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How Magnesium Alloy is Transforming the Automotive Industry

Magnesium alloys are well-known for being the lightest structural alloys [1].

They are made of magnesium, the lightest structural metal, mixed with other metal elements to improve the physical properties. These elements include manganese, aluminium, zinc, silicon, copper, zirconium, and rare-earth metals [2].

Some of magnesium’s favourable properties include low specific gravity and a high strength-to-weight ratio. As a result, the material lends itself to a range of automotive, aerospace, industrial, electronic, biomedical, and commercial applications

Properties and advantages Applications

Magnesium alloys cover a wide array of applications, from automotive and aerospace applications to electronic and biomedical uses.

Structural applications Automotive, aerospace, industrial, and commercial applications are examples of structural applications. The advantage of magnesium alloys to be used in such applications is their light weight, high strength-to-weight ratio, high stiffness-to-weight ratio, castability, machinability, and great damping [4].

Automotive: support brackets for brakes and clutch, housing for transmission

Aerospace: landing wheels, helicopter rotor fittings, gearbox housings

Industrial: high-speed operating machinery, such as textile machines

Commercial: luggage, hand tools, computer housings, ladders

Electronic applications Electronic applications include electronic packaging, hard drive arms, cell phone and portable media device housings. Magnesium alloys are being used instead of plastics due to their light weight, strength and durability. They also are relatively better for heat dissipation and protection against electromagnetic and radio frequency interference [5].

Medical applications Portable medical equipment and wheelchairs that require light material make good use of magnesium alloys. Also, cardiovascular stents and orthopaedic devices are potential applications of some magnesium alloys due to magnesium’s biocompatibility and bioabsorbability [4].

How Magnesium Alloy is Transforming the Automotive Industry

Magnesium alloy is quickly becoming one of the most important materials in the automotive industry due to its unique properties and benefits. Here are some ways that magnesium alloy is transforming the automotive industry:

Lightweighting: Magnesium alloy is up to 75% lighter than steel and 33% lighter than aluminum. This makes it an ideal material for reducing the weight of vehicles, which in turn improves fuel efficiency and reduces carbon emissions.

Strength and durability: Magnesium alloy is incredibly strong and durable, with a high strength-to-weight ratio. This means that it can withstand the rigors of everyday use in vehicles, such as vibration and impacts.

Design flexibility: Magnesium alloy is a highly malleable material, which means that it can be easily shaped and molded into complex forms. This makes it an ideal material for designing intricate and unique car parts, such as car dashboards.

Corrosion resistance: Magnesium alloy is highly resistant to corrosion, which means that it can withstand exposure to the elements and other corrosive substances.

Sustainability: Magnesium alloy is a sustainable material that can be easily recycled. This makes it an ideal material for automakers who are looking to reduce their environmental impact.

Overall, the use of magnesium alloy in the automotive industry is transforming the way cars are designed and manufactured. It is helping automakers to create lighter, more fuel-efficient, and sustainable vehicles that are built to last.

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