06 Metals and Alloys Online Quiz Questions

A machine component may experience sudden impact. Which property describes its ability to absorb energy before breaking?

In the quenching-and-tempering treatment of many steels, reheating quenched steel below the transformation range helps reduce brittleness.

Which crystal structure is found in magnesium and often has fewer easily activated slip systems at room temperature?

A metal part must undergo substantial forming without fracturing. Which crystal structure is generally associated with ductility because it offers many directions for slip?

A manufacturer pushes metal through a die to produce a shaped length. Which process is being used?

Which listed features can impede dislocation motion and thereby contribute to increased strength or hardness? Select all correct answers.

Name one type of diagram used to help predict steel transformations at practical cooling rates.

A phase diagram can identify equilibrium phases for specified temperatures and compositions, but it does not by itself show how quickly a transformation occurs.

A steel component needs a finer, more uniform structure than full annealing commonly produces. Which treatment heats the steel into the austenite range and then cools it in air?

Which statements accurately describe precipitation hardening? Select all correct answers.

Explain how metallic bonding helps account for both the conductivity and the malleability of many metals.

Cast irons contain more carbon than steels and are commonly cast into complex shapes. True or false?

What engineering property describes a metal's ability to absorb energy before breaking?

A solid metal rod is pulled through a die to reduce its cross-section. Which process is being used?

Which feature of metallic bonding helps explain metals' ability to conduct both electricity and heat?

A building project needs a relatively inexpensive, formable, weldable metal for a structural frame. Which material is the best fit?

In a two-phase region of a binary phase diagram, what does a horizontal tie line identify?

After welding a metal component, an engineer wants to reduce residual stresses without aiming to harden the metal. What treatment should be considered?