steel and aluminium alloys pictures

[jguti]

hi everybody!
I'm a mechanic on helicopters and I have to say that I'm quite curious...Can anybody share some pictures showin'
grains on steel and aluminium alloys? It'd be very interesting observing the patterns.Thanks

 

[unclesyd]

Try this wesite:

http://www.metallography.com

 

[TVP]

Other good sites for information on metallography and microstructure include the following:

http://www.buehler.com

http://www.struers.com