Aerospace Aluminum Alloys Quiz

What is the main reason for using aluminum in aerospace applications?

• High cost

• Resistance to electricity

• Low density

• High melting point

What is the primary purpose of adding lithium to aluminum alloys?

• Increase mass

• Improve flexibility

• Reduce density

• Enhance strength

What is the primary function of friction stir welding in joining aluminum components?

• Increase melting point

• Enhance electrical conductivity

• Fuse two pieces together

• Improve corrosion resistance

Which alloy is used in the cylindrical portion of the fuel tanks of SpaceX's Falcon 9?

What is the primary advantage of using aluminum-lithium alloy in aerospace applications?

• Increased brittleness

• Higher cost

• Lower strength

• Reduced weight

What is the primary function of t1 particles in aluminum alloys?

• Anchor dislocations

• Reduce strength

• Increase corrosion

• Enhance flexibility

What is the primary challenge of aluminum alloys exposed to cryogenic temperatures?

• Softening

• Hardening

• Brittleness

• Corrosion

Which alloy provides a 4 density reduction and a 5 elastic modulus improvement compared to the 7050 alloy?

• Aluminum lithium alloy

• Alloy 2050

• Alloy 2014

• Alloy 2219

What is the estimated value of the asteroid Psyche based on its metal content?

What is the primary advantage of using aluminum-osmium or aluminum-iridium alloys in aerospace applications?

• Lower cost

• Reduced weight

• Increased strength

• Enhanced flexibility