Magnesium Erbium Master Alloy (Mg-Er Alloy) Description
Magnesium Erbium Master Alloy is a specialized alloy composed of magnesium and erbium, a
rare earth element. This alloy is primarily used to enhance the mechanical
properties and high-temperature performance of magnesium-based alloys. The
addition of erbium to magnesium significantly improves its strength, heat
resistance, and corrosion resistance, making it an ideal material for
applications in demanding environments.
Magnesium Erbium Master Alloy (Mg-Er Alloy) Applications
·
Aerospace: Engine housings and satellite
brackets requiring high strength-to-weight ratios.
·
Biomedical: Resorbable bone fixation devices
with controlled degradation rates.
·
Automotive: High-temperature piston alloys for
reduced fuel consumption.
Magnesium Erbium Master Alloy (Mg-Er Alloy) Packaging
Our products are packaged in customized cartons of various
sizes based on the material dimensions. Small items are securely packed in PP
boxes, while larger items are placed in custom wooden crates. We ensure strict
adherence to packaging customization and the use of appropriate cushioning
materials to provide optimal protection during transportation.

Packaging: Carton, Wooden Box, or Customized.
Kindly review the packaging
details provided for your reference.
Manufacturing Process
1. Testing Method
(1) Chemical Composition Analysis - Verified using techniques
such as GDMS or XRF to ensure compliance with purity requirements.
(2) Mechanical Properties Testing - Includes tensile strength,
yield strength, and elongation tests to assess material performance.
(3) Dimensional Inspection - Measures thickness, width, and
length to ensure adherence to specified tolerances.
(4) Surface Quality Inspection - Checks for defects such as
scratches, cracks, or inclusions through visual and ultrasonic examination.
(5) Hardness Testing - Determines material hardness to confirm
uniformity and mechanical reliability.
Please refer to the SAM testing procedures for detailed information.
Magnesium Erbium Master Alloy (Mg-Er Alloy) FAQs
Q1. Why Er instead of other rare earths?
Er forms finer precipitates than Nd or Y, improving creep
resistance.
Q2. Is Mg-Er biocompatible?
Yes, Er’s low cytotoxicity supports medical implant use.
Q3. Can it replace Mg-Al alloys?
Yes, but requires higher processing temperatures (~650°C).
Performance Comparison Table with Competitive Products
Property
|
Mg-3Er
|
Mg-6Al
|
Mg-2Y
|
Tensile Strength (MPa)
|
300
|
240
|
280
|
Corrosion Rate (mg/cm²/day)
|
0.1
|
1.2
|
0.3
|
Max Service Temp (°C)
|
250
|
150
|
200
|
Related Information
1. Common Preparation Methods
Magnesium Erbium Master Alloy
(Mg-Er Alloy) is typically prepared by melting high-purity magnesium and adding
the appropriate amount of erbium under a controlled protective atmosphere (such
as argon or a CO₂ + SF₆ gas mixture) to prevent oxidation. The process is
usually carried out in a resistance or induction furnace with a graphite or
steel crucible. Erbium is gradually introduced into the molten magnesium at
elevated temperatures (typically around 700-750°C), ensuring complete
dissolution and uniform distribution. The molten alloy is then stirred, held
for homogenization, and cast into molds or ingots for solidification. Rapid
cooling may be applied to minimize segregation and improve microstructure uniformity.