You must have misread my post. I did not say high carbon steels had Widmanstatten structures. To the contrary, the alloys I listed do not have any carbon at all. The only steel I listed was HSLA and I mentioned that it is difficult to get Widmanstatten patterns in them.
Pearlite is not the same as Widmanstatten, nor is martensite or bainite. Pearlite is a structure made of iron and iron carbide and only found in heat treated steels with carbon contents over 0.20% by weight. To confirm this, all you need to do is ask a professional metallurgist, but then thats what I am. Drake Quis Custodiet Ipsos Custodes Drake "Doc" Dameräu President, NEPRA NAR Section 614 L3CC member TRA 9934 L3 www.nepra.com www.rocketmaterials.org http://home.sprynet.com/~monel/home.htm > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:meteorite-list- > [EMAIL PROTECTED] On Behalf Of Mr EMan > Sent: Wednesday, January 31, 2007 10:09 PM > To: Gerald Flaherty; Sterling K. Webb; Drake; meteorite- > [EMAIL PROTECTED] > Subject: Re: [meteorite-list] Etching Iron Meteorites > > Dear Jerry, Why do you say "WOW!"? just WOW? I enjoy > a good discussion like everyone else so imagine my > disappointment in opening posts that just say Wow or > Cool or Gosh... It is better to interact like this is > a message board and not a chat room, in my opinion. If > we all do so it will knock my mailbox down to under > 200 messages a day. Thank you. Now to the discussion > at hand. > > So while some were moved to awe at this alleged > revelation, the fact remains to be proven that the > pearlite/ferrite/cementite patterns in high carbon > steel are correctly identified as Widmanstatten > patterns proper. They are micro structures and not > visible ASAIK to the naked eye. Plus they are > artifacts of human industry. We have yet to have Drake > confirm that these are other occurrences of > Widmanstatten patterns found in other than meteorites. > > Elton > > --- Gerald Flaherty <[EMAIL PROTECTED]> wrote: > > > WOW! > > Jerry Flaherty > > ______________________________________________ > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
