Figure 27.
Optical micrographs of (a) as-cast sample; (b) 10 min at 275 °C; (c) 60 min at 350 °C; and (d) 60 min at 325 °C.
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.