Figure A2.
Original and filtered surfaces grit blasted by G 100 at 8 bar. The surfaces were, respectively, unfiltered (a) and filtered at 8.4 µm (b), 73.4 µm (c) and 603.8 µm (d). The relative area was calculated after filtering.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.