The properties of steel can be improved in terms of fatigue, weldability, hardness, wear and corrosion resistance, ductility, and tensile strength by either alloy addition or heat treatment processes.

The surface properties of some steel alloys can be adjusted through the introduction of specific elements via diffusion. An example of such a process is nitriding, where nitrogen is diffused into the ...

A Detroit entrepreneur surprised university engineers recently when he invented a heat-treatment that makes steel 7 percent stronger than any steel on record -- in less than 10 seconds. In fact, the ...