Effect of Quench Hardening

tom2005

Before the material is hardened, the microstructure of the material is a pearlite grain structure that is uniform and laminar. Pearlite is a mixture of ferrite and cementite formed when steel or cast iron are manufactured and cooled at a slow rate. After quench hardening, the microstructure of the material form into martensite as a fine, needle-like grain structure.[1]

It is essential, before using this technique to look up the rate constants for the quenching of the excited states of metal ions.[2]

tom2005

There are three types of furnaces that are commonly used in quench hardening: salt bath furnace [3], continuous furnace [4], and box furnace. Each are used depending on what other processes or types of quench hardening being done on different materials.

tom2005

When quenching, there are four types of media: air, brine (salt water), oil, and water. These media are used to increase the severity of the quench. [5]