Posted by SMP on April 04, 2008 at 17:03:16:
In Reply to: Re: Retained Austenite posted by Sarup Chopra on April 02, 2008 at 13:46:45:
Identification of retained austenite by polishing and etching of a metallographic specimen is unreliable with quantities of less than 10% austenite. The best method, in any case, is to use x-ray diffraction. See ASTM Procedure E-975-93, X-ray Determination of Retained Austenite ...