1. 
   Martempering
   Quenching an austenitized ferrous alloy in a medium at a temperature in the upper part of themartensite range, or slightly above that range, and holding it in the medium until the temperature throughout thealloy is substantially uniform. The alloy is then allowed to cool in air through the martensit...
   Found op http://www.diracdelta.co.uk/science/source/m/a/martempering/source.html
   
   
2. 
   Martempering
   Martempering is a heat treatment for steel involving austenitisation followed by step quenching, at a rate fast enough to avoid the formation of ferrite, pearlite or bainite to a temperature slightly above the martensite start (Ms) point. Soaking must be long enough to avoid the formation of bainit...
   Found op http://en.wikipedia.org/wiki/Martempering
   
   

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