Posted by Bill - Australia on April 25, 2008 at 05:56:14:
In Reply to: Re: Tempered Bainite posted by Sarup Chopra on April 16, 2008 at 13:39:46:
With respect, Sarup, if a steel is heat treated to bainite and then tempered, it has a microstructure of tempered bainite, irrespective of the temperature of formation of the original bainite, i.e. irrespective of whether it was originally upper or lower bainite.
That said, an appearance as described in the original post sounds most unlike any possible microstructural feature and seems more likely to be the result of a problem in sample preparation.