Heat Treatment Processes Quiz

(a)   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 (a)   .

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

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

The process of (a)   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