Magnesium Yttrium Gadolinium (Mg-Y-Gd) Master Alloy,Mg-Y-Gd Alloy,E FOUR

### **Product Introduction: Magnesium Yttrium Gadolinium Master Alloy (Mg-Y-Gd Alloy)** **Product Names:** * Magnesium Yttrium Gadolinium Master Alloy * Mg-Y-Gd Master Alloy * Mg-Y-Gd Alloy #### **Overview** Magnesium Yttrium Gadolinium Master Alloy is a premium, high-performance alloying agent designed for the introduction of both Yttrium (Y) and Gadolinium (Gd) into magnesium (Mg) melts. This ternary master alloy leverages the synergistic strengthening effects of these two powerful rare-earth elements. Yttrium provides excellent high-temperature strength and corrosion resistance, while Gadolinium offers outstanding solid solution and precipitation strengthening. The combination results in magnesium alloys with unparalleled mechanical properties, creep resistance, and thermal stability, making it the material of choice for the most demanding aerospace and defense applications. #### **Key Features & Advantages** * **Synergistic Strengthening:** The combination of Y and Gd creates a powerful synergistic effect, leading to superior strength compared to alloys containing only one of these elements. This is achieved through the formation of complex and thermally stable precipitates. * **Exceptional High-Temperature Performance:** Designed for service temperatures up to 300°C and beyond. It significantly improves creep resistance and retains tensile and yield strength at elevated temperatures. * **Superior Specific Strength:** Offers an exceptional strength-to-weight ratio, making it ideal for weight-critical applications. * **Enhanced Creep Resistance:** The microstructural stability provided by the Y and Gd combination effectively inhibits grain boundary sliding and dislocation creep under high stress and temperature. * **Excellent Castability & Processability:** Facilitates the production of high-integrity castings and can be used to manufacture wrought products (extrusions, forgings) with precise compositional control. --- ### **Chemical Composition** Our Mg-Y-Gd Master Alloy is available in various grades to target specific final alloy compositions. Common grades are tailored for alloys like WE54 (Mg-5Y-4RE) and advanced Mg-Gd-Y-Zr systems. | Element | MGYGD54 (Example: for WE54) | MGYGD104 (Example: for High-Strength Alloys) | Impurities (Max.) | | :--- | :--- | :--- | :--- | | **Y (Yttrium)** | 4.0 - 6.0% | 9.0 - 11.0% | - | | **Gd (Gadolinium)** | 3.0 - 5.0% | 3.0 - 5.0% | - | | **Mg (Magnesium)** | Balance | Balance | - | | **Y+Gd Total** | 7.0 - 11.0% | 12.0 - 16.0% | - | | **Fe (Iron)** | ≤ 0.01% | ≤ 0.01% | 0.02% | | **Si (Silicon)** | ≤ 0.01% | ≤ 0.01% | 0.02% | | **Cu (Copper)** | ≤ 0.005% | ≤ 0.005% | 0.01% | | **Ni (Nickel)** | ≤ 0.002% | ≤ 0.002% | 0.005% | | **Other Single RE** | ≤ 0.05% | ≤ 0.05% | 0.10% | *Note: The ratio of Yttrium to Gadolinium and the total RE content can be customized to meet specific R&D or production needs. Please contact us for custom formulations.* --- ### **Physical Properties** | Property | Typical Value / Description | | :--- | :--- | | **Form** | Ingot, Notched Ingot, Lump | | **Ingot Size** | Customizable (e.g., 5-15 kg per ingot) | | **Color** | Metallic Gray | | **Melting Point** | Varies with composition; approximately **~620°C - 660°C** | | **Density** | Varies with composition; approximately **~1.9 - 2.1 g/cm³** | --- ### **Applications** The Mg-Y-Gd Master Alloy is exclusively used for manufacturing the highest grade of magnesium alloys for extreme environments. Its primary applications are in the aerospace and defense industries. * **Aerospace & Aviation:** * **Engine Components:** Gearboxes, compressor casings, intermediate casings, and engine mounts in jet engines and gas turbines. * **Transmission Systems:** Housings and components in helicopter transmissions. * **Aircraft Structures:** Wing ribs, fuselage frames, and landing gear components for advanced aircraft. * **Missile & Spacecraft Components:** Rocket motor housings, satellite structures, and guidance system housings. * **Defense & Military:** * Lightweight armor systems for vehicles and personnel. * Housings for portable electronics and communication systems in field environments. * **Racing & High-Performance Automotive:** * Components for engines and powertrains in Formula 1 and other elite racing series where weight and high-temperature performance are critical. --- ### **International Standards** The alloys produced with Mg-Y-Gd Master Alloy often conform to the most stringent international aerospace standards. * **ASTM International:** * **ASTM B93/B93M:** Standard Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings. Covers master alloys used to produce standard grades like WE54. * **SAE International (Aerospace Material Specifications - AMS):** * **SAE AMS 4427:** Magnesium Alloy Castings, 4.0Y - 3.0Rare Earth - 0.5Zr (WE43A-T6), Sand Cast. (While WE43 uses a different RE mix, it demonstrates the performance category). * **SAE AMS 4428:** Magnesium Alloy Castings, 4.0Y - 3.0Rare Earth - 0.5Zr (WE43A-T5), Sand Cast. * Alloys made with Mg-Y-Gd are often developed to meet or exceed the properties specified in these standards. * **European Standards (EN):** * **EN 1753:** Magnesium and magnesium alloys - Magnesium alloy ingots and castings. Provides a framework for the chemical and mechanical properties of advanced Mg-RE alloys. * **Chinese Standards (GB):** * **GB/T 19078:** Standard for Magnesium Alloy Ingots. Includes specifications for high-performance Mg-Y-RE and Mg-Gd-RE type alloys. --- ### **Packaging & Handling** * **Packaging:** To ensure maximum purity and prevent oxidation, the alloy is vacuum-sealed in moisture-proof plastic bags. These are then securely packed in sealed, lined steel drums. * **Storage:** Store in a cool, dry, and well-ventilated warehouse. Keep away from corrosive chemicals, acids, and oxidizing agents. * **Handling:** Standard industrial safety practices for reactive metals must be followed. Use personal protective equipment (PPE) including gloves and safety glasses. The alloy reacts with water or moisture to produce flammable hydrogen gas. All machining or cutting operations should be performed dry to prevent dust ignition. --- **Contact Us:** For detailed technical data sheets, quotations, or to discuss custom Mg-Y-Gd alloy formulations for your specific application, please contact our technical sales department. We are ready to support your most challenging material requirements.

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 3448 gallon liquid totes Special package is available on request.