Heat Treatment Processes Quiz

___ is a process that adds a hard layer to the surface of a metal part while maintaining a softer core.

The rapid cooling of a metal to increase its hardness is known as ___.

To reduce brittleness after quench hardening, metals often undergo a process called ___.

___ improves the uniformity of a metal's grain structure and is often used to prepare metals for further heat treatments.

The process of ___ strengthens metals through the formation of microscopic precipitates within the material's structure.

Which heat treatment process is primarily used to relieve internal stresses and soften metals?

• Quench hardening

• Annealing

• Case hardening

• Precipitation hardening

In the context of heat treatments, what does "austenite" refer to?

• A type of cooling medium

• A crystalline structure of iron

• A heat treatment furnace

• A surface coating technique

Which of the following is NOT a primary goal of heat treatment processes?

• Increasing hardness

• Improving machinability

The formation of martensite is most closely associated with which heat treatment process?

• Annealing

• Normalising

• Quench hardening

• Tempering

What is the primary purpose of tempering after quench hardening?

• To increase hardness further

• To reduce internal stresses and brittleness

• To improve surface finish

• To increase the grain size