Etchant for Ti alloyed 4340 for prior austenitic grain size
I am struggling to get a correct etchant for my 4340 steel sample which has been alloyed with Ti..The samples have been quenched and tempered(at 3 diff temp)..I have also tried as quenched specimens but that doesn't seem to work.
I have tried nital and variants of picric acid based etchants but that doesn't seem to help me although I was able to get the grain size measurements from the picric acid based etchants for the non-Ti alloyed 4340.
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