Transformations Of Ferrous Alloys And Other Metals

Heat treatment is all about the subsequent cooling and heating of the metals in a controlled manner in to alter the mechanical and the physical properties of metals without changing the shape of that specific product. At times, this process of heat treatment can be done in an periodic fashion. The reason for this is the process of manufacturing that works towards the cooling or heating the metal, like welding or forming.

Austempering Technology is an isothermal transformation of a ferrous alloy at a temperature above that of martensite formation and below that of pear-lite formation. Austempering of steel offers many promising benefits:

1. Increased toughness, strength and ductility, at a given hardness.

2. Reduced distortion, which lessens the subsequent stock removal, machining time, inspection, scrap and sorting.

3.The shortest time cycle to through-harden within the hardness range of thirty five to fifty five HRC, with resulting savings in capital investment and energy.

Austempering is also an isothermal transformation used to form a stable high-carbon austenite in harden-able cast irons and unique acicular matrix of bainitic ferrite. Austempering technology exactly means an uniform structure. It is a heat treatment that applied to the ferrous materials and then produces a structure that is stronger and tougher than comparable structures produced with the ordinary heat treatments. This typical heat treaters heat the parts to Red Heat in a controlled atmosphere and then quench them in a bath of oil or water that is maybe even as high as a few hundred degree Fahrenheit or near room temperature. This technology truly is - a better mousetrap.