>From an earlier post, [Widmanstatten patterns] can happen in wrought iron alloys used for heat treating fixtures, aluminum alloys, copper alloys and very commonly in titanium alloys. It can also happen in HSLA alloys when improperly heat treated. While I personally dont have any pictures, I Googled it and came up with these: In iron alloys http://www.msm.cam.ac.uk/phase-trans/2002/widmanstatten.html http://doc.tms.org/ezMerchant/prodtms.nsf/ProductLookupItemID/MMTA-0001- 15/$FILE/MMTA-0001-15F.pdf?OpenElement http://metals.about.com/library/bldef-Widmanstatten-Structure.htm In Titanium http://stinet.dtic.mil/oai/oai? <http://stinet.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&iden tifier=ADA070745> &verb=getRecord&metadataPrefix=html&identifier=ADA070745 http://www.msm.cam.ac.uk/phase-trans/2000/C9/lecture3.pdf http://www.sciencedirect.com/science?_ob=ArticleURL <http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TXD-4K719V7- 1&_user=10&_coverDate=07%2F25%2F2006&_rdoc=1&_fmt=&_orig=search&_sort=d& view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8f512a19 205c0c408e41e0acd72c51b1> &_udi=B6TXD-4K719V7-1&_user=10&_coverDate=07%2F25%2F2006&_rdoc=1&_fmt=&_ orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_us erid=10&md5=8f512a19205c0c408e41e0acd72c51b1 http://www.springerlink.com/content/hm8447m741171048/ In copper http://www.copper.org/applications/cuni/corrosion_resistance_ni_alum_bro nze.html Quis Custodiet Ipsos Custodes Drake "Doc" Dameräu President, NEPRA NAR Section 614 L3CC member TRA 9934 L3 <http://www.nepra.com> www.nepra.com www.rocketmaterials.org <http://www.rocketmaterials.org/> http://home.sprynet.com/~monel/home.htm -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David & Kitt Deyarmin Sent: Thursday, February 01, 2007 4:31 PM To: [email protected] Subject: [meteorite-list] Etching Iron Meteorites You said it was incorrect to state that only meteorites exhibited a Widmanstatten pattern. What other materials exhibit a Widmanstatten pattern? Do you have pictures?
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