments?

A1: Scandium forms thermally stable nanoparticles that retain their strength at 200-250 °C (e.g. for engine components in aerospace).

Q2: What are the storage recommendations?

A2: Store in sealed, dry conditions (humidity <10%) under inert gas (e.g. Argon) to prevent oxidation.

F3: What is the form and size of the particles?

A3: Spherical powder with a typical size range of 0-150 µm (customisable). Exhibiting excellent flowability (angle of repose ≤38°), ideal for high-precision 3D printing.

Performance Comparison Table with Competing Products

Related Information

1. Raw Material - Aluminium (Al)

Aluminium, with atomic number 13 and symbol Al, is a lightweight, silvery-white metal known for its low density (2.70 g/cm³) and excellent corrosion resistance. It has a melting point of 660.3 °C and exhibits high ductility, making it easy to shape into sheets, wires, or powders. Aluminium possesses exceptional thermal and electrical conductivity, surpassed only by Copper among common metals. As the most abundant metal in the Earth's crust, it is widely used in the aerospace sector, construction, packaging, and electronics. Its recyclability (only 5% of the energy required for primary production is needed) further contributes to sustainability. In alloys like AlMgSc, aluminium serves as the base matrix, ensuring structural integrity while retaining lightweight characteristics.

Raw Materials - Magnesium (Mg)

Magnesium, with atomic number 12 (symbol Mg), is the lightest structural metal with a density of 1.74 g/cm³ and a melting point of 650 °C. It is highly reactive, especially in powdered form, where it can easily ignite in air. Nevertheless, magnesium offers an excellent strength-to-weight ratio and is biocompatible, making it valuable for biomedical implants. It is extracted from seawater or minerals such as dolomite and is an important alloying element in aluminium-based materials. In AlMgSc alloys, magnesium increases strength and reduces overall weight, although its flammability necessitates careful handling during powder processing.

Raw Materials - Scandium (Sc)

Scandium (atomic number 21, symbol Sc) is a rare earth metal with a density of 2.99 g/cm³ and a high melting point of 1,541°C. It is extremely rare and is primarily obtained as a by-product of uranium or thorium refining. Scandium plays a crucial role in strengthening alloys: even small additions (0.1-0.5%) refine grain structures, suppress recrystallisation, and enhance thermal stability. Consequently, aluminium alloys can maintain their strength at elevated temperatures (up to 250 °C) while improving weldability and fatigue resistance. Its high cost limits widespread use, but in high-quality applications such as aerospace or high-performance sporting equipment, the effects of scandium on material performance justify its inclusion.