Exam 22: Manufacturing Materials

Which acts as a toughener when added to steel?

Increasing the amount of chromium in steel increases its tensile strength and hardness.

The acronym AISI stands for ____.

Epoxy is classified as a thermoplastic.

Over 90 percent of all steel produced is ____________________ steel.

The acronym SAE stands for ____________________________________.

When heat is applied or when a catalyst is added to _________________________ plastics undergo an irreversible chemical change.

In a steel specification AISI 4460, the 44 stands for ____.

Molybdenum increases ____.

Thermoplastics soften or liquefy and flow when heat is applied.

Chromium vanadium steels are best known for hardness and strength.

The specific type of steel best known for its hardness, strength, and toughness is ____________________ steel.

The brittleness in hot steel is accountable to a surplus of ____.

Plastics are classified as either thermosetting or _________________________.

When copper is added to steel, it increases atmospheric corrosion resistance.