Austempering

Austempering is heat treatment that is applied to ferrous metals, most notably steel and ductile iron. In steel it produces a bainite microstructure whereas in cast irons it produces a structure of acicular ferrite and high carbon, stabilized austenite known as ausferrite. It is primarily used to improve mechanical properties or reduce / eliminate...
Found on http://en.wikipedia.org/wiki/Austempering

Austempering

Quenching a ferrous alloy from a temperature above the transformation range, in a medium having a rate of heat abstraction high enough to prevent the formation of high-temperature transformation products, and then holding the alloy, until transformation is complete. The advantages of this method of interrupted quenching are increased ductility and ...
Found on http://www.diracdelta.co.uk/science/source/a/u/austempering/source.html
No exact match found