Etching Titanium
Etching Titanium
(OP)
Does anyone have any recommendations for etching 6-6-2 titanium in the STA condition? Some prefer Kroll's while some prefer a combination of Oxalic and Kroll's. Boeing recommends Kroll's but I am not getting good results. If I swab the specimen after etching, the structure is much more different than if just etched and dried. Any suggestions?





RE: Etching Titanium
Etchant 190 [8 g KOH + 10 ml H2O2 (30%) + 60 ml H2O]
Swab 3-20 s
Stains alpha and transformed beta, retained beta remains white
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: Etching Titanium