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Automotive and Transportation

Reducing mass directly impacts fuel consumption and carbon dioxide emissions, and provides additional benefits related to acceleration, braking, handling, and driving comfort.

The auto industry is increasingly using lightweight aluminum alloy for many components previously made from steel and cast iron.

According to the Aluminum Association, the use of aluminum in 2009 cars averaged 8.6 % by weight; up from 5.1% in 1990.

Cast aluminum alloys offer greater design flexibility over traditional stamped and welded steel parts.  Depending on part geometry, aluminum can match steel and cast iron for impact and fatigue performance.

Materials in Passenger Vehicles:

Casted aluminum parts often found in today’s cars and lightweight trucks include:

  • Cylinder heads
  • Engine blocks
  • Suspensions
  • Brake components.

Magnesium alloys have high damping capacity, which reduces vibrations that cause anelastic strains on a part. Low density of magnesium can allows for production of thicker parts that vibrate less and thereby reduce noise.

This combination of high dent resistance and elevated temperature properties make magnesium alloys a good choice for many automotive applications.