Ti alloys - Chemical etching

Material Name: Ti alloys
Recipe No.: 11091
Primary Chemical Element in Material: Ti
Sample Type: Bulk
Uses: General microstructure
Etchant Name: None
Type (Macro/Micro): Micro
Etching Method: Chemical
Etchant (Electrolyte) Composition: 1 ml HF, 30 ml HNO3, 30 ml lactic acid.
Procedure (Condition): Swab sample up to 30 s. Decomposes readily, do not store. 2 ml HF used for alloy of Ti and 10% Sn (Lenning and coworkers).
Note: For outlining and darkening hydride in some Ti alloys.
Reference: Vander Voort, Metallography Principles and Practice, McGraw-Hill, Inc., 1986, p. 693.
















Copyright © 2020 by Steel Data. All Rights Reserved.