Magnesium Neodymium (Mg-Nd) Master Alloy,Magnesium Neodymium Alloy,Mg Nd Alloy,E FOUR

### **Magnesium Neodymium (Mg-Nd) Master Alloy** **Product Overview** Magnesium Neodymium Master Alloy, commercially designated as Mg-Nd Alloy, is a high-performance rare earth master alloy specifically formulated to enhance the mechanical properties, corrosion resistance, and elevated temperature performance of magnesium alloys. Neodymium, as a light rare earth element, provides exceptional precipitation hardening response and improves alloy stability through the formation of stable intermetallic compounds. This master alloy is essential for developing premium magnesium alloys with superior strength-to-weight ratios and enhanced thermal stability for aerospace, automotive, and high-value industrial applications. The alloy is typically supplied in ingot form, granules, or notched bars to facilitate controlled addition and efficient dissolution in magnesium melts. --- #### **1. Chemical Composition** Mg-Nd Master Alloy features precisely controlled neodymium content optimized for different application requirements. | Element | Composition (% by Weight) | | :---------------- | :-------------------------------- | | **Neodymium (Nd)** | 15.0 - 30.0 % | | **Magnesium (Mg)** | 65.0 - 80.0 % | | **Other Rare Earths** | ≤ 8.0 % | | **Iron (Fe)** | ≤ 0.03 % | | **Nickel (Ni)** | ≤ 0.005 % | | **Copper (Cu)** | ≤ 0.02 % | | **Silicon (Si)** | ≤ 0.05 % | | **Aluminum (Al)** | ≤ 0.05 % | | **Other Impurities** | ≤ 0.10 % (each) | *Note:* The **neodymium** content can be customized, with higher concentrations (25-30%) used for maximum strengthening effect, and moderate concentrations (15-25%) for balanced mechanical properties. The presence of **other rare earths** (mainly Praseodymium) is typically controlled to maintain consistent performance. --- #### **2. Physical & Mechanical Properties** The physical properties are influenced by the neodymium content, exhibiting distinct characteristics. **Physical Properties:** * **Density:** 1.9 - 2.3 g/cm³ (varies with Nd content) * **Melting Range:** 580 - 720 °C (1076 - 1328 °F) * **Appearance:** Silvery metallic with characteristic yellowish oxidation film * **Solubility in Magnesium:** Complete dissolution at standard casting temperatures **Effect on Final Magnesium Alloys:** When properly added to magnesium alloys, Mg-Nd Master Alloy provides: * **Excellent Precipitation Hardening:** Strong age-hardening response through Mg₃Nd precipitates * **Enhanced Elevated Temperature Strength:** Maintains properties up to 250°C * **Improved Creep Resistance:** Superior resistance to deformation under thermal stress * **Corrosion Resistance Enhancement:** Forms protective surface films * **Grain Refinement:** Moderately refines grain structure * **Microstructural Stability:** Maintains stable phase distribution during thermal cycling --- #### **3. International Standards & Specifications** Mg-Nd Master Alloy conforms to various international and industry specifications. * **ASTM International:** **ASTM B951** (Standard Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys) * **ISO Standards:** **ISO 16220** (Magnesium and magnesium alloys - Castings) * **SAE International:** **SAE J465** * **AMS Standards:** **AMS 4427** (for high-temperature magnesium-rare earth alloys) * **DIN Standards:** **DIN 1729-2** * **GB Standards:** **GB/T 19078** (Chinese National Standard) * **Custom Specifications:** Produced according to customer-specific technical requirements --- #### **4. Product Applications** Mg-Nd Master Alloy is critical for manufacturing advanced magnesium-rare earth alloys. * **Aerospace and Defense:** * **Aircraft Engine Components** * **Helicopter Transmission Housings** * **Missile Structural Components** * **Satellite and Spacecraft Parts** * **High-Performance Magnesium Alloys:** * **Mg-Nd-Zn-Zr Alloys** * **Mg-Nd-Y-Zr Alloys** * **Mg-Nd-Ag-Zr Alloys** * **WE43 and WE54 Alloy Variants** * **Automotive and Transportation:** * **High-Performance Engine Blocks** * **Racing Component Applications** * **Premium Automotive Powertrain Parts** * **Motorcycle Engine Components** * **Specialized Industrial Applications:** * **Nuclear Industry Components** * **High-Temperature Process Equipment** * **Medical Imaging Equipment** * **Precision Instrumentation** --- #### **5. Usage Guidelines and Processing** **Typical Addition Rates:** * **Standard Applications:** 1.5 - 5.0% of total melt weight * **High-Performance Applications:** 5.0 - 12.0% of total melt weight * **Maximum Recommended:** 15.0% of total melt weight **Processing Parameters:** * **Optimal Processing Temperature:** 700 - 760 °C (1292 - 1400 °F) * **Contact Time:** 25 - 45 minutes for complete reaction * **Mixing Requirements:** Mechanical stirring essential for homogeneous distribution * **Atmosphere Control:** Protective atmosphere (SF₆, SO₂, or Argon) mandatory * **Heat Treatment:** Excellent response to T5 and T6 temper treatments --- **Summary** **Magnesium Neodymium Master Alloy (Mg-Nd Alloy)** represents a sophisticated addition to the family of rare earth-containing magnesium master alloys, offering exceptional **precipitation hardening capability** and **elevated temperature performance**. The unique characteristics of **neodymium** enable the development of magnesium alloys that combine high strength, good corrosion resistance, and excellent thermal stability up to **250°C**. This master alloy has become particularly valuable for aerospace applications where the demanding requirements for weight reduction and high-temperature performance converge. While the cost is elevated due to its rare earth content, the performance benefits in terms of **specific strength**, **creep resistance**, and **alloy stability** make Mg-Nd Master Alloy an economically justified choice for premium applications. The continued advancement in Mg-Nd based alloy systems ensures their growing importance in lightweight engineering solutions across aerospace, defense, and high-performance industrial sectors, driving innovation in magnesium alloy technology.

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 3444 gallon liquid totes Special package is available on request.