Posted by Jeff on April 09, 2008 at 17:28:24:
In Reply to: galvanised and galvalume sample etching posted by prerana on April 07, 2008 at 02:34:44:
Search the archives at http://www.metallography.com/experts/search.html using the keyword zinc.
Here is a suggestion that was posted in response to a similar question.
"The best etch for zinc is to not etch but use crossed polarized light. It shows the structure vividly, as long as it is properly prepared. If you insist on etching, many are listed in (the)book, Metallography, Principles and Practice (McGraw-Hill, 1984) and other sources, e.g., ASM Metals Handbook on Metallography and Petzows etching book." - GV
Note: The Book Metallography Principles and Practice by George Vander Voort was republished by ASM International in 1999 (ISBN 0-87170-672-5).